8. Head, Neck and Back

Regio scapularis is a back region.

A. yes

B. no

A) yes

The anterior rami of C1 through C4 take part in the formation of cervical plexus.

A. yes

B. no

A) yes

The boundaries between the thoracic region and the back are the anterior axillary lines.

A. yes

b. no

B) no

Sternocleidomastoid is a superficial muscle of the back.

A. yes

B. no

B) no

M.latissimus dorsi is a powerful extensor of the arm.

A. yes

B. no

A) yes

Superficial muscles of the back are supplied by dorsal branches of spinal nerves.

A. yes

B. no

B) no

Auscultation triangle on the back is located medial to the scapula.

A. yes

B. no

A) yes

Serratus posterior superior muscle is a muscle of inspiration.

A. yes

B. no

A) yes

Muscles of the back are arranged in three groups with distinct functions.

A. yes

B. no

A) yes

Erector spinae muscle is made of three columns.

A. yes

B. no

A) yes

Intermediate muscles of the back are respiratory muscles.

A. yes

B. no

A) yes

Platysma is innervated by a branch of the facial nerve.

A. yes

B. no

A) yes

The platysma is a superficial muscle that overlaps the sternocleidomastoid.

A. yes

B. no

A) yes

Accessory nerve is a branch of cervical plexus.

A. yes

B. no

B) no

Phrenic nerve (C3-C5 (primarily C4)) -innervates thoracic diaphragm.

A. yes

B. no

B) yes

Internal carotid artery has two cervical branches.

A. yes

B. no

B) no

The upper end of internal jugular vein dilates into internal jugular fossa

A. yes

B. no

A) yes

Near the termination of the internal jugular vein is a smaller dilatation, the inferior bulb.

A. yes

B. no

A) yes

The inferior thyroid artery is a branch of the external carotid artery.

A. yes

B. no

B) no

The submandibular gland is in infrahyoid region.

A. yes

B. no

B) no

Which one of the listed is not a muscle of the back:

A. M . serratus posterior superior

B. M. serratus anterior

C. M. iliocostalis

D M. longissimus

E. M. spinalis

B) M. serratus anterior

Which of the muscles listed below is a deep muscle of the back:

A. Levator costae

B. Latissimus dorsi

C. Levator scapulae

D. Rhomboidei

E. Splenius

E) Splenius

Interruption of cranial nerve XI would paralyze which muscle?

A. deltoid

B. latissimus dorsi

C. levator scapulae

D. rhomboideus major

E. trapezius

E) trapezius

If the right dorsal scapular nerve was cut near its origin, what would result:

A. Skin of the upper back on the right side would benumb

B. The point of the right shoulder would droop

C. Scapular retraction on the right would be weakened

D. Extension of the right arm would be weakened

E. Inability to adduct the right arm

C) Scapular retraction on the right would be weakened

The cutaneous branch of the posterior primary ramus of C2 is called the:

A. Accessory nerve

B. Great auricular nerve

C. Greater occipital nerve

D. Lesser occipital nerve

E. Superior ramus of the ansa cervicalis

C) Greater occipital nerve

Which muscle is innervated by posterior primary rami?

A. Latissimus dorsi

B. Levator scapulae

C. Rhomboideus major

D. Erector spinae

E. Trapezius

D) Erector spinae

Which of the elements listed below is not in the subcutaneous layer of the neck?

A. M. platysma

B. V. jugularis anterior

C. V. jugularis externa

D. Plexus cervicalis

E. Transverse cervical nerve

D) Plexus cervicalis

Which of the following does not belong to the infrahyoid muscles?

A. M. sternothyroideus

B. M. omohyoideus

C. M. sternocleidomastoideus

D. M. sternohyoideus

E. M. thyrohyoideus

C) M. sternocleidomastoideus

Which one of the following structures is NOT related to infrahyoid region?

A. gl. thyroidea

B. m. thyrohyoideus

C. n. vagus

D. m. cricothyroideus

E. v. jugularis anterior

C) n. vagus

Which one of the following structures is not related to the carotid triangle?

A. hypoglossal nerve

B. superior laryngeal nerve

C. facial artery

D. thyrohyoid muscle

E. sternohyoid muscle

E) sternohyoid muscle

Loss of sensation from the temporal region and loss of secretory function of the parotid gland would be caused by interruption of which nerve?

