Special Senses

Question 0

What two structures make up the Fiberous tunic

And describe the structures

Answer 0

Sclera - white; shape and support; muscle attachment points

Cornea - clear, anterior, focuses light

Question 1

What are the three tunics of the eye

Answer 1

Fiberous
Vascular
Retina

Question 2

The choroid, iris, and ciliary body belong to which tunic?

Answer 2

Vascular tunic

Question 3

Describe the functions of the structures of the vascular tunic

Answer 3

Choroid - blood vessels and melanin, black in color to absorb excess light
Iris - the colored portion of the eye with a hole in the center for the pupil
Ciliary body - ciliary muscle, suspensory ligaments which hold and adjust the lens

Question 4

Name and describe the portions of the retina

Answer 4

Pigmented epithelium
Neural layer 
 - photoreceptors pass info to 
 - bipolar cells pass to 
 - ganglion cells then to 
 - axons form CN 2

Question 5

What is the general function of the ear

Answer 5

Detect sound waves

Detect 3D movements and position relative to gravity

Question 6

What are the structures of the inner ear

Answer 6

Auricle pinna
External acoustic meatus
Tympanic membrane
- dividing line between external and middle ear

Question 7

The auditory ossicles (mallus, incus, and stapes) are part of which portion of the ear

Answer 7

Middle ear

Question 8

What are the inner parts of the ear

Answer 8

Oval window ( underneath the stapes)
- the stapes pushes and creates a fluid wave
Cochlea- sensory receptors for hearing
- receptor cells are called hair cells

Question 9

Is regards to the equilibrium, what is a vestibule

Answer 9

Hair cells that detect changes in position relative to gravity

Question 10

Semicircular canals detect what

Answer 10

3D rotations

Question 11

The combination of the vestibule and semicircular canals is called what

Answer 11

Vestibular apparatus