Human Nervous System

Question 1

Name the two parts the nervous system is made up of.

Answer 1

central and peripheral.

Question 2

Name nervous system’s different functions.

Answer 2

sensory
integrative
motor

Question 3

What are meninges?

Answer 3

tissue membranes that protect the brain and the spinal cord cerebra.

Question 4

Biggest part of the brain.

Answer 4

Cerebrum.

Question 5

What does the pituitary gland do?

Answer 5

It secretes hormones.

Question 6

Name the two parts that the peripheral nervous system is comprised of.

Answer 6

somatic
automatic

Question 7

What is a synapse?

Answer 7

The places where neurons connect and communicate with each other

Question 8

What is a reflex arc.

Answer 8

A neural pathway that controls a reflex.

Question 8

What are neurotransmitters?

Answer 8

Their job is to carry chemical signals (“messages”) from one neuron (nerve cell) to the next target cell.

Question 9

The clear fluid that fills the cerebral ventricles: the space between the membranes surrounding the brain and the central canal of the spinal cord

Answer 9

Cerebrospinal fluid

Question 10

Outgrowths (fibres) which conduct impulses away from the cell body

Answer 10

Axons

Question 11

The part of the autonomic nervous system that prepares the body for rest

Answer 11

Parasympathetic

Question 12

A collection of nerve cell bodies outside the central nervous system

Answer 12

Ganglion

Question 13

Nodes in a neuron that allow for faster transmission of impulses along an axon

Answer 13

Nodes of ranvier

Question 14

the part of the central nervous system where nerve fibres between the brain and the spinal cord cross

Answer 14

medulla oblangata

Question 15

The part of the brain that acts as an important reflex centre

Answer 15

Medulla oblongata

Question 16

The membranes that enclose and protect the central nervous system

Answer 16

Meninges

Question 17

An automatic reaction to a stimulus that is not under the control of the will

Answer 17

Reflex action

Question 18

The structure that allows the conduction of impulses in one direction only

Answer 18

Synapse

Question 19

Outgrowths (fibres) which conduct impulses towards the cell body

Answer 19

Dendrites

Question 20

The functional unit of the nervous system

Answer 20

Neuron

Question 21

A chemical substance released at a synapse to either stimulate or inhibit the post synaptic membrane

Answer 21

Neurotransmitter

Question 22

Sensory neurons

Answer 22

carry impulses from receptors to the CNS

Question 23

A motor neuron

Answer 23

transmits impulses to muscles and glands

Question 24

An impulse is carried across a synapse as

Answer 24

a chemical process

Question 25

performed by the cerebrum

Answer 25

consciousness and controlling voluntary movements

Question 26

The spinal nerves are made up of

Answer 26

motor and sensory‑ nerves

Question 27

Which of the following are functions of the autonomic system?

Answer 27

peristalsis, blushing and control of many glands

Question 28

The principle function of the synaptic gap is to

Answer 28

ensure that impulses travel in one direction only