A. Auriculotemporal

B. Chorda tympani

C. Deep temporal, posterior

D. Facial

E. Great auricular

A) Auriculotemporal

An elderly man presented with severe pain beneath the left eye, radiating into the lower eyelid, lateral side of the nose and upper lip. What nerve was involved?

A. Buccal

B. Infraorbital

C. Mental

D. Supratrochlear

E. Zygomatic

B) Infraorbital

To study the compensatory response of selective suprahyoid muscles in elevating the hyoid bone, an experiment was designed in which the posterior belly of the digastric and stylohyoid muscles were paralyzed by drugs. The muscular branches of which of the following nerves must be chemically interrupted to produce paralysis in both muscles?

A. inferior alveolar

B. facial

C. hypoglossal

D. glossopharyngeal

E. lingual

B) facial

Which nerve provides motor innervation to the buccinator muscle?

A. Auriculotemporal nerve

B. Buccal branches of CN VII

C. Buccal nerve

D. Mandibular division of CN V

E. Marginal mandibular nerve

B) Buccal branches of CN VII

Which nerve provides cutaneous innervation to the skin of the angle of the mandible?

A. Auriculotemporal nerve

B. Lesser petrosal nerve

C. Buccal branches of VII

D. Marginal mandibular nerve

E. Great auricular nerve

E) Great auricular nerve

Which nerve carries postganglionic parasympathetic fibers to the parotid gland?

A. Auriculotemporal nerve

B. Lesser petrosal nerve

C. Glossopharyngeal nerve

D. Great auricular nerve

E. Marginal mandibular nerve

A) Auriculotemporal nerve

A patient is unable to wink; what muscle is affected?

A. frontalis

B. levator palpebrae superioris

C. orbicularis oculi

D. superior tarsal

E. zygomaticus major

C) orbicularis oculi

What structure lies deepest in the parotid gland?

A. External carotid artery

B. External jugular vein

C. Facial artery

D. Facial nerve

E. Retromandibular vein

A) External carotid artery

A deep laceration of the face in the middle of the parotid gland could affect the:

A. External jugular vein

B. Facial nerve

C. Glossopharyngeal nerve

D. Hypoglossal nerve

E. Lingual artery

B) Facial nerve

Pain elicited from an infected facial wound is primarily conveyed by what nerve?

A. Facial

B. Great auricular

C. Hypoglossal

D. Transverse cervical

E. Trigeminal

E) Trigeminal

Inability to close the lips relates to the action of which muscle?

A. Anterior belly of the digastric

B. Mylohyoid

C. Orbicularis oris

D. Platysma

E. Zygomaticus major

C) Orbicularis oris

Which muscle will not be affected when the mandibular division of the trigeminal nerve (V3) is anesthetized?

A. Anterior belly of digastric

B. Buccinator

C. Medial pterygoid

D. Mylohyoid

E. Temporalis

B) Buccinator

The parotid space contains all EXCEPT:

A. External carotid artery

B. Facial nerve

C. Intraparotid lymph nodes

D. Medial pterygoid muscle

E. Retromandibular vein

D) Medial pterygoid muscle

The facial muscle most responsible for moving the lips both upward and laterally to produce a smile is:

A. Buccinator

B. Levator anguli oris

C. Levator labii superioris

D. Platysma

E. Zygomaticus major

E) Zygomaticus major

The muscle which separates the submandibular triangle from the paralingual space is the:

A. Digastric, posterior belly

B. Hyoglossus

C. Mylohyoid

D. Stylohyoid

E. Styloglossus

C) Mylohyoid

The predominant muscle most associated with retraction of the mandible is the:

A. lateral pterygoid

B. masseter

C. medial pterygoid

D. temporalis

E. mylohyoid

D) temporalis

At the temporomandibular joint (TMJ), binge movements occur between the:

A. condyle and articular eminence

B. articular disc and articular eminence

C. condyle and articular disc

D. articular disc and articular cavity

E. condyle and articular cavity

C) condyle and articular disc

Incapacity to protrude the mandible indicates a dysfunction of which muscle?

