Chapter 16 A&P SB review- questions I answered incorrectly that are now on the to-learn list!

Place the structures of the vascular tunic in order from anterior to posterior Iris Choroid Ciliary body

1. Iris 2. Ciliary body 3. Choroid

What type of fluid is found in the anterior cavity of the eyeball?

Aqueous humor

Which structure of the eye absorbs light to prevent it from scattering within the eye?

Choroid

True or false: The eye is spherical, measuring about 5 centimeters in diameter, and most of it is receded into the orbit of the skull.

False: The eye is about 2.5 cm

The retina is the ______ layer of the eye wall.

Internal

What structure is the dividing line between the anterior and posterior chambers?

Iris

The far surrounding the eye is the

Orbital or periorbital

Aqueous humor is secreted into the _________ chamber before traveling to the _________ chamber of the eye.

Posterior, anterior

What structure makes up the posterior 5/6 of the fibrous tunic?

Sclera

Sensory receptors in which structures help monitor and adjust our equilibrium? Multiple select question. cochlea utricle auditory tube semicircular ducts saccule

The vestibular apparatus: utricle semicircular ducts saccule

True or False: You can do this

True

True or False: You know more than you think you do

True

True or false: Your hard work will pay off

True

True or false: The primary purpose of the eyebrows is to keep sweat out of the eyes.

True

True or false: The primary purpose of the eyelashes are to keep debris out of the eye.

True

What structure is filled with pigment from melanocytes?

choroid

The auditory tube is normally ______.

closed

As we adjust to low light, our ______ becomes nonfunctional and it may take ______ for rhodopsin to become regenerated sufficiently so that you can see well in low-light conditions.

cones; 20-30 minutes

What type of receptor is found in the mucous membranes?

exteroceptors

When the photoreceptors stop __________ the bipolar cells, the bipolar cells can then release their neurotransmitter that binds to receptors on the ganglion cells.

inhibiting or blocking

Optic tracts extend to which structures after they leave the optic chiasm?

lateral geniculate nucleus of the thalamus, and the superior colliculi

Tactile receptors are a type of ______.

mechanoreceptor

Where are photoreceptors located?

neural layer of the retina

A lack of photoreceptors in this structure creates the "blind spot"?

optic disc- because that is where the cranial nerve is

The vestibule contains two structures, the utricle, and

saccule

When a figure skater does a lengthy spin on the ice, it is the sensory receptors in her ______ canals of the inner ear that are informing her brain about the position of her moving head.

semicircular

Taste buds are found on the tongue and ______.

soft palate

What is the most numerous type of receptor?

tactile receptors

In the eye, the __________ humor is gelatinous

vitreous

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Order these structures from superficial to deep. Start with the outermost structure first. Sclera neural layer of retina Choroid Pigmented layer of retina

1. Sclera 2. Choroid 3. Pigmented layer of the retina 4. Neural layer of the retina

The vascular tunic of the eye is also called the ______.

Uvea

What type of fluid is found in the posterior cavity of the eyeball?

Vitreous humor

Your most challenging concepts Describe the retina and vitreous chamber of the eye. Describe the effect of basilar membrane movement. Describe tactile receptors.

Yes! And you will ace this test! Review, review, review!

Who is going to do great on their exam?

You are!!

Which are the correct names for the tube that connects the middle ear to the nasopharynx? Multiple select question. auditory tube external auditory canal eustachian tube pharyngotympanic tube

auditory tube eustachian tube pharyngotympanic tube

When the _______ membrane moves, the __________ the spiral organ hair cells distort because they are anchored by the tectorial membrane.

basilar, stereocilia