Exam 3 Head and Neck

Which nerve brings sensation to the lower eyelid, side of the nose and the upper lip?

Infraorbital nerve

The central nervous system consists of which of the following structures?

Brain and Spinal Cord

Which structures listed below are innervated by the vagus nerve?

Soft palate muscles

A maxillary canine is innervated by the:

Anterior superior alveolar nerve

An accumulation of neuron cells linked by synapses outside the central nervous system is called:

A ganglion

Which nerve supplies sensation to the posterior portion of the hard palate?

Greater palatine nerve

Which nerve exits the skull through the foramen ovale?

Mandibular nerve

Which list of terms correctly matches the more commonly used term?

Afferent nerve- sensory nerve

The trigeminal nerve provides the following innervation:

Sensory and motor

Which nerve is estimated to only be present in 28% of the population?

Middle Superior Alveolar nerve

When the mandibular nerve (V3) exits the cranium through the foramen ovale of the sphenoid bone, it then enters the:

Infratemporal fossa

Which nerve travels within the mandibular canal?

Inferior Alveolar Nerve

All of the following muscles are innervated by the trigeminal nerve EXCEPT:

Buccinator

Which pair of nerves merges posterior to the mental foramen to form the inferior alveolar nerve?

Incisive and mental nerves

The mandibular canine is innervated by the_________ nerve.

Incisive

All cranial nerves are part of the:

peripheral nervous system

The free nerve endings that pick up incoming signals and send them along toward the axon are called:

Dendrites

Which nerve provides motor innervation to the floor of the mouth?

Mylohyoid nerve

Tissues of the frontal region are sensory- innervated by the:

Opthalmic division of the trigeminal nerve

The body of the tongue, floor of the mouth, and lingual gingiva are all sensory innervated by the:

Lingual nerve

Which structures do the posterior alveolar nerve and its branches innervate?

Maxillary molars

Where is the trigeminal ganglion located?

Anterior surface of the petrous part of the temporal bone

Match the following muscle with the correct nerve innervation: Masseter

Trigeminal nerve- V3

Match the following muscle with the correct nerve innervation: Sternocleidomastoid

Spinal accessory nerve- XII

Match the following muscle with the correct nerve innervation:

Pharyngeal constrictors:

Vagus nerve (X)

Match the following muscle with the correct nerve innervation: Extrinsic tongue muscles

Hypoglossal nerve (XII)

Match the following muscle with the correct nerve innervation: Tensor veli palatini

Trigeminal nerve-v3

Which nerve is not part of the maxillary nerve (second division of the trigeminal nerve)?

Buccal nerve

What do the abducens and the trochlear cranial nerves have in common with each other?

They are both efferent nerves.

Tissues of the infraorbital region are sensory-innervated by the:

maxillary division (V2) of the trigeminal nerve

Afferent nervous system

Conveys sensory impulses to the PNS and CNS

Efferent nervous system

Conveys motor functions from the brain and spinal cord to organs and muscles

sympathetic nervous system

“fight or flight” division of the autonomic nervous system

Parasympathetic nervous system

“rest and digest” division of the autonomic nervous system

Central nervous system

interprets/computes PNS impulses; regulates emotions, intellect, organ functions, and homeostasis

Peripheral Nervous system

Subdivides directly into the Afferent and Efferent Nervous system

CN #1- CN #XII (12)

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Which nerve supplies sensory information for the soft palate?

Lesser palatine nerve

The brainstem of the central nervous system consists of what structures?

Medulla, Pons, and Midbrain

Where does the infraorbital nerve receive the posterior superior alveolar nerve in order to form the maxillary nerve?

Pterygopalatine fossa

Taste to the anterior 2/3 of the tongue

facial nerve

taste to the posterior 1/3 of the tongue

glossopharyngeal nerve

Sensation to the anterior 2/3 of the tongue

trigeminal nerve

motor to all of the tongue

hypoglossal nerve

The voluntary actions of the skeletal muscles are governed by the ______ nervous system.

peripheral

Cranial Nerve I:

Olfactory

Cranial nerve II:

Optic

Cranial nerve III

oculomotor

Cranial nerve IV

Trochlear

Cranial nerve V

Trigeminal

Cranial nerve VI

Abducens

Cranial nerve VII

Facial

Cranial nerve VIII

Vestibulocochlear

Cranial nerve IX

Glossopharyngeal

Cranial nerve X

Vagus

Cranial nerve XI

Spinal accessory

Cranial nerve XII

Hypoglossal

Which cranial nerve carries taste sensation for the body (anterior 2/3) of the tongue

Facial nerve

Which structures are innervated by the motor fibers within the mandibular nerve or third division of the trigeminal nerve?