A. Anterior belly of digastric

B. Buccinator

C. Lateral pterygoid

D. Mylohyoid

E. Temporalis

C) Lateral pterygoid

Damage to the facial nerve near the stylomastoid foramen would likely cause each of the following motor deficits EXCEPT:

A. Paralysis of the buccinator muscle

B. Inability to whistle

C. Paralysis of the muscles that elevate the mandible

D. Inability to close the lips

C) Paralysis of the muscles that elevate the mandible

What bony feature of the mandible can be used to find and palpate the facial artery?

A. Oblique line

B. Mental trigone

C. Angle

D. Premasseteric notch

D) Premasseteric notch

Which of the following suprahyoid muscles would be paralyzed if the inferior alveolar nerve was severed at its origin?

A. Geniohyoid m.

B. Hyoglossus m.

C. Mylohyoid m.

D. Stylohyoidm.

C) Mylohyoid m.

After the mandibular condyle is moved forward onto the articular eminence (e.g., by opening the mouth widely), what muscle can then retract the mandible?

A. Superficial head of masseter m.

B. Deep head of masseter m.

C. Posterior part of temporalis m.

D. Anterior part of temporalis m.

C) Posterior part of temporalis m.

Two nerves usually emerge from between the two heads of the lateral pterygoid muscle: the anterior deep temporal nerve and the:

A. Masseteric n.

B. Buccal n.

C. Lingual n.

D. Inferior alveolar n

B) Buccal n.

Paralysis of which of the following muscles would impede retraction of the mandible?

A. Buccinator

B. Lateral pterygoid, lower portion

C. Lateral pterygoid, upper (sphenomeniscus) portion

D. Medial pterygoid

E. Temporalis

E) Temporalis

A cranial fracture through the foramen ovale that compresses the enclosed nerve, will have an effect on all muscles EXCEPT :

A. Tensor tympani

B. Masseter

C. Buccinator

D. Mylohyoid

E. Temporalis

C) Buccinator

Which muscle is also known as the sphenomeniscus?

A. Inferior head of the lateral pterygoid

B. Masseter

C. Medial pterygoid

D. Superior head of the lateral pterygoid

E. Temporalis

D) Superior head of the lateral pterygoid

Forward movement of the condyle of the mandible during wide opening of the jaws is accomplished mainly by the:

A. anterior part of temporalis muscle

B. lateral pterygoid muscle

C. masseter muscle

D. medial pterygoid muscle

E. posterior part of the temporalis muscle

B) lateral pterygoid muscle

The middle meningeal artery:

A. enters the skull through the foramen ovale

B. passes through a split in the trunk of the mandibular nerve (V3)

C. is typically a branch of the second part of the maxillary artery

D. supplies blood to the temporal lobe of the brain

E. usually arises deep to the neck of the mandible

E) usually arises deep to the neck of the mandible

The temporomandibular joint is characterized by all EXCEPT:

A. A capsule strengthened by ligaments on its lateral side only

B. A completely flat surface for its gliding action

C. An articular disc

D. Extracapsular ligaments

E. Two joint cavities of different shapes

B) A completely flat surface for its gliding action

There is arterial bleeding on superficial surface of the of the posterior third of the tongue; which of the following arteries was involved?

A. Deep lingual

B. Dorsal lingual

C. Facial

D. Sublingual

E. Tonsillar

B) Dorsal lingual

There is difficulty in swallowing due to involvement of which muscle that elevates the tongue?

A. Genioglossus

B. Hyoglossus

C. Styloglossus

D. Stylohyoid

E. Stylopharyngeus

C) Styloglossus

Cutting of the hypoglossal nerve in the hypoglossal canal would not interrupt the nerve supply to the:

A. Hyoglossus muscle

B. Genioglossus muscle

C. Palatoglossus muscle

D. Styloglossus muscle

C) Palatoglossus muscle

The contents of the paralingual space do NOT include the:

A. Hypoglossal nerve

B. Lingual artery

C. Lingual nerve

D. Submandibular gland

E. Sublingual gland

B) Lingual artery

A patient is unable to taste a piece of sugar placed on the anterior part of the tongue. Which cranial nerve is most likely to have a lesion?

A. Facial nerve

B. Glossopharyngeal nerve

C. Hypoglossal nerve

D. Trigeminal nerve

E. Vagus nerve

A) Facial nerve

The chorda tympani contains which component before it joins the lingual nerve?

A. Preganglionic sympathetics

B. Postganglionic sympathetics

C. Preganglionic parasympathetics

D. Postganglionic parasympathetics

E. Taste fibers to the posterior third of the tongue

C) Preganglionic parasympathetics

Which of the following structures is located in the vestibule of the oral cavity?

