Senses & perception

Question 1

What cornea do?

Answer 1

Bends light to help the eye focus

Question 2

What pupil do?

Answer 2

Admits and regulates the flow of light to the retina

Question 3

What iris do?

Answer 3

Controls how much light the pupil lets in

Question 4

What lens do?

Answer 4

The lens works together with the cornea to focus light correctly on the retina

Question 5

What retina do?

Answer 5

Photoreceptors in it turn the light into electrical signals

Question 6

What optic nerve do?

Answer 6

Send signals to the brain

Question 7

What three types of neurons are in the retina?

Answer 7

Photoreceptors, interneurons and ganglion cells

Question 8

What rods do?

Answer 8

Allowing you to see in dim light

Question 9

What cons do?

Answer 9

Pick up fine detail and color

Question 10

What three types of cons people eye has?

Answer 10

Green, red, blue

Question 11

What tympanic membrane do?

Answer 11

Makes waves

Question 12

What hair cells do?

Answer 12

Make electrical signals from waves

Question 13

What taste buds do?

Answer 13

Detect taste and send signals to cranial nerves

Question 14

What olfactory bulbs do?

Answer 14

Detect taste and send signals to cerebral cortex

Question 15

How we call myelinated nerve fibers with thick axon?

Answer 15

A-beta fibers

Question 16

How we call thin,
unmyelinated axons?

Answer 16

C fibers

Question 17

What nociceptors do?

Answer 17

Detect signals from damaged tissue or the threat of damage

Question 18

What Pacinian and Meissner corpuscles do?

Answer 18

Sense of vibration and flutter

Question 19

What Merkel’s disk do?

Answer 19

Sense of pressure

Question 20

What Ruffini endings do?

Answer 20

Respond to slowly changing
indentations

Question 21

Which area of brain is responsible for touch?

Answer 21

Somatosensory cortex

Question 22

Which areas of brain are responsible for pain?

Answer 22

Somatosensory cortex, anterior cingulate cortex and insular cortex