As we wage, when does brain mass begin to decline?

As we wage, when does brain mass begin to decline?

A) early childhood
B) over the age of 80
C) early adulthood
D) over the age of 50


Answer: C

Damage to which of these cranial nerves would cause a person to have difficulty seeing objects close to her face?

Damage to which of these cranial nerves would cause a person to have difficulty seeing objects close to her face?

A) abducens
B) trochlear
C) oculomotor
D) optic


Answer: C

The lining of the ventricles develops from the

The lining of the ventricles develops from the

A) marginal layer cells
B) neural crest
C) ependymal layer cells
D) mantle layer cells


Answer: C

If a person is experiencing difficulties smiling, he may have damage in which cranial nerve?

If a person is experiencing difficulties smiling, he may have damage in which cranial nerve?

A) oculomotor
B) facial
C) trigeminal
D) accessory


Answer: B

Which ventricle is located in the middle of the thalamus?

Which ventricle is located in the middle of the thalamus?

A) third
B) fourth
C) first
D) second


Answer: A

If the only function of cranial nerve I is olfaction, then the nerve is to be classified as a (blank) nerve

If the only function of cranial nerve I is olfaction, then the nerve is to be classified as a (blank) nerve

A) mixed
B) sensory
C) motor
D) none of these


Answer: B

The cochlear branch of the vestibulocochlear (VIII) nerve terminates in which region of the brain?

The cochlear branch of the vestibulocochlear (VIII) nerve terminates in which region of the brain?

A) thalamus
B) medulla oblongata
C) hypothalamus
D) A and B


Answer: D

The bulk of the cerebellum is two halves called the cerebellar

The bulk of the cerebellum is two halves called the cerebellar

A) hemispheres
B) partitions
C) fissures
D) fossa


Answer: A

If the only function of the optic (II) nerve is vision, then the nerve is to be classified as a (blank) nerve

If the only function of the optic (II) nerve is vision, then the nerve is to be classified as a (blank) nerve

A) mixed
B) sensory
C) motor
D) none of these


Answer: B

What is a primary function of the facial nerve (VII)?

What is a primary function of the facial nerve (VII)?

A) movement of eyeballs
B) vocalization
C) tough, pain, thermal sensation from scalp, face, and oral cavity
D) taste


Answer: D

A pathologist is doing an autopsy. Where would she find the vestibulocochlear nerve?

A pathologist is doing an autopsy. Where would she find the vestibulocochlear nerve?

A) between the pons and the medulla oblongata
B) medial to the medulla oblongata
C) anterior to the pons
D) medial to the pons


Answer: B

Which branch of the trigeminal nerve travels through the superior orbit fissure?

Which branch of the trigeminal nerve travels through the superior orbit fissure?

A) maxillary
B) mandibular
C) ophthalmic
D) temporal


Answer: C

A person with damage to the hypoglossal nerve may have a hard time performing which function?

A person with damage to the hypoglossal nerve may have a hard time performing which function?

A) regulating blood pressure
B) eye movement
C) swallowing
D) hearing


Answer: C

The olfactory receptor cells are located where?

The olfactory receptor cells are located where?

A) olfactory bulbs
B) olfactory epithelium
C) cribiform plate
D) olfactory tracts

Answer: B

If the only function of the trochlear nerve is movement of the eyeballs, then the nerve is to be classified as a (blank) nerve

If the only function of the trochlear nerve is movement of the eyeballs, then the nerve is to be classified as a (blank) nerve

A) motor
B) mixed
C) sensory
D) none of these


Answer: A

At age 20, Dave's brain weighs about 1500 grams (3 pounds). Approximately what will his brain weigh by age 80?

At age 20, Dave's brain weighs about 1500 grams (3 pounds). Approximately what will his brain weigh by age 80?

A) 750 grams
B) 1400 grams
C) 1500 grams
D) 1100 grams


Answer: B

The hypoglossal nerve originates in the (blank) and supplies the muscles of the (blank)

The hypoglossal nerve originates in the (blank) and supplies the muscles of the (blank)

A) medulla oblongata; throat
B) pons; tongue
C) pons; throat
D) medulla oblongata; tongue


Answer: D

Motor axons that control the trapezius muscle originate from the

Motor axons that control the trapezius muscle originate from the

A) cerebellum
B) cervical spinal cord
C) pons
D) medulla oblongata


Answer: B

Motor impulses from the (blank) nerve exit the jugular foramen and control the sternocleidomastoid muscle of the neck.

Motor impulses from the (blank) nerve exit the jugular foramen and control the sternocleidomastoid muscle of the neck.

A) glossopharyngeal
B) hypoglossal
C) vagus
D) accessory


Answer: D

Which of the following structures feature sensory axons of the vagus nerve which pass through the jugular foramen to end in the pons and medulla oblongata?

Which of the following structures feature sensory axons of the vagus nerve which pass through the jugular foramen to end in the pons and medulla oblongata?

A) lower eyelid
B) taste buds of the anterior two-thirds of the tongue
C) baroreceptors of the carotid sinus
D) extrinsic muscles of the eyeball


Answer: C

Axons of the branchial motor neurons in the vagus nerve supply muscles belonging to which of the following?

Axons of the branchial motor neurons in the vagus nerve supply muscles belonging to which of the following?

A) small intestine
B) stomach
C) large intestine
D) pharynx


Answer: D

Axons of the cochlear branch sensory neurons extend to

Axons of the cochlear branch sensory neurons extend to

A) nuclei in the pons
B) the cerebellum
C) nuclei in the medulla oblongata
D) the spiral ganglion of the cochlea


Answer: C

Sensory axons of the facial nerve

Sensory axons of the facial nerve

A) arise from taste buds covering the posterior one-third of the tongue
B) pass to the geniculate nucleus
C) extend from the semicircular canals
D) pass through the superior orbital fissure


Answer: B

The ophthalmic branch of the trigeminal nerve

The ophthalmic branch of the trigeminal nerve

A) passes through the superior orbital fissure
B) supplies motor neurons for chewing
C) is the largest of the three trigeminal nerve branches
D) includes sensory axons from the palate and upper teeth


Answer: A

The trochlear nerve

The trochlear nerve

A) divides into superior and inferior branches
B) arises from the posterior aspect of the brain stem
C) controls extrinsic and intrinsic eye muscles
D) innervates the lateral rectus muscle


Answer: B