Nerve Signals- Reflex Arcs

Question 1

Three- neuron arcs consist of all three kinds of neurons: _____, _____, and ______ ______.

Answer 1

Sensory, interneurons, and motor neurons

Question 2

Impulse conduction in a reflex arc normally starts in _____.

Answer 2

Receptors (receptionist at the front desk)

Question 3

A(n) _____ is the place where impulses are transmitted from one neuron to another neuron.

Answer 3

Synapse ••••
(Synapse _)
(Neuron•)

Question 4

A(n) ______ is the response to impulse conduction over reflex arcs

Answer 4

Reflex

Question 5

Contraction of a muscle that causes it to pull away from an irritating stimulus is know as the _____ _____.

Answer 5

Withdraw reflex

Question 6

A(n) ______ is a group of nerve cell bodies located in the peripheral nervous system

Answer 6

Ganglion

PNS GANG

Question 7

All ____ lie entirely within the gray matter of the central nervous system

Answer 7

Interneurons

Question 8

In a patellar reflex, the nerve impulses that reach the quadriceps muscle (the effector) result in the classic “____ ____” response

Answer 8

Knee jerk

Question 9

______ _____ forms the H-shaped inner core of the spinal cord

Answer 9

Gray matter

Question 10

The simplest kind of arc is a(n) ______ _____ ______.

Answer 10

Two neuron arc

•efferent (motor neuron)
And
•afferent (sensory neuron)