Histology Sensory Organs Ucfcom

Front 1

Identify the labels

Back 1

Look

Front 2

3 tunics of the eye and their contents:

Back 2

Fibrous tunic
--cornea (transparent)
--sclera (white)-Dense regular CT

limbus is between

Vascular tunic
--choroid
--cilliary body
--iris

Neural tunic
--retina

Front 3

Identify the labels

Back 3

A-retina
b-choroid
c-sclera

Front 4

What is this? Identify the labels

Back 4

Cornea of the eye
MN: EBSDEin "ebstein"

A-epithelium-stratified sqamous
B-bowman's membrane
C-endothelial cells
D-descemet's membrane

Front 5

How does the cornea get oxygen?

Back 5

It is avascular, so it must receive nutrients from diffusion through the aqueous humor

Front 6

Where is this? What is that hole?

Back 6

Corneosclera junction : limbus

SChlemm's canal-drains aqueous humor

Front 7

What does the choroid of the eye contain?

Back 7

vascular layer that includes capillaries and connective tissue, the innermost layer that separates it from the retina is the Brusch's membrane. It also contains melanocytes,

Front 8

What is this?

identify the labels

Back 8

Limbus area again

A-conjunctiva
b-sclera (covered in bulbar fascia)
C-cilliary body
d-cilliary processes

Front 9

What is this?

Back 9

The iris, it contains melanocytes and muscle tissue

Front 10

Name each layer 1-10

Back 10

1: pigment epithelium
2: photoreceptors
3: outer limiting membrane
4: outer nuclear layer
5: outer plexiform layer
6: inner nuclear layer
7: inner plexiform layer
8: ganglion
9 optic nerve
10: inner limiting membrane

Front 11

What is this? What is the arrow pointing at?

Back 11

Optic disk, central retinal artery

Front 12

What is this?

Back 12

ora serrata is the serrated junction between the retina and the ciliary body. This junction marks the transition from the simple non-photosensitive area of the retina to the complex, multi-layered photosensitive region. I

Front 13

What is this?

Back 13

Macula lutea/fovea centralis- only cones, no rods, best visual acuity in the eye

Front 14

What is this?

Back 14

Eye lid- tarsal glands secrete an oily substance, the arrow is pointing to an eye lash

Front 15

Which two layers detach in retinal detachment?

Back 15

The pigment epithelium (1) from the photoreceptor layer (2)

Front 16

What is this?

Back 16

Lacrimal gland,

similar to parotid gland, has tubular alveolar serous cells that secrete the tears, located in the upper lateral region of the orbit

Front 17

Identify the labels of what kind of papillae is found at each point.

Back 17

A-foliate
b-fungiform
c-filiform
d-vallate
e-foramen cecum and circus terminales

Front 18

Name each structure:

Back 18

A-fungiform
B-filiform
C-Vallate
D-foliate
E-von ebner gland

Front 19

Answer each with the letter that matches the characteristic:

1-has no taste buds
2-is present on the entire surface of the tongue
3-covered in strat squam epithelium
4-non keratinized strat squam epith
5-located on the posterior and lateral border of the tongue
6has von ebner glands opening on it

Back 19

1,2,3 =B
4=A
5=D
6=C

Front 20

What does a von Ebner gland secrete?

Back 20

serous solution that cleans out the groove so new things can be tasted

Front 21

What is the structure of a taste bud?

Back 21

oval in shape, with spindle cells inside of it, that have microvilli that project out through a taste pore and into the surrounding environments

Front 22

Where are taste receptors located?

Back 22

on the microvili of the taste bud cells

Front 23

What is this? Identify the labeled structures and their function:

Back 23

A-olfactory cells-bipolar neurons, allow the sense of smell

b=sustentacular cells-tall columnar cells with a microvilli border, nucelli are found superficial to the nuclei of the olfactory cells

c-basal cells-lie against the basal lamina, replace the basal and sustentacular cells

D- Bowman's glands-secretes odor binding protein

Front 24

Which concha has olfactory epithelium?

Back 24

Only the superior concha.

Front 25

Identify the labels:

Back 25

A-sustentacular cells
b-olfactory cells
c-basal cells
d-bowman's glands

Front 26

What is this?

What is the red arrow pointing at?

Back 26

Cochlea; spiral ganglion

Front 27

What is this?

Identify the labels?

Back 27

Cochlea

A-spiral ganglion
b-scala vestibuli
c-scala media
d-scala tympani
e-vestibular membrane
f-basilar membrane

Front 28

What is this?

Identify the labels?

Back 28

A-vestibular membrane
b-tectorial membrane
c-scala media
d-outer hair cell
e-inner hair cell
f-basilar membrane
g-scala tympani

Front 29

1. Which label points to the place that connects to the oval window to the helicotrema?

2. Which label points to the one space that is full of endolymph?

3. Which extends from the round window to the helicotrema?

Back 29

1. B
2. C
3. D

Front 30

What nerve runs down the center of the cochlea?

Back 30

Cochlear nerve.

Front 31

What type of cell is found between the inner and outer haif cells and has between it the inner tunnel?

Back 31

Pillar cell

Front 32

What is a flap of of glycosamino glycans that has the stereocilia of the hair cells embedded in it.

Back 32

Tectorial membrane

Front 33

A columnar cell that is attached to the basilar membrane and provides support to the hair cell?

Back 33

Phalangeal cell

Front 34

What differentiates frequencies in the cochlea?

Back 34

How far they travel on the tectorial membrane before passing through the scala media. Lower frequencies travel further.

Front 35

What are the three contents of the bony labyrinth?

Back 35

Semicircular canals
vestibule
cochlear

Front 36

What are the three contents of the membranous labyrinth?

Back 36

Semicircular ducts
Utricle saccule
Cochlear duct

Front 37

What is A?

What is B?

Back 37

A-Bony labyrinth

B-Membranous labyrinth