Reflexes

Question 1

Define Reflexes

Answer 1

Specific, stereotyped motor responses to an adequate (appropriate) stimulus

Question 2

What are the four components regarding reflexes?

Answer 2

1. ) Receptor
2. ) Afferent limb
3. ) Efferent limb
4. ) Effector organ

Question 3

What does the receptor component entail?

Answer 3

Muscle spindles, GTO, encapsualted and free nerve endings

Question 4

What does the afferent limb component entail?

Answer 4

Carries the impulse into the CNS (ie. Dorsal root fibers)

Question 5

What does the efferent limb entail?

Answer 5

Carries the impulse for the response of the CNS (ie. Lower motor neurons (alpha motor neurons)

Question 6

What does the Effector organ entail?

Answer 6

Skeletal muscles, glands

Question 7

The patellar ligament or knee jerk demonstrates the principle of what? and can be thought to include a small amount of what?

Answer 7

Autogenic Facilitation

—Reciprocal inhibition

Question 8

At a certain point of tension GTOs stimulate what?

Answer 8

AN inhibitory influence to the alpha motor neurons (that are driving the contracting muscle)

–This is autogenic hibition

Question 9

Reciprocal facilitaiton involves what?

Answer 9

The antagonist muscle can be activated to facilitate release of tension

Question 10

What reflux is assoicated with:

Autogenic Facilitation AND Reciprocal Inhibition?

Answer 10

Deep Tendon/Stretch Reflex

Question 11

What reflux is assoicated with:

Autogenic Inhibition AND Reciprocal Facilitation?

Answer 11

GTO

Question 12

Flexor Withdrawal Reflex and Crossed Extension reflex involve what?

Answer 12

More than just two neurons, Reciprical inhibition of antagonist or oppositing muscle must occur (opposite of what GTOs do)