Visual System 1

Question 1

What do the anterior and posterior chambers contain?

Answer 1

Aqueous humor

Question 2

What is aqueous humor?

Answer 2

Nutrients for cornea and lens

Question 3

What is suspended by ligaments that are attached to the ciliary body?

Answer 3

Lens

Question 4

What humor is composed by gelatinous fluid and phagocytic cells?

Answer 4

Vitreous humor

Question 5

What is the optic disk composed of?

Answer 5

Axons of ganglia nerve cells

Question 6

I’d the optic nerve medial or lateral?

Answer 6

Medial

Question 7

Is the temporal retina medial or lateral?

Answer 7

lateral

Question 8

What is the function of the lens?

Answer 8

Distance

Question 9

What lubricates the eye, prevent frost damage of the cornea, moistens nasal cavity and helps to combat bacteria?

Answer 9

Tear fluid

Question 10

Part of the visual system is the reflective patch for nocturnal seen?

Answer 10

Tapetum

Question 11

What leaves the optic disk?

Answer 11

Optic nerve

Question 12

What happens to the lens when an object is viewed from a distance?

Answer 12

It flattens

Question 13

What happens to the lens when an object is viewed close up?

Answer 13

It’s more spherical, increasing its refractive power

Question 14

From far away is the ciliary muscle relaxed or contracted?

Answer 14

Relaxed

Question 15

From close up is the ciliary muscle relaxed or contracted?

Answer 15

Contracted

Question 16

When the lens contracts from viewing something close is the tension of the suspensory ligament increased or decreased?

Answer 16

Decreased tension

Question 17

When the lens relaxes from viewing something far away is the tension of the suspensory ligament increased or decreased?

Answer 17

Increased tension

Question 18

Increase tension of suspensory ligament equals what?

Answer 18

Lens flattens

Question 19

Decreased tension of suspensory ligament equals what?

Answer 19

Round lens