MODULE 6 PNS

Question 1

this nerve is just sensory = smell

Answer 1

olfactory

Question 2

this nerve is sensory only = vision

Answer 2

optic

Question 3

nerve is motor only = movement of eye

Answer 3

oculomtor nerve

Question 4

nerve is motor only = movement of eye

Answer 4

trochlear nerve

Question 5

nerve sesnory for forehead, eye, upper jaw, lower jaw, and motor is muscles of mastication

Answer 5

trigeminal nerve - three divsion

Question 6

this nerve is motor only - movement of eye

Answer 6

abducens

Question 7

this nerve sensory is taste for 2/3 tongue, and motor is muscle of facial expression, tear and slaiveray glands

Answer 7

facial nerve

Question 8

nerve is sensory only - for equilibrium and hearing

Answer 8

vestibulochlear nerve

Question 9

this nerve is sensory innervation of phaynzy, tast posteropr 1/2, and motor = pharnzym nuscles, parasym inner of salivary galnds

Answer 9

glossopharyngeal nerve

Question 10

this nerve sensory innervation of larynx, and motor is for phaynx and larynx muscles, innervatio thoracic and abdominal organs

Answer 10

vagus

Question 11

this nerve is motor only - trapezius and sternocleidomastoid muscles

Answer 11

accessory nerve

Question 12

muscle is only motor = muscles of tongue

Answer 12

– HYPOGLOSSAL NERVE

Question 13

ANS aka the

Answer 13

visceral motor system

Question 14

neuron has its cell body within the C NS. The axon enters into the P N Sand
travels to the autonomic ganglion.

Answer 14

The preganglionic

Question 15

The ___is where the preganglionic and postganglionic neurons meet and
communicate. It is located in the P N S.

Answer 15

autonomic ganglion

Question 16

The _____neuron is entirely in the P N S. Its cell body is in the autonomic ganglion, while
its axon travels to the target organ.

Answer 16

postganglionic

Question 17

This gland produces tears, which keep the cornea, or outside surface of the eyeball, moist and clean.

Answer 17

lacrimal gland

Question 18

The upper eyelid contains the ___muscle and orbicularis oculi muscle, which
control the opening and closing of the eyelid, respectively.

Answer 18

levator palpebrae superioris

Question 19

of the eye this cavity is composed of the anterior and posterior chambers, both of which are filled with
aqueous humour (watery type fluid).

Answer 19

The anterior cavity

Question 20

separates the anterior cavity of the eye from the posterior cavity.

Answer 20

The lens

Question 21

The____ is the innermost layer of the eye which consists of the neural layer, optic disc,
macula, and C NI I(optic nerve). This layer is also known as the .

Answer 21

sensory tunic, retina

Question 22

The vascular layer (the uveal tract) is the middle layer of the eye and is made up of the

Answer 22

choroid, the
ciliary body, and the iris.

Question 23

The fibrous tunic is the outermost layer of the eye and has two portions located internally and
externally to the lens inc

Answer 23

sclera (white), and cornea(allow light transmission)

Question 24

Small bones located in the middle ear.

Answer 24

ossicles

Question 25

chamber in temporal bone

Answer 25

tympanic cavity

Question 26

Areas at which the middle ear connects to the inner ear.

Answer 26

round and oval windows

Question 27

Connects the middle ear to the nasopharynx.

Answer 27

Eustachian Tubes

Question 28

The most lateral ossicle that is attached to and behind the tympanic membrane.

Answer 28

malleus - hammer

Question 29

Sits between the malleus and the stapes.

Answer 29

incus, anvil

Question 30

The stapes is the smallest bone and sits in the oval window. It is about one-third of the mass of the
other ossicles.

Answer 30

Stapes (Stirrup)

Question 31

inner - Contains the receptors for equilibrium

Answer 31

vestibular apparatus

Question 32

Contains the receptors for hearing. It looks like a seashell

Answer 32

cochlea

Question 33

Both the cochlea and the vestibular apparatus are structured as two channels in the bone, called

Answer 33

labyrinths: the membranous and bony labyrinths.

Question 34

The Semicircular Canals detect

The Utricle and Saccule are responsible for detecting

Answer 34

rotational movement., positional movement.

Question 35

The cochlea contains the receptors for ___. A cross section of the cochlea reveals that this
structure is composed of three ducts:

Answer 35

hearing, the vestibular duct, the tympanic duct, and the cochlear duct.

Question 36

The Organ of Corti is made up of ___________that rest on a basilar membrane. When
the membrane is moved by ______, the hair cells fire an impulse, which is sent to the via ____ for interpretation.

Answer 36

specialized cochlear hair cells, sound waves, brain via C N
V I I I