Anatomy Exam About Eyes And Retina

28 Questions | By Tseemore | Last updated: Mar 21, 2022 | Total Attempts: 939

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Anatomy Exam About Eyes And Retina - Quiz

The eye is our organ of sight. The eye has a number of components which include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous. The retina is a thin layer of tissue that lines the back of the eye on the inside. It is located near the optic nerve. The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition. Take this quiz to check your anatomical knowledge

Questions and Answers

1.

What is the cilium that connects the IS and OS made of?
2.

The sclera is adjacent to the retina.
- A.
  
  True
- B.
  
  False
3.

What is the function of the RPE?
- A.
  
  Prevent back scatter of light
- B.
  
  Nourishment for the retina
- C.
  
  Regeneration of photopigment
- D.
  
  A and c
- E.
  
  All of the above
4.

What is the main purpose of the outer limiting membrane (external liminting membrane)?
- A.
  
  Outer segment regeneration
- B.
  
  Sets up electrical charge across retina
- C.
  
  Barrier for selective wavelengths of light
5.

The inner plexiform layer contains synapses of the photoreceptors and bipolar cells
- A.
  
  True
- B.
  
  False
6.

Out of all the cells in the retina, what type has the most sub-types?
- A.
  
  Bipolar
- B.
  
  Ganglion
- C.
  
  Amacrine
- D.
  
  Horizontal
7.

Indicate what common features are found in all species in the anatomy of photoreceptors.
- A.
  
  Outer segment
- B.
  
  Inner segment
- C.
  
  Nucleus
- D.
  
  Synaptic terminal
8.

Cone OS is smaller than it's IS
- A.
  
  True
- B.
  
  False
9.

Rod OS is larger than its IS
- A.
  
  True
- B.
  
  False
10.

The nucleus in cones is closer to the IS than rods.
- A.
  
  True
- B.
  
  False
11.

The cone foot plate (pedicle) is much larger than rods foot plate (spherule)
- A.
  
  True
- B.
  
  False
12.

Photogiment discs have a high concentration of K inside
- A.
  
  True
- B.
  
  False
13.

Indicate the components of a disc.
- A.
  
  Lipoprotein
- B.
  
  Carbohydrate
- C.
  
  Visual pigment
- D.
  
  Glycoprotein
14.

How many different photopigments are there?
- A.
  
  1
- B.
  
  3
- C.
  
  4
15.

The function of the IS is:
- A.
  
  Energy production
- B.
  
  Homeostasis regulation
- C.
  
  Produce the disc membranes
16.

The cilium acts as a connection/shuttle between the OS and IS. What other function does it have?
- A.
  
  Generates photopigment
- B.
  
  Regenerates the OS
- C.
  
  Regenerates the IS
17.

The foveola contains which type of cells?
- A.
  
  Rods
- B.
  
  Cones
- C.
  
  Glial cells
- D.
  
  Oligodendrocytes
18.

The fovea contains:
- A.
  
  Rods
- B.
  
  Cones
- C.
  
  Oligodendrocytes
19.

The more eccentric we get from the fovea, the smaller the rods and cones become.
- A.
  
  True
- B.
  
  False
20.

There are 3 types of astrocytes and they are differentiated based on functional differences
- A.
  
  True
- B.
  
  False
21.

Where are astrocytes commonly found?
- A.
  
  Near blood vessels
- B.
  
  Near optic nerve
- C.
  
  Near fovea
22.

They are many oligodendrocytes in the retina
- A.
  
  True
- B.
  
  False
23.

What is the funciton of Muller cells in the retina?
- A.
  
  Physical support
- B.
  
  Control the extracellular enviornment
- C.
  
  Both
- D.
  
  Neither
24.

The Muller cells in the retina span from the internal limiting membrane to the inner pleixform layer.
- A.
  
  True
- B.
  
  False
25.

Middle wavelength cones form a martix and inbetween the matrix there are short and long wavelength cones
- A.
  
  True
- B.
  
  False