Lab Exam 2

Question 1

Which cranial nerve is responsible for sense of smell?

Answer 1

Olfactory nerve - CN I

Question 2

Which cranial nerve is responsible for sight?

Answer 2

Optic nerve - CN II

Question 3

Which cranial nerve is responsible for motor to 4 extra-ocular muscles; superior inferior and medial rectus and inferior oblique and parasympathetic to sphincter pupillae and ciliary muscles?

Answer 3

Oculomotor nerve - CN III

Question 4

Which cranial nerve is motor to superior oblique muscle?

Answer 4

Trochlear nerve - CN IV

Question 5

Which cranial nerve is responsible for sensory of the face and nasal/oral cavities; motor to the muscles of mastication?

Answer 5

Trigeminal nerve - CN V

Question 6

Which cranial nerve provides motor innervation to the lateral rectus muscle?

Answer 6

Abducent nerve - CN VI

Question 7

Which cranial nerve is responsible for sense of taste for the anterior 2/3rds of tongue, motor to the muscles of facial expression, parasympathetic to lacrimal, nasal, palatine, submandibular and sublingual glands?

Answer 7

Facial nerve - CN VII

Question 8

Which cranial nerve is responsible for balance and hearing respectively?

Answer 8

Vestibulocochlear nerve - CN VIII

Question 9

Which structure is a major lambic system output tract of the hippocampus? It also is necessary for memory consolidation because damage to this structure results in anterograde amnesia.

Answer 9

Fornix

Question 10

The inability to form new memories

Answer 10

Anterograde amnesia

Question 11

Which structure is part of the basal nuclei/basal ganglia, and is involved in learning and motor control, speech articulation, reward via goal-directed behaviors, and addiction.

Answer 11

Putamen

Question 12

Which structure of the basal ganglia enlarges with addictive behaviors such as cocaine addiction?

Answer 12

Putamen

Question 13

Fan like white fibers radiating above the internal capsule connecting to the cerebral cortex.

Answer 13

Corona radiata

Question 14

Also known as the accessory oculomotor nucleus

Answer 14

Edinger-Westphal nucleus

Question 15

This nucleus provides parasympathetic pre-ganglion is to the ciliary ganglion for the pupillary light reflex and accommodation responses of the lens

Answer 15

Edinger-Westphal Nucleus aka accessory occulomotor nucleus

Question 16

Term for constriction of the ciliary body to make the lens rounder to see near objects

Answer 16

Accommodation

Question 17

This nucleus senses proprioception from the muscles of mastication in the jaw. It also functions to prevent biting down hard enough to lose a tooth

Answer 17

Mesencephalic nucleus of the trigeminal nerve

Question 18

This nucleus receives tactile discrimination and pressure sensations from the face

Answer 18

Chief sensory nucleus of the trigeminal nerve

Question 19

Via CN VII this nucleus supplies the submandibular, sublingual, lacrimal, nasal and palatine glands

Answer 19

Superior salivatory nucleus

Question 20

Via cranial nerve IX, supplies the parotid gland

Answer 20

Inferior salivatory nucleus

Question 21

These structures are necessary for the recollective memory formation; and are connected to the thalamus and hippocampus.

Answer 21

Mammillary bodies

Question 22

Significant B-1/Thiamine deficiency due to alcoholism results in Wernicke’s-Korsakoff syndrome which damages the ____ _____and the patient develops anterograde amnesia.

Answer 22

Mammillary bodies

Question 23

This structure is involved in goal-directed behaviors as the cerebral cortex sends it sensory information as to body position.

Answer 23

Caudate nucleus

Question 24

Which two structures make up the corpus striatum?

Answer 24

Caudate nucleus and lentiform nuclei

Question 25

These structures contain ascending sensory tracts and descending motor tracts

Answer 25

Cerebral peduncles

Question 26

Visual area of the thalamus

Answer 26

Lateral geniculate body

Question 27

The optic radiations connect this structure with the primary visual cortex. This structure is part of the visual pathway leading to the occipital lobe

Answer 27

Lateral geniculate body

Question 28

This structure is part of the auditory pathway, ultimately leading to the temporal lobe

Answer 28

Medial geniculate body

Question 29

Passageway for axons between the cerebellum and midbrain

Answer 29

Superior cerebellar peduncle

Question 30

Passageway for axons between the cerebellum and pons

Answer 30

Middle cerebellar peduncle

Question 31

Passageway for axons between the cerebellum and medulla oblongata

Answer 31

inferior cerebellar peduncle