Test 14- The nervous system

Question 1

The brain and spinal cord form the ______ nervous system.

Answer 1

central

Question 2

The nerves which connect the brain and structures of the head are ______ nerves.

Answer 2

cranial

Question 3

An immediate response of the body to a stimulus is a ______ action.

Answer 3

reflex

Question 4

Messages are transmitted along nerve fibers by means of action ______.

Answer 4

potential

Question 5

A stimulus is received by a ______.

Answer 5

receptor

Question 6

The muscle or gland which responds to a stimulus is the ______.

Answer 6

effector

Question 7

Nerve cells are known as ______.

Answer 7

neurons

Question 8

Nerve fibers are connected by a junction or ______.

Answer 8

synapse

Question 9

At these junctions, signaling molecules or ______ are released.

Answer 9

neurotransmitters

Question 10

Normally nerve cells are divided into three types: ______, ______, ______.

Answer 10

sensory

motor

autonomous

Question 11

A motor cell consists of a cell body with 1._____ protruding from it and a long 2._____.

Answer 11

1. dendrites

2. axon

Question 12

In the spinal cord, neuronal cell bodies are known as _____.

Answer 12

grey matter

Question 13

Nerves which supply the body wall, skeletal muscle and skin are _____ nerves.

Answer 13

somatic

Question 14

A collection of neuronal cell bodies lying outside the CNS is called a _____.

Answer 14

ganglion

Question 15

The interanl environment of the body is controlled by the _____ nervous system.

Answer 15

autonomic

Question 16

Fight, fright or flight” is controlled by the _____ nervous system.

Answer 16

sympathetic