The Brain and The Eye

Question 1

Function of cerebral cortex

Answer 1

responsible for consciousness, memory, intelligence, language

Question 2

function of cerebellum

Answer 2

responsible for muscle coordination and movement

Question 3

function of hypothalamus

Answer 3

temperature control

Question 4

function of medulla

Answer 4

controls unconscious activities like breathing and heart rate

Question 5

function of cornea and lens

Answer 5

to focus images

Question 6

function of retina

Answer 6

light is focussed on retina

Question 7

how will eye respond to:
DIM LIGHT

Answer 7

radial muscles- contract
circular muscles- relax

-relaxed pupil means more light enters eye

Question 8

how will eye respond to:
BRIGHT LIGHT

Answer 8

radial muscles (pupil)- relax
circular muscles (iris)- contract

contracted pupil means less light enters eye

Question 9

How will eye focus on a NEAR object

Answer 9

ciliary muscles:contract
suspensory ligaments:loosen
-(muscle tension: low)
lens shape: thicker
refraction: more (strongly)

Question 10

How will eye focus on a DISTANT object

Answer 10

ciliary muscles: relax
suspensory ligament: contract
(muscle tension: high)
lens shape: thinner
refraction: Slightly