the five senses

Question 1

what is the organ of sight?

Answer 1

the eye

Question 2

retina contains…

Answer 2

photoreceptors

• cones (color)
• rods(light)
• rods and cones concentrate on the macula

Question 3

lens…

Answer 3

refracts light and focuses it onto the RETINA by CHANGING SHAPE

Question 4

cornea…

Answer 4

refracts light and focuses it on RETINA, but it is FIXED

Question 5

the cornea is covered by…

Answer 5

Conjuncitiva, which protects the eye

Question 6

what protects the eye

Answer 6

conjunctiva

Question 7

Iris

Answer 7

is the pigmented muscular layer, which controls the amount of light that enters the eye that enters through the pupil.

Question 8

what controls the amount of light that enters through the pupil?

Answer 8

iris

Question 9

what is the organ of smell

Answer 9

the nose

Question 10

where do olfactory receptors reside?

Answer 10

in the nasal mucosa layer of the roof of nasal cavity

Question 11

ciliated cells in the nose detect…

Answer 11

chemicals that get dissolved in the mucus

Question 12

organ of taste is..

Answer 12

the tongue

Question 13

5 tastes, that taste buds can detect

Answer 13

• sweet
• salty
• sour
• bitter
• umami(savoury)

Question 14

organ of hearing

Answer 14

ear, more specifically the cochlea

Question 15

sound waves travel up…

Answer 15

the ‘external auditory canal’ to the ‘tympanic membrane(aka.ear drum)’

Question 16

the tympanic membrane…

Answer 16

vibrates to magnify the sound waves across the ‘ossicles’ of the middle ear

Question 17

the oval window transmits vibrations to…

Answer 17

the cochlea, which contains ciliated cells that convert the waves into nerve impulses at the ‘organ of corti’

Question 18

cochlea

Answer 18

contains ciliated cells that convert the waves into nerve impulses AT the ‘organ of corti’

Question 19

what are the organs in the ear that aid in balance?

Answer 19

‘vestibule’ and ‘canals’

Question 20

what is the organ of touch?

Answer 20

the skin

Question 21

touch can be divided into which different sensations

Answer 21

touch, pain, heat, cold, pressure, vibration

Question 22

what receptor senses touch?

Answer 22

meissner’s corpuscles

Question 23

what receptor senses pressure?

Answer 23

Pacini’s corpuscles

Question 24

what receptor senses changes in temperature?

Answer 24

Ruffini’s corpuscles

Question 25

Krause’s corpuscles sense..

Answer 25

cold, but there is some sources that suggest it senses vibration and pressure

Question 26

what receptor senses potentially damaging stimuli

Answer 26

Nocireceptors

Question 27

what receptor senses pain

Answer 27

nocireceptors