A1 - Eye

Question 1

optic nerve

Answer 1

visual impulses from retina to brain, creates blind spot

Question 2

sclera

Answer 2

white tough outer coat, maintains eye shape

Question 3

choroid

Answer 3

blood vessel and dark pigment that absorbs light

Question 4

iris

Answer 4

coloured, changes size based on light

Question 5

retina

Answer 5

has photoreceptors rods and cones

Question 6

rods

Answer 6

respond to low level of light

Question 7

cones

Answer 7

for seeing in detail + colour (RBG)

Question 8

cornea

Answer 8

protective, helps focus by bending light into pupil

Question 9

pupil

Answer 9

controlled by iris and permits light to enter

Question 10

lens

Answer 10

Focus light on retina 

Question 11

fovea centralis

Answer 11

most detailed vision due to high cone density

Question 12

order of light passing through

Answer 12

cornea, pupil, lens, retina, optic nerve

Question 13

diabetes mellitus

Answer 13

where a person consistantly has elevated blood sugar levels

Question 14

diabetes mellitus effects

Answer 14

• impacts kidneys ability to absorb water
• glucose in urine increases, increasing urine volume and causing dehydration

Question 15

Type 1 diabetes

Answer 15

can’t produce insulin so glucose can’t removed = glucose stays in blood stream causing high BS

Question 16

Type 2 diabetes

Answer 16

too much insulin cause insulin receptors to stop working = glucose not being removed from BS

Question 17

Diabetes insipidis

Answer 17

not enough ADH or kidneys don’t dont respond to ADH = exccessive pee

Question 18

HGH

Answer 18

increase gowth

Question 19

oxytocin

Answer 19

increase uterine + milk

Question 20

ACTH

Answer 20

increase cortisol

Question 21

PTH

Answer 21

increase calcium when low

Question 22

FSH

Answer 22

follicle stim

Question 23

LH

Answer 23

increase in E and T

Question 24

ADH

Answer 24

increase in water reabsorption

Question 25

PRH

Answer 25

increase in prolactin