The Senses

Question 1

What type of receptor is involved in both smell and taste?

Answer 1

chemoreceptor

Question 2

How do you know smell and taste are closely related?

Answer 2

when you have a cold, you cannot taste your food

Question 3

The semicircular canals and the two tiny sacs behind them help to monitor what?

Answer 3

body position and balance

Question 4

The fluid filled structure in the ear that sends information to the brain about sound is the

Answer 4

cochlea

Question 5

What are the functions of rods?

Answer 5

to detect light (black and white)

Question 6

What are the functions of cones?

Answer 6

to detect color

Question 7

The part of the eye that contains the photoreceptor cells is called the?

Answer 7

retina

Question 8

Where in your body are sensory receptors located?

Answer 8

found mostly in the skin and in some other areas

Question 9

The main type of touch receptor is called?

Answer 9

mechanoreceptor

Question 10

What can mechanoreceptors detect?

Answer 10

pressure, vibration, texture

Question 11

Where would you find a higher density of mechanoreceoptors?

Answer 11

in more sensitive areas (hands, face)

Question 12

What part of the brain is the incoming tactile information sent to?

Answer 12

primary somatosensory cortex (post central gyrus)

Question 13

What is a homunculus?

Answer 13

picture depicting someones most sensitive areas

Question 14

Which type of receptor detects temperature?

Answer 14

thermoreceptor

Question 15

Where are thermoreceptors located?

Answer 15

skin and hypothalamus

Question 16

What are the thermoreceptors in the hypothalamus detecting

Answer 16

blood temperature

Question 17

Why are heat receptors located more superficial?

Answer 17

so that you recognize something hot fast

Question 18

Which type of receptor detects pain?

Answer 18

nociceptors

Question 19

What do nociceptors respond to?

Answer 19

pain from a physical injury or chemicals that are released as a result of inflammation or infection

Question 20

Where are nociceptors located?

Answer 20

all over your body, EXCEPT your brain!

Question 21

What do taste buds detect?

Answer 21

salt, sweet, sour, bitter, savory (unami)

Question 22

What types of foods may be detected by the unami taste buds?

Answer 22

foods with MSG (chinese food, fast food), meat, cheese

Question 23

What are the two main functions of the ear?

Answer 23

hearing and balance

Question 24

Which receptors detect both hearing and position?

Answer 24

mechanoreceptors

Question 25

What is sound?

Answer 25

vibrations moving through the air

Question 26

What kind of vibrations can your ear distinguish?

Answer 26

pitch and loudness

Question 27

What happens when sound waves enter your ear?

Answer 27

they vibrate your eardrum

Question 28

What happens when your eardrum vibrates?

Answer 28

it vibrates the 3 small bones in your ear which then bump into your cochlea and cause pressure waves in the fluid of the cochlea

Question 29

Name the 3 bones of your inner ear

Answer 29

malleus, incus, stapes

Question 30

What happens when the fluid in the cochlea moves?

Answer 30

it moves tiny little cells in the cochlea which then generate an action potential that gets sent to the brain

Question 31

What happens in your ear when you change position?

Answer 31

the fluid in the semi-circular canals moves, which in turn moves tiny hairs, which in turn send an action potential to your brain regarding your position

Question 32

What are the basic structures of the eye from superficial to deep?

Answer 32

cornea, aqueous humor, iris, pupil, lens, vitreous humor, retina, optic nerve