Muscles of mastication

This nerve supplies sensory innervation to the mucosa of the cheek and buccal gingiva of the mandibular molars.

Buccal nerve

Within the center part of the nerve are the:

Core bundles

Which nerve innervates the mandibular molars?

Inferior Alveolar nerve

An efferent nerve in the nervous system is known to carry information:

Away from the spinal cord to the periphery of the body

Which nerve carries sensation from the maxillary canine?

Anterior superior alveolar nerve

Which nerve is part of the opthalmic nerve (V1)?

Nasociliary nerve

Which nerve and muscle pair is a correct match?

Hypoglossal nerve, intrinsic tongue muscle

To what division of the nervous system does a nerve cell belong if it leads from the eye to the brain carrying visual information?

Afferent nervous system

the sublingual salivary gland is located:

anterior to the submandibular gland

which nerve innervates both the submandibular and the sublingual salivary glands?

Chorda tympani nerve (branch of VII)

Which of the following nerves innervates the minor salivary glands?

Fifth and seventh cranial nerves

Which of the following glands is associated with Wharton duct?

Submandibular gland

Which of the following glands is associated with a nerve that synapses in the pterygopalatine ganglion?

Lacrinmal gland

There are _________ major pairs of salivary glands

3

Which of the following descriptive statements correctly concern the minor salivary glands of the oral cavity?

Can be found within the tissue of the soft palate.

From the following list of descriptions, select which description could be used correctly to describe the thyroid gland.

Secretes thyroxine

At which of the following bony junctions does the nasolacrimal duct begin?

Maxilla and lacrimal bone

Which of the following glands secrete only the serous type of saliva?

Parotid and von Ebner glands.

Which of the following glands listed below is not an exocrine gland?

Thyroid gland

Which of the following nerves travels through the parotid salivary gland but is not involved in its innervation?

Facial nerve

Which of the following glands has both superficial lobe and deep lobe sectioned by the facial nerve?

Parotid gland

Minor salivary glands can be found in all of the following EXCEPT:

Gingiva

The thyroid gland as part of the endocrine system is located:

Anterior to the larynx

Sensory innvervation to the floor of the mouth is delivered by the:

Mandibular nerve (CN. V3)

The facial nerve brings motor innervation to which group of muscles?

Muscles of facial expression

What cranial nerve supplies parasympathetic motor function to stimulate saliva production in the parotid gland?

Glossopharyngeal (IX)

Both the major and minor salivary glands are ______ glands.

Exocrine

Damage to which cranial nerve would affect a person’s ability to smile or frown?

Facial (CN VII)

Which statement describes the automatic nervous system?

It regulates involuntary functions such as heart rate, digestion, and respiration.

The glossopharyngeal (CN IX) supplies what innervation to the tongue?

Taste sensation to the posterior 1/3 of the tongue. Afferent Sensation to the posterior 1/3 of the tongue.

Why is the submandibular salivary gland or its duct more commonly involved in salivary stone formation than the other salivary glands?

Duct travels superiorly for considerable distance

Parasympathetic innervation to the parotid gland is supplied by the:

Glossopharyngeal nerve (CN.IX)

Orbicularis oris

Faical nerve (CN VII)

Temporalis

Trigeminal- V3

Anterior belly of the digastric (suprahyoid)

Trigeminal-V3

Intrinsic tongue muscles

Hypoglossal (CN XII)

Levator Veli palatini (soft palate muscle)

Vagus (CN X)

Parotid gland

Stensun’s duct

Minor salivary glands

Unnamed ducts

Submandibular gland

Wharton’s duct

Sublingual gland

Ducts of Rivinus