Ch 50 Pt 1

Question 1

Transduction

Answer 1

Conversion of incoming stimuli into an electrical signal

Afferent neurons

Question 2

Mechanoreceptors

Answer 2

Mechanical energy

Pressure, vibration, gravity, acceleration, sound

Question 3

Thermoreceptors

Answer 3

Changes in temp

Question 4

Nociceptors

Answer 4

Respond to noxious stimuli (pain)

Question 5

Chemoreceptors

Answer 5

Respond to chemicals

Taste, smell

Question 6

Electromagnetic receptors

Answer 6

Light or electromagnetic fields

Vision

Question 7

Neuronal receptors

Answer 7

Receptor is afferent neuron

Question 8

Non-neuronal receptors

Answer 8

Regulate afferent receptors

Question 9

Free nerve ending

Answer 9

Pain, warm, cold

Question 10

Meisseners Or Pacinian corpuscle

Answer 10

Displacement, vibration

Question 11

Merkel disks

Answer 11

Light touch

Question 12

Ruffini ending

Answer 12

Stretch of skin

Question 13

What is a population code

Answer 13

Greater stimulus activates more receptors

Question 14

Statocyst

Answer 14

Sensory organ

Question 15

Statoliths

Answer 15

Particles that move and settle to the lowest point distort the membranes membranes of the Ciliated Receptor Cells causing depolarization

Question 16

Some insects have specialized ears

Answer 16

With tympanic membrane covering an air filled chamber

Question 17

Insect hearing

Answer 17

Sound wave strikes tympanic membrane

Vibrates receptor cells

Sends signal to brain

Question 18

Sound

Answer 18

Perception of energy carried in sound waves

Question 19

Pitch

Answer 19

High vs low frequency

Question 20

Loudness

Answer 20

High vs low intensity (decibels)

Question 21

Outer ear

Answer 21

Pinna

Captures and focuses sound

Question 22

Middle ear

Answer 22

Eardrum/tympanic membrane

Contains malleus, incus and stapes

Oval window- moves fluid

Question 23

Inner ear cochlea

Answer 23

Fluid filled

Question 24

Inner ear organ of corti

Answer 24

Vibrates as the same frequency as incoming sound