Neuroanatomy; Somatosensory

Front 1

This type of afferent fiber changes its firing rate only when the stimulus changes:

Back 1

Rapidly Adapting

Front 2

This type of affent fiber changes its firing rate throughout the duration of a stimulus:

Back 2

Slowly adapting

Front 3

Two types of sensory best represented by rapidly adapting receptors:

Back 3

Motion and Vibration

Front 4

Type of sensory best represented by slowly adapting fibers:

Back 4

Static position

Front 5

The type of nerve finber that is closely associted with specialized cells that contribute to transduction by making the fiber receptive to certain types of stimuli

Back 5

encapsulated

Front 6

Which receptor type plays a major role in vibration and texture sense?

Back 6

Meissner

Front 7

Which receptor type plays a major role in perception of form and edges?

Back 7

Merkel

Front 8

Which receptor type plays a major role in stretch perception?

Back 8

Ruffini

Front 9

Which receptor type plays a major role in perception of muscle tension?

Back 9

Golgi Tendon Organ

Front 10

Which encapsulated receptor has a small receptive field size and rapid adaptation?

Back 10

Meissner

Front 11

Which type of encapsulated fiber has a small receptive field and is slowly adapting?

Back 11

Merkel

Front 12

Which two receptor types have a small receptive field?

Back 12

Meissner & Merkel

Front 13

Which encapsulated receptor type has a large receptive field and rapidly adapts?

Back 13

Pacini

Front 14

Which encapsulated receptor type has a large receptor field and slowly adapts?

Back 14

Ruffini

Front 15

Which two receptor types are slowly adapting?

Back 15

Merkel & Ruffini

Front 16

Which two recepor types have a large receptive field?

Back 16

Pacini and Ruffini

Front 17

Which type of reception relies on receptors in joints, tendons and muscles?

Back 17

proprioception

Front 18

Which two receptor types in the joins indicate joint position and motion?

Back 18

Pacini and Ruffini

Front 19

This type of receptor is neither encapsulated nor associated with specialized receptor cells:

Back 19

Free nerve endings

Front 20

Most free nerve endings are sensetve to which two things?

Back 20

Pain and Temperature

Front 21

This type of receptor responds to chemical or mechanical tissue damage, or noxious levels of heat or cold:

Back 21

Nociceptors

Front 22

This type of fiber makes up the axons of preganglionic autonomic neurons and are myelinated:

Back 22

B fibers

Front 23

Sensetivity of fibers to local anesthetics goes in what order?

Back 23

Small fibers first, larger fibers blocked last.

Front 24

Pressure on a nerve blocks which fibers first?

Back 24

Large fibers first, followed by smaller fibers.

Front 25

Which somatosensory pathway carries information for discriminative touch, pressure, vibration, and concious proprioception?

Back 25

dorsal column/medial leminiscus pathway

Front 26

Which somatosensory pathway carries information for pain and temperature as well as crude sensation of touch?

Back 26

anterolateral/spinothalamic pathway

Front 27

Which type of somatosensory pathwar carries information about proprioception to the cerebellum for motor coordination?

Back 27

Spinocerebellar pathway

Front 28

Lesions in the posterior columns will lead to _________ signs.

Back 28

ipsilateral

Front 29

Lesions above the decussation in the medulla will lead to _________ signs.

Back 29

Contralateral

Front 30

The inability to identify letters drawn on the skin

Back 30

agraphesthesia

Front 31

Inability to name objects held against the skin

Back 31

astereognosia

Front 32

Hand dermatomes

Back 32

C6-C8

Front 33

Nipple Dermatome

Back 33

T4

Front 34

Umbilicus Dermatome

Back 34

T10

Front 35

Feet Dermatome

Back 35

L5-S1

Front 36

Sacrum Dermatome

Back 36

S2-4