reflex movement

Question 1

name the 3 different types movement

Answer 1

• involuntary - reflex
• semi-automatic actions
• voluntary

Question 2

a reflex is centred ion what two types nerves?

Answer 2

• spinal nerves in the spinal cord

- cranial nerves in the brainstem

Question 3

reflexes can be monosynaptic or disynaptic, how many neurons does a monosynaptic pathway contain?

Answer 3

2

Question 4

reflexes can be monosynaptic or disynaptic, how many neurons does a disynaptic pathway contain?

Answer 4

3

Question 5

name the components for reflex pathway

Answer 5

• stimulus
• afferent (sensory) neuron
• synapse
• afferent (motor) neuron
• effector (muscle/gland)
• response

Question 6

name a monosynaptic reflex

Answer 6

quadricep reflex

Question 7

what type of nerve fibre tends to be present in reflex pathways?

Answer 7

A alpha fibre

Question 8

what do disynaptic reflex pathways contain that monosynaptic pathways don’t?

Answer 8

interneuron

Question 9

what activates a muscle loading reflex?

Answer 9

stretch and contraction

Question 10

which tendons act to inhibit the motor neuron in muscle loading reflexes?

Answer 10

golgi tendon

Question 11

seeing as there are no golgi tendons in the jaw, what is bite force controlled by?

Answer 11

PDL