Muscle Reflexes

Question 1

reflex

Answer 1

involuntary nervous system response to a sensory input; localized somatic or visceral stimuli producing patterns of reflex response in segmentally related stuctures

Question 2

_______sense pain and temperature

Answer 2

nocireceptors

Question 3

-________sense vibration

Answer 3

pacinian corpuscles

Question 4

__________-sense touch

Answer 4

meissner corpuscles

Question 5

what are the three types of propioceptors

Answer 5

muscle spindle, golgi tendin and ruffini end organs

Question 6

muscle spindles send

Answer 6

length

Question 7

golgi tendon sense

Answer 7

tension

Question 8

ruffini end organs sense

Answer 8

pressure, joint angle

Question 9

intrafuual mechano-receptors are part of _________ and function to what ?

Answer 9

muscle spindles, function to mediate response to load, prevent jerkiness of body movements, and invoke voluntary motor activity (maintain posture)

Question 10

__________are the receptors for muscle stretch in the two neuron stretch reflex

Answer 10

muscle spindle

Question 11

the intrafusal fibers are the ____fibers

Answer 11

modulating

Question 12

the extrafusal fibers are the _______fibers

Answer 12

contractile fibers

Question 13

what innervate the intrafusal fibers

Answer 13

gamma motor neurons from CNS

Question 14

type 1a afferent names

Answer 14

dynamic, fast reflex
rate change of length
annulospiral
primary ending

Question 15

type II afferent names

Answer 15

static slow
length
flower spray
secondary ending

Question 16

gamma motor neuron

Answer 16

spindle tension, intrafusal

Question 17

alpha motor nuron

Answer 17

muscle tension extrafusal

Question 18

nuclear chain muscle fiber

Answer 18

6-10

Question 19

nuclear bag muscle fiber

Answer 19

2-5

Question 20

reflex contraction of a muscle when an attached tendon is pulled

Answer 20

stretch myotactic reflex (monosynatpic) like the patellar reflex)

Question 21

in a myotactic reflex, 1a sensoy is the

Answer 21

dorsal root

Question 22

gamma efferent nerve function is to

Answer 22

keep muscle spindle sensitive to any stretch

Question 23

muscle spindle reflex

Answer 23

the addition of a load stretches the muscle and the spindles creating a reflex contraction

Question 24

what is gamma gain

Answer 24

level of gamma motor activity affecting the muscle spindle

Question 25

OMT techniques are thought to __________when too much activity, and hypertonicity

Answer 25

decrease gamma gain

Question 26

golgi tendon organ

Answer 26

consists of sensory nerve endings interwoven among collagen fibers

Question 27

in the ________excessive tension inhibits the muscle associated with the golgi tendon organ

Answer 27

lengthening reflex

Question 28

where can golgi tendon organ be found

Answer 28

near its junction with a muscle, encapsulated nerve bundle, in series with muscle fiber

Question 29

what type of sensory afferent are involved in the golgi tendon organ

Answer 29

type 1b sensory origin

Question 30

what is inhibited by the golgi tendon organ

Answer 30

alpha motor neuron

Question 31

what is stimulated by the golgi tendon organ

Answer 31

gamma efferent to reset muscle tone

Question 32

what is more sensitive, stretch reflex or golgi tendon oragn

Answer 32

stretch reflex

Question 33

golig tendon organ refelx is also known as

Answer 33

lengthening reaction or clasp knife reflex

Question 34

firing of joint receptors is proportional to

Answer 34

joint angle

Question 35

joint receptors appear to trigger visceral efferent that modulate

Answer 35

secretion of synovial fluid, production of glycosaminoglycans and possibly other joint macromolecules, and increased blood and lymph flow to and from the joint

Question 36

crossed extensor reflex triggered by

Answer 36

flexor withdrawal reflex

Question 37

effects of muscle energy include

Answer 37

reciprocal inhibition of over active muscle and use of golgi tendon reflex to reduce tension of overactive muscles

Question 38

what are the two types of muscle spindles

Answer 38

nuclear bag and nuclear chain fibers

Question 39

sensory afferents are what type of fibers

Answer 39

group 1a