Head and Neck

Name and these bone belong to?

Neurocranium

A-Frontal
B-Parietal (2)
C- Sphenoid
D-Temporal (2)
E- Occipital
F-Ethmoid

Name and these bone belong to?

Neurocranium

A-Frontal
B-Parietal (2)
C- Sphenoid
D-Temporal (2)
E- Occipital
F-Ethmoid

Lamboid suture is between?

Parietal and Occipital bone

Coronal suture is between?

Frontal and Parietal bone

Sagittal suture is between?

Parietal and Parietal bone

Very thin compare to back of skull and susceptible to injury:

Pterion (star)

Craniometric point: 2 parietal bone and occipital bone

Lambda (x area)

Craniometric point: Parietal, occipital, and Temporal

Asterion (circle)

Craniometric point: Frontal, Parietal, sphenoid, temporal

Pterion (star)

Craniometric point: Frontal and 2 parietal bone

Bregma (triangle)

Name 1 and what bone part of this region:

Anterior cranial fossa:

1. 2 Frontal bone

2. Ethmoid

Name 2 and what bone part of this region:

Middle cranial fossa:

1. Sphenoid (2)

2. Temporal (2)

Name 3 and what bone part of this region:

Posterior Cranial Fossa:

Name 1 and nerve

Cribriform plate: CN I

Name 2 and nerve

Internal acoustic meatus: CN VII and VIII

Name 3 and nerve

Jugular foramen: CN IX, X, XI, Internal jugular vein

Name 4 and nerve

Hypoglossal Canal: CN XII

Name 5 and nerve

Foramen magnum: CN XI

Name 6 and nerve

Optic canal: CN II

Name 7 and nerve

Foramen ovale: CN V₃

1

Optic Canal: CN II

2

Superior Orbital Fissure: CN III, IV, V1, VI

3

Foramen Rotundum: V₂

Name and these bone belong to?

Viscerocranium:

1. Supraorbital Foramen (V1)

2. Infraorbital Foramen (V2)

3. Mental Foramen (V3)

Name the bone and what

Viscreocranium:

1. Nasal (2)

2. Lacrimal (2)

3. Ethmoid (1)

4. Maxilla

5. Zygomatic

6. Mandible

7. Inferior Nasal Concha

General function of special sensory nerve:

smell, sight, taste, hearing/balance

General function of visceral sensory:

Afferent from organ

General function of (somatic) sensory:

touch, temperature, pain, pressure (skin and mucosal membrane)

General function (somatic) motor:

voluntary (skeletal, striated) muscle movement

General function of visceral motor (Parasympathetic)

smooth muscle, cardiac muscle, gland

CN I is what type of nerve? and is it (sensory, motor, mixed?)

Olfactory nerve: sensory

CN II is what type of nerve? and is it (sensory, motor, mixed?)

Optic Nerve: sensory

CN III is what type of nerve? and is it (sensory, motor, mixed?)

Oculomotor nerve: motor

CN IV is what type of nerve? and is it (sensory, motor, mixed?)

Trochlear Nerve: motor

CN V is what type of nerve? and is it (sensory, motor, mixed?)

Trigeminal nerve: mixed

CN VI is what type of nerve? and is it (sensory, motor, mixed?)

Abducens Nerve: motor

CN VII is what type of nerve? and is it (sensory, motor, mixed?)

Facial nerve: mixed

CN VIII is what type of nerve? and is it (sensory, motor, mixed?)

Vestibulocohlear Nerve: sensory

CNIX is what type of nerve? and is it (sensory, motor, mixed?)

glossopharyngeal nerve: mixed

CNX is what type of nerve? and is it (sensory, motor, mixed?)

Vagus Nerve: mixed

CNXI is what type of nerve? and is it (sensory, motor, mixed?)

Accessory Nerve: Motor

CNXII is what type of nerve? and is it (sensory, motor, mixed?)

Hypoglossal Nerve: motor

Name 3 cranial nerves that carry parasympathetic fibers

1. CNIII- Oculomotor Nerve

2. CNIX- Glossopharyngeal Nerve

3. CNX- Vagus Nerve

CN I: Olfactory Nerve function and exit:

smell and cribriform plate

CN II – Optic Nerve function and exit:

Vision and optic canal

Oculomotor n. (CN III) function and exit:

GENERAL MOTOR: 5 extraocular muscles

VISCERAL MOTOR (Parasympathetic):
Sphincter pupillae and Ciliary muscles

Superior orbital fissure

Trochlear n. (CN IV) function and exit:

GENERAL MOTOR: Superior oblique m.

Superior orbital fissure

Abducens n. (CN VI) function and exit:

GENERAL MOTOR: Lateral Rectus m.

superior orbital fissure

Major sensory nerve of Head and Neck. Only motor component of
this nerve is part of the Mandibular Division

CN V- Trigeminal Nerve

What makes up the CN V- Trigeminal Nerve?

