Sensory Nervous System

Question 1

Mechanoreceptors

Answer 1

Detect stretching and pressure

Question 2

Thermoreceptors

Answer 2

Detects tempature inside and outside the body

Question 3

Nociceptors

Answer 3

Chemicals released when tissue is damaged and pain

Question 4

Chemoreceptors

Answer 4

Detects changes in chemical concentrations in body

Question 5

Photoreceptors

Answer 5

In retinal layer of eye that detects lights

Question 6

Sensory nerve

Answer 6

Transmits potentials to the brain

Question 7

Somatic senses

Answer 7

Tactile sensations like touch, pressure, vibration, itch and tickle

Question 8

Meissner’s corpuscles

Answer 8

Light touch

Question 9

Merkels corpuscle

Answer 9

Touch and light pressure

Question 10

Free nerve endings

Answer 10

Pain, temperature and light touch

Question 11

Pacinian corpuscle

Answer 11

Deep touch deep pressure and fast vibrations

Question 12

Ruffini corpuscle

Answer 12

Sustained pressure

Question 13

Chemoreceptors

Answer 13

5 types: Sweet salty sour bitter and umami (bitter is most sensitive)

Question 14

Cranial nerves involved in taste

Answer 14

VII and IX

Question 15

Chemoreceptors

Answer 15

Olfaction or smell and cranial nerve I and to the limbic system and linked to emotions and memories

Question 16

Palpebrae

Answer 16

Eyelids

Question 17

Conjunctiva

Answer 17

Mucus membrane that covers inner surface of the eyelid

Question 18

Lacrimal apparatus

Answer 18

Ducts that produce tears

Question 19

Extraocular muscles

Answer 19

Muscle that controls movement of the eye

Question 20

Meibomian glands

Answer 20

Produce oil that lubricates the eye

Question 21

The fibrous tunic of eye

Answer 21

• protective layer of eye
• sclera: white protective layer
• cornea: anterior part of fibrous tunic
• cornea

Question 22

The vascular tunic of eye

Answer 22

Middle pigmented layer

• contains choroid and ciliary
• iris

Question 23

The neural tunic

Answer 23

Innermost layer of eye and contains photoreceptors

- retina

Question 24

Outer ear

Answer 24

• pinna
• external auditory canal
• funnel to direct soundwaves

Question 25

Middle ear

Answer 25

- tympanic cavity that vibrates when sound waves hit it - malleus is first bone - incus is middle - ossicles

Question 26

Inner ear

Answer 26

Labyrinth bony chamber that is filled with fluid - cochlea - perilymph - semicircular canals - vestibular

Question 27

Myopia

Answer 27

Nearsightedness (cannot see far away)

Question 28

Hyperopia

Answer 28

When the eyeball is too short and near vision is affected