A. Tongue

B. Opening of the parotid duct

C. Opening of the submandibular duct

D. Sublingual fold

E. Uvula

B) Opening of the parotid duct

The muscle responsible for raising the floor of the mouth in the early stages of swallowing is the:

A. genioglossus

B. geniohyoid

C. hyoglossus

D. mylohyoid

E. palatoglossus

D) mylohyoid

In accessing the submandibular gland in the submandibular triangle, what vessel coursing through the gland and triangle would need to be protected?

A. External jugular vein

B. Facial artery

C. Maxillary artery

D. Retromandibular vein

E. Superior thyroid artery

B) Facial artery

All of the following may be found in the paralingual space EXCEPT:

A. Hypoglossal nerve

B. Lingual nerve

C. Sublingual gland

D. Submandibular gland duct

E. Superficial lobe of the submandibular gland

E) Superficial lobe of the submandibular gland

WHICH IS TRUE?

Lamina superficialis of the deep cervical fascia:

A. Covers entire neck

B. Forms fascia masseterica

C. Extends from the skull base to the bodies of T3-T4

D. Forms fascia of submandibular gland

E. Extends posteriorly to proc. transversi

A) Covers entire neck

D) Forms fascia of submandibular gland

E) Extends posteriorly to proc. transversi

WHICH IS TRUE?

Which of the following structures are boundaries of lateral cervical region?

A. Posterior border of m. sternocleidomastoideus.

B. Venter anterior of m. digastricus

C. Anterior border of m. trapezius

D. Venter superior of m. omohyoideus

E. Middle third of clavicle.

A. Posterior border of m. sternocleidomastoideus.

C. Anterior border of m. trapezius

E. Middle third of clavicle.

WHICH IS TRUE?

Which of the following structures are elements of lateral cervical region?

A. Mm. scaleni

B. A. carotis communis

C. V. jugularis interna

D. A. subclavia

E. V. subclavia

A. Mm. scaleni

D. A. subclavia

E. V. subclavia

WHICH IS TRUE?

Which of the following are from the superficial muscles of the back?

A. M. trapezius

B. M. pectoralis major

C. M. latissimus dorsi

D. M. rectus abdominis

E. M. levator scapulae

A. M. trapezius

C. M. latissimus dorsi

E. M. levator scapulae

WHICH IS TRUE?

The deep muscles of the back:

A. divide into three subgroups

B. erect the body and the neck in bilateral contraction

C. are located dorsally to the vertebral column

D. are supplied by the ventral branches of the spinal nerves

E. are autochtonous (own) muscles of the back.

A. divide into three subgroups

B. erect the body and the neck in bilateral contraction

D. are located dorsally to the vertebral column

E. are autochtonous (own) muscles of the back.

WHICH IS TRUE?

The cervical plexus of nerves:

A. supplies motor branches to the infrahyoid muscles

B. supplies motor branches to the muscles of the suboccipital triangle

C. supplies branches to the trapezius muscle

D. supplies sensory branches to the diaphragm

E. supplies sensory branches to the front of the scalp.

A. supplies motor branches to the infrahyoid muscles

C. supplies branches to the trapezius muscle

D. supplies sensory branches to the diaphragm

WHICH IS TRUE?

The sternocleidomastoid muscle:

A. is attached to the temporal bone deep to the splenius capitis muscle

B. is active if the head is flexed against resistance

C. has a nerve supply from the cervical plexus

D. is an anterior relation of the scalenus anterior muscle

E. is crossed superficially by the external jugular vein.

B. is active if the head is flexed against resistance

C. has a nerve supply from the cervical plexus

D. is an anterior relation of the scalenus anterior muscle

E. is crossed superficially by the external jugular vein

WHICH IS TRUE?

The thyroid gland:

A. clasps the upper part of trachea.

B. is highly vascular.

C. doesn't move with the larynx.

D. is ductless gland.

E. consists of only one lobe.

A. clasps the upper part of trachea

B. is highly vascular

D. is ductless gland

WHICH IS TRUE?

The brachiocephalic vein:

A. collects blood only from the head and neck.

B. ends by joining the opposite one to form the superior vena cava.

C. has no valves.

D. the right one crosses the median plain.

E. the right one is laterally to the brachiocephalic artery

B. ends by joining the opposite one to form the superior vena cava

C. has no valves

E. the right one is laterally to the brachiocephalic artery

WHICH IS TRUE?

