Motor system

Question 1

sensory adaptation

Answer 1

decrease in responsivenes during continued stimulation like heartbeat

Question 2

mechanoreceptors

Answer 2

sense physical deformation caused by pressure, touch, stretch, motion, sound

Question 3

chemoreceptors

Answer 3

receptors for solute concentration and specific molecule receptors

Question 4

electromagnetic receptors

Answer 4

detect various forms of electromagnetic energy such as visible light, electricity, and magnetism

Question 5

photoreceptors

Answer 5

electromagnetic receptors that detect the radiation we know as visible light often organized into eyes

Question 6

thermoreceptors

Answer 6

respond to hear or cold and are present in the upper dermis

Question 7

nociceptors

Answer 7

pain receptors; class of naked dendrites in the outer layer of skin of epidermis

Question 8

hypodermis

Answer 8

below the epidermis and dermis of skin

Question 9

statocysts

Answer 9

invertebrates; sensory organs that contain mechanoreceptors functioning in equilibrium

Question 10

statolith

Answer 10

invertebrate statocysts contain these grains of sand on ciliated receptor cells

Question 11

outer ear

Answer 11

consists of external pinna and auditory canal

Question 12

middle ear

Answer 12

3 small bones are hammer (malleus), anvil (incus), and stirrup (stapes) that transmits vibrations to oval window

Question 13

eustachian tubes

Answer 13

connects with pharynx and equalizes pressure between middle ear and atmosphere

Question 14

inner ear

Answer 14

labyrinth of fluid filled chambers within temporal skull bone

Question 15

semicircular canals

Answer 15

part of inner ear; functions in equilibrium

Question 16

cochlea

Answer 16

part of inner ear; organ of corti mechanoreceptor hair cells respond with auditory nerve after basilar membrane vibrates

Question 17

frequency

Answer 17

sensory neurons associated with basilar membrane regions send most action potentials along auditory nerve to specific auditory area