Reflex Control and Skeletal Muscle- 6

Question 1

Why do we need reflexes?

Answer 1

Maintain the bodies homeostasis.
Detect and react to changes in the environment.
Protect the body from noxious stimuli.

Question 2

How does a reflex differ from a norma stimuli

Answer 2

a reflex is an unconscious movement so the message goes to the spinal cord and bypasses the brain.

Question 3

Examples of a simple reflex movement

Answer 3

Knee-jerk movement (monosynaptic)
Pain withdrawl reflex (polysynaptic)

Question 4

What is an example of a complex reflex action.

Answer 4

Maintenance of body temperature

Question 5

Examples of sensory systems.

Answer 5

Vestibulo-ocular reflex
Pain withdrawl reflex
Gustatory-Salivary Reflex
Proprioception
Acoustic Reflex
Smell gag reflex

Question 6

Can exercise improve reflexes

Answer 6

Yes
Improved cardiovascular performance
Improved posture
Improved temp regulation

Question 7

Does diet improve reflex

Answer 7

Diet alone cannot improve reflex but a healthy diet is important to a good exercise regime.

Question 8

What syndrome is obesity linked to that can reduce reflexes

Answer 8

Linked to metabolic syndrome

Question 9

What happens to myosin and actin when calcium is increased

Answer 9

Causes actin and myosin to move closely together which causes the contraction in the smoot muscle.