The vertical neurovascular bundle of the neck:

A. lies on each side of the median airway and foodway.

B. extends from the base of the skull to the root of the neck.

C. contains glossopharyngeal nerve in its lower part.

D. is enclosed by the layers of the deep cervical fascia.

E. lies on the sympathetic trunk.

A. lies on each side of the median airway and foodway

B. extends from the base of the skull to the root of the neck

D. is enclosed by the layers of the deep cervical fascia

E. lies on the sympathetic trunk

WHICH IS TRUE?

The internal jugular vein:

A. in the upper part of the neck is posterolateral to the internal carotid a.

B. is accompanied superiorly by the last four cranial nerves.

C. is posterior to vagus nerve

D. has inferiorly the sympathetic trunk lying between the vein and common carotid artery.

E. lies on the cervical plexus

A. in the upper part of the neck is posterolateral to the internal carotid a.

B. is accompanied superiorly by the last four cranial nerves

E. lies on the cervical plexus

WHICH IS TRUE?

A. carotis externa:

A. is in the carotid triangle

B. gives off a. thyroidea inferior

C. supplies head and neck structures

D. has baroreceptors at its origin - the bifurcation of the common carotid artery

E. occurs at the upper border of the thyroid cartilage.

A. is in the carotid triangle

C. supplies head and neck structures

E. occurs at the upper border of the thyroid cartilage

WHICH IS TRUE?

Which of the following are NOT anterior branches of external carotid artery?

A. A. pharyngea ascendens

B. A. thyroidea superior

C. A. sternocleidomastoidea

D. A. lingualis

E. A. occipitalis

A. A. pharyngea ascendens

C. A. sternocleidomastoidea

E. A. occipitalis

WHICH IS TRUE?

Anterior branches of external carotid artery are:

A. A. thyroidea superior

B. A. occipitalis

C. A. lingualis

D. A. subscapularis

E. A. facialis

A. A. thyroidea superior

C. A. lingualis

E. A. facialis

WHICH IS TRUE?

The following elements are located in the carotid triangle:

A. N. laringeus superior

B. N. hypoglossus

C. Glandula thyroidea

D. Ansa cervicalis

E. A. thyroidea inferior

A. N. laringeus superior

B. N. hypoglossus

D. Ansa cervicalis

WHICH IS TRUE?

The internal carotid artery:

A. enters the skull through the foramen lacerum

B. divides into the anterior and middle cerebral arteries

C. gives off the ophthalmic artery

D. is accompanied within the skull by preganglionic sympathetic nerve fibres

E. usually begins about the level of the cricoid cartilage.

B. divides into the anterior and middle cerebral arteries

C. gives off the ophthalmic artery

WHICH IS TRUE?

The scalenus anterior muscle:

A. is anterior to the nerves forming the brachial plexus

B. is attached to the posterior tubercles of the transverse processes of some of the cervical vertebrae

C. is medial to the vertebral artery

D. is anterior to the subclavian artery

E. is lateral to the inferior cervical ganglion.

A. is anterior to the nerves forming the brachial plexus

D. is anterior to the subclavian artery

E. is lateral to the inferior cervical ganglion

WHICH IS TRUE?

The external carotid artery:

A. is crossed anteriorly by the hypoglossal nerve

B. usually divides into its terminal branches at the level of the angle of the jaw

C. at its origin is lateral to the internal carotid artery

D. is the only source of blood to the thyroid gland

E. is superficial to the glossopharyngeal nerve.

A. is crossed anteriorly by the hypoglossal nerve

E. is superficial to the glossopharyngeal nerve

WHICH IS TRUE?

The recurrent laryngeal nerve:

A. has fibres whose cell bodies are in the nucleus ambiguus of the hindbrain

B. is entirely a motor nerve

C. is a close relation of the inferior thyroid artery

D. supplies all the muscles of the larynx

E. supplies some of the intrinsic muscles of the larynx.

A. has fibres whose cell bodies are in the nucleus ambiguus of the hindbrain

C. is a close relation of the inferior thyroid artery

E. supplies some of the intrinsic muscles of the larynx

WHICH IS TRUE?

