Chapter 16 Flashcards Preview

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Flashcards in Chapter 16 Deck (30):
1

Nervous system structures that detect stimuli to provide information about internal and external environments

Sensory receptors

2

Convert stimulus energy into electrical energy

Transducers

3

Contain channels that open in response to stimuli other than neurotransmitters or voltage change

Modality gated channels

4

Stimulus we are conscious of

Sensation

5

Form of stimulus

Modality

6

What is modality determined by?

Area of brain signal is sent, route of transmission

7

Detect chemicals

Chemoreceptors

8

What are chemoreceptors used for?

Gustation, olfaction, concentration of molecules in internal fluids

9

Respond to distortion in plasma membrane

Mechanoreceptor

10

What are mechanoreceptors used for?

Touch, pressure, vibration, proprioception, equilibrium, stretch of organs

11

Detects change in temperature

Thermoreceptors

12

Where are thermoreceptors located?

Skin, hypothalamus

13

Light receptors in retina of the eye

Photoreceptors

14

What are the 2 types of photoreceptors?

Rods and cones

15

Dim-light and peripheral vision receptors

Rods

16

Color receptors

Cones

17

Respond to pain

Nocioceptors

18

Where on the body or environment the stimulus is originating

Location

19

Area of single neurons detection

Receptive field

20

Smaller receptive field = ____ precise the perception

More

21

How strong the stimulus is

Intensity

22

How long stimulus is present

Duration

23

Slow/limited adaptation

Tonic

24

What are some examples of tonic receptors?

Pain, light, proprioception

25

Fast adaptation

Phasic

26

What are some examples of phasic receptors?

Pressure, temperature

27

What are the 2 classifications of sensory receptors?

General and special

28

Located on skin and joints; provides information about pressure, pain, temperature, vibration, proprioception

Somatic

29

Located in walls of internal organs; provides information about smooth muscle, chemical changes, temperature, and pain

Visceral

30

Located in specialized locations in the head for senses such as smell, taste, hearing, balance

Special senses