reflexes-physio

Question 1

Afferent and efferent of the only monosynaptic reflex

Answer 1

Afferent1a ||Efferent|a

Question 2

Bag vs chain

Answer 2

Bag Respond to the rate of the stretchDynamicPhasicChain TonicRespond to degrees of the stretch Static

Question 3

Primary vs secondary afferent

Answer 3

1ry 1a , rapidly conducting, dynamic and static for chain and bag 2ry ||Afferent, slow conducting, give static response only to chain

Question 4

Dynamic stretche reflex is a basis for …..

Answer 4

Tendon jerks

Question 5

What’s gamma loop/Alpha gamma co activation or force regulation

Answer 5

Servo assistant function of SR as in weight liftingThe heavier the more afrrent discharge, the more alpha recruitment , the more force of Contraction

Question 6

Supra spinal facilitatory centers of SR

Answer 6

CpC V4Caudate nucleus Pontoreticulospinal CereberocerebellumVestibular nucleusArea 4

Question 7

Supra spinal inhibitory centers of SR

Answer 7

RMP. Red nucleusMedullary reticular formationPutamenS4 S6Area 4s and area 6Spinocerebellum

Question 8

Inverse stretch reflex

Answer 8

Afferent: | b fibersEfferent: inhibitory to alpha motor neuron through releaseGlycine