The cricoid cartilage:

A. has an anterior arch which moves upwards and backwards due to the contraction of the cricothyroid muscle

B. lengthens the vocal fold (true vocal cord) when its anterior part moves upwards and backwards

C. has the vocal folds attached to it

D. gives attachment to the inferior constrictor muscle of the pharynx

E. is at the level of the fourth cervical vertebra

A. has an anterior arch which moves upwards and backwards due to the contraction of the cricothyroid muscle

B. lengthens the vocal fold (true vocal cord) when its anterior part moves upwards and backwards

D. gives attachment to the inferior constrictor muscle of the pharynx

WHICH IS TRUE?

The scalenus medius muscle:

A. is posterior to the nerves forming the brachial plexus

B. is attached to the scalene tubercle

C. is used in deep breathing

D. is posterior to the subclavian artery

E. is crossed anteriorly by the omohyoid muscle.

A. is posterior to the nerves forming the brachial plexus

C. is used in deep breathing

D. is posterior to the subclavian artery

E. is crossed anteriorly by the omohyoid muscle

WHICH IS TRUE?

The internal jugular vein:

A. is along its whole course, directly lateral to the internal carotid artery

B. has no valves

C. is anterior to the phrenic nerve

D. receives all the venous blood from the thyroid gland

E. is anterior to the thoracic duct on the left side

C. is anterior to the phrenic nerve

E. is anterior to the thoracic duct on the left side

WHICH IS TRUE?

The digastric muscle:

A. has a motor innervation from nerves of the branchial arches

B. is inferior to the submandibular gland

C. is attached to the ramus of the mandible

D. is superficial to the hypoglossal nerve

E. is deep to the carotid sheath

A. has a motor innervation from nerves of the branchial arches

B. is inferior to the submandibular gland

D. is superficial to the hypoglossal nerve

WHICH IS TRUE?

The scalenus anterior muscle:

A. is anterior to the subclavian vein

B. is anterior to the phrenic nerve

C. is anterior to the suprascapular artery

D. is used in deep respiration

E. is attached to the first and second ribs

D. is used in deep respiration

WHICH IS TRUE?

Trigonum submandibulare contains:

A. glandula submandibularis

B. accessory nerve

C. phrenic nerve

D. facial artery

E. lingual nerve

A. glandula submandibularis

D. facial artery

E. lingual nerve

WHICH IS TRUE?

The following elements are part of trigonum submandibulare:

A. n. mylohyoideus

B. n. hypoglossus

C. glandula thyroidea

D. trigonum Pirogovi

E. a. thyroidea inferior

A. n. mylohyoideus

B. n. hypoglossus

D. trigonum Pirogovi

A) M. latissimus dorsi

B) M. levator scapulae

C) M. platysma

D) M. trapezius

E) M. erector spinae

----------

1) N. facialis

2) Rr. dorsales of nn. spinales

3) N. dorsalis scapulae

4) N. thoracodorsalis

5) N. accessories

A) M. latissimus dorsi: N. thoracodorsalis

B) M. levator scapulae: N. dorsalis scapulae

C) M. platysma: N. facialis

D) M. trapezius: N. accessories

E) M. erector spinae: Rr. dorsales of nn. spinales

A) Cervical plexus

B) Spinal accessory nerve

C) Cranial accessory nerve

D) Facial nerve

E) None of these

----------

1) Platysma

2) Infrahyoid

3) Sternocleidomastoid

4) Levator veli palatini

5) Orbicularis oculi

A) Cervical plexus: infrahyoid

B) Spinal accessory nerve: sternocleidomastoid

C) Cranial accessory nerve: -

D) Facial nerve: platysma, orbicularis oculi

E) None of these: levator veli palatini

A) Anterior cervical triangle

B) Posterior (lateral) cervical triangle

----------------

1) Omotrapezoid (subclavian triangle)

2) Carotid

3) Omoclavicular (occipital triangle)

4) Digastric triangle

A) Anterior cervical triangle: carotid, digastric triangle

B) Posterior (lateral) cervical triangle: omotrapezoid (subclavian triangle), omoclavicular (occipital triangle)

Erector spinae muscle comprises three muscle columns:

A. spinalis

B. longissimus

C. iliocostalis

List the boundaries of lateral cervical triangle:

A. trapezius m.

B. sternocleidomastoid m.

C. clavicle