A&P2 Wk 5 Lab QUIZ

contains the sensory hair cells (mechanoreceptors) that convert fluid waves into bioelectrical signals (action potentials) for the brain to interpret.

cochlea

helps funnel sound from the external environment into the structures of the middle ear and plays a role in sound localization.

pinna

is the auditory ossicle attached to the tympanic membrane. It is often referred to as the “hammer.”

malleus

8

The cochlea

4

The incus

10

The external auditory canal (acoustic meatus)

6

The semicircular

contains smooth muscles that pull on suspensory ligaments to change the shape of the lens.

ciliary body

is the white, outer layer of the eye composed of fibrous, dense, avascular connective tissueO

sclera

is the highly vascularized mucous membrane that lubricates the inner surface of the eyelids.

conjunctiva

is filled with melanin and prevents glare. It has numerous blood vessels that supply part of the retina with oxygen and nutrients.

choroid

is the biconvex connective tissue that bulges or flattens to shift focus between images close up and far away to focus light from an observed object on back of the retina.

lens

move the eyeball.

extraocular eye muscles

The lacrimal gland

2

The ciliary body

13

The CN II

10

The extraocular eye muscles

1

The sclera

6

The iris

5