Special Senses

Question 1

List the 12 cranial nerves

Answer 1

• olfactory
• optic
• oculomotor
• trochlear
• trigeminal
• abducens
• facial
• vestibulocochlear
• glossopharngeal
• vagus
• spinal acessory
• hypoglossal

Question 2

What is the function of the olfactory nerve

Answer 2

Smell

Question 3

Describe the function of the optic nerve

Answer 3

Vision

Question 4

What is the function of the oculomotor nerve

Answer 4

Eye movement

Question 5

What is the function of the trochlear nerve in the eye

Answer 5

Inervates the superior oblique muscle

Question 6

What is the function of the trigeminal nerve

Answer 6

Innervates the muscles of mastication and provides general sensory to the face

Question 7

What is the function of the abducens muscle in the eye and which muscle does it innervate

Answer 7

Abducens muscle provides eye movement by inervating the lateral recuts

Question 8

What is the function of the facial nerve

Answer 8

Innervates the anterior 2/3 of the tongue

Question 9

What is the function of the vestibulocochlear nerve

Answer 9

Hearing and balance in the ear

Question 10

What’s the function of the glossopharngeal nerve

Answer 10

Involved in swallowing and taste and Innervates the posterior 1/3 of the tongue

Question 11

What’s the function of the vagus nerve

Answer 11

Wandering nerve - involved in parasympathetic nervous system

Heart and respiratory system

Question 12

What is the function of the spinal accessory nerve

Answer 12

Innervates neck muscles including sternocleidomastoid and trapezius muscles

Question 13

Describe the sclera of the eye

Answer 13

This is the white part of the eye ( outer layer) and is composed of fibrous and elastic tissue. This allows you to see when a person or animal is looking

Question 14

Describe the structure of the pupil

Answer 14

Darkened whole in the middle of the iris

Question 15

Describe the structure of iris

Answer 15

Smooth muscle structure which provides diameter of eye through 2 muscles

Question 16

Name the 2 muscles which help to increase the diameter of the iris

Answer 16

• sphincter pupillae
• dilator pupillae

Question 17

What happens in the condition of keratoconus

Answer 17

Thinning of the cornea causing the cone shape which causes blurred or double vision

Question 18

What happens if someone has jaundice

Answer 18

This causes the sclera to become yellow as well as blood disorder or liver pathologies

Question 19

In which gland are tears produced

Answer 19

Lacrimal

Question 20

What is the function of the lacrimal gland

Answer 20

Lubricates movement
Removes debris - washed lateral to medial
Tears dark into the nose

Question 21

List the bone of orbit

Answer 21

Palatine
Ethmoid
Lacrimal
Maxilla
Zygomatic
Sphenoid
Frontal

Question 22

Describe movement of the superior recuts muscle

Answer 22

Elevation of eye, medial rotation and abduction

Question 23

What is the function of inferior recuts

Answer 23

Depression of eye, addiction and lateral rotation

Question 24

Describe the function of medial recuts

Answer 24

Addicts the eyeball

Question 25

Describe the function of lateral recuts

Answer 25

Abducts the eyeball

Question 26

Describe the function of superior oblique

Answer 26

Depression of eyeball, abduction and medial rotation

Question 27

Describe the function of inferior oblique

Answer 27

Elevation, abduction and lateral rotation