Sight

Question 1

Posterior Cavity:

Answer 1

Vitreous body, jelly holding retinal layer in place

Question 2

Anterior Cavity:

Answer 2

Aqueous humor, watery solution similar to CFS

Question 3

Fibrous Tunic:

Answer 3

Sclera (white of the eye), Cornea (clear window for vision)

Question 4

Vascular Tunic:

Answer 4

Choroid, Iris, Ciliary Body

Question 5

Neural Tunic:

Answer 5

Retina, Optic Nerve

Question 6

Iris:

Answer 6

Controls amount of light let into the eye with constrictor and dilator muscle via the autonomic nervous system

Question 7

Ciliary Body:

Answer 7

Alters the shape of the lense with Ciliary muscle and suspensory ligaments

Question 8

Retinal:

Answer 8

Retinal pigment epithelium, which absorbs light and phagocytises dead photoreceptors.

Question 9

Photopigment:

Answer 9

Detects light with opsin and retinal. Retinal changes conformation when light is absorbed

Question 10

Photoreceptor:

Answer 10

Synaptic terminal, inner segment (cellular machinery), and outer segment, which contains photopigments in membranous discs

Question 11

Bipolar Cells:

Answer 11

Synapse between photoreceptor and ganglion cells

Question 12

Ganglion Cells:

Answer 12

Sensory neurons which take the information to the brain