1. Opthalmic divison (V₁)

2. Maxillary divison (V₂₎

3. Mandibular divison (V₃₎

CN V1 – Ophthalmic Division function and exit:

GENERAL SENSORY: Cornea, conjunctiva, nose, upper eyelid, forehead, anterior scalp

Superior orbital fissure

CN V₂ Maxillary Division function and exit:

GENERAL SENSORY: Nasal mucosa, palate, nasopharynx, maxillary sinus, maxillary gums & teeth, cheeks, lower eyelid, upper lip

Foramen rotundum

CN V3 – Mandibular Division function and exit:

GENERAL SENSORY: Anterior 2/3 tongue, skin of chin, mandible, lower teeth, anterior ear, temple

GENERAL MOTOR: Muscles of mastication

Foramen ovale

CN VII – Facial Nerve function and exit:

GENERAL MOTOR: Muscles of facial expression, posterior belly of digastric & stylohyoid muscle

SPECIAL SENSORY
Taste from anterior 2/3 tongue

VISCERAL MOTOR (PARASYMPATHETIC):
Increases secretions from lacrimal, submandibular, sublingual glands, and nasal & palate mucosa

Internal acoustic meatus

CN VIII-Vestibulocochlear Nerve function and exit:

SPECIAL SENSORY: Vestibular branch: Balance & Equilibrium Cochlear branch: Hearing

Internal acoustic meatus

CN IX – Glossopharyngeal Nerve function and exit:

GENERAL SENSORY: Sensation from posterior 1/3 of tongue, most of the pharynx

SPECIAL SENSORY: Taste from posterior 1/3 of tongue

GENERAL MOTOR: Stylopharyngeus muscle

VISCERAL MOTOR (Parasympathetic): Parotid Gland

Jugular foramen

CN X – Vagus Nerve

SPECIAL SENSORY: Taste from epiglottis and pharynx

GENERAL SENSORY: From pharynx and larynx

GENERAL MOTOR: Most pharynx muscles, most soft palate muscles and all larynx muscles

VISCERAL MOTOR (Parasympathetic): Smooth muscle of most of the GI tract, cardiac muscle, and glands in lungs, pharynx, larynx, trachea, and most abdominal organs

CN XI – Spinal Accessory Nerve

GENERAL MOTOR:
Trapezius and Sternocleidomastoid muscle

CN XII – Hypoglossal Nerve

GENERAL MOTOR: All intrinsic muscles and most extrinsic muscles of the tongue

What is this and name each bone

Orbit

1. Frontal

2. Sphenoid

3. Zygomatic

4. Palatine

5. Ethmoid

6. Lacrimal

7. Maxilla

Fierce Zebras Sprint Past Every Lazy Monkey

What’s 1 and what nerve does it transmit?

Supraorbital foramen- transmits supraorbital n. (CN V₁)

What’s 2 and what nerve does it transmit?

Infraorbital foramen-transmits Infraorbital n (CN V₂)

What’s 1 and what nerve does it transmit?

Superior Orbital Fissure: transmits CN V₁, CN III, IV, VI & Ophthalmic v

What’s 2 and what nerve does it transmit?

Inferior Orbital Fissure: transmits the Infraorbital nerve (CN V₂)

What’s 3 and what nerve does it transmit?

Optic Canal: transmits Ophthalmic a. & CN II

“looking directly ahead” which is the anatomical position of the eye- known as what axis?

Optical axis

anatomical alignment from the apex of the orbits which is at 45 degrees from each other.

Orbital axis

Name 1 and its nerve

Superior rectus: CN III

Name 2 and its nerve:

superior oblique: CN IV (Trochlear nerve)

Name 3 and its nerve:

Medial Rectus: CN III (oculomotor nerve)

Name 4 and its nerve:

Inferior Rectus: CN III (oculomotor nerve)

Name 5 and its nerve:

Lateral Rectus: CN VI (Abducens nerve)

Name the circle region

Trochlea

What’s this muscle, its function, nerve

M: Levator palpebrae superioris

F: moves eyelid

N: CN III

Control movement of eye

1. Inferior oblique

2. Superior Rectus

1. Superior rectus

2. Inferior Oblique

1. Superior rectus

2. Inferior Oblique

1. Lateral rectus

2. Medial Rectus

1. Medial Rectus

2. Lateral Rectus

1. Superior Oblique

2. Inferior Rectus

1. Superior oblique

2. Inferior rectus

1. Inferior rectus

2. Superior oblique

Name 3 intrinsic muscle of eye that control movement of the lens and pupil

1. Ciliary muscle

2. Sphincter pupillae

3. Dilator pupillae

Green —> is under what control and what does it do?

Sympathetic control:

—> dilate pupil

Widened eye
• Superior tarsal (Muller’s) muscle

Red—>is under what control and what does it do?

Parasympathetic Control:

Constricts pupil
• Sphincter pupillae muscle

• Rounds/thickens lens for near vision
• Ciliary muscle

What muscle maintain the opening of the palpebral fissure. Also produces
additional widening of the palpebral fissure during excitement/fear?

Superior tarsal muscle assists levator palpebrae superioris (CNIII)
muscle to do this

Muscle responsible for miosis

Dilator pupilae

Muscle responsible for ptosis (drooping eyelid)

Superior torsal muscle