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Grade 9 Biology test 1 ( nervous system)

Total questions: 25

Worksheet time: 15mins

Name
Class
Date
1.
The Medulla Obolongata controls our ___.
a)
Blood Pressure 
b)
Muscle Memory 
c)
Pain reaction
d)
Memory 
2.
The part of the neuron that insulates the axon and increases the speed of the neural message within the neuron.
a)
Synapse
b)
Dendrite
c)
Myelin Sheath
d)
Axon Terminal Button
3.

This part of the neuron receives chemical messages from the neurotransmitters of other neurons. It is labeled A in the diagram.

a)

Dendrite

b)

Axon

c)

Axon Terminal

d)

Cell Body

4.

Which part of the brain controls your blood pressure and heart rate?

a)

brain stem

b)

cerebrum

c)

cerebellum

d)

adrenal gland

5.

What is the gap between two neurons called?

a)

Impulse

b)

Synapse

c)

CNS

d)

Inter neuron

6.
The nervous system subdivision that is composed of the brain and spinal cord.
a)
Autonomic Nervous Sytem
b)
CNS
c)
PNS
d)
Somatic Nervous System
7.

_____ neurons carry messages away from the central nervous system and out to muscles or glands. The RED neuron in diagram.

a)

sensory

b)

motor

c)

inter

d)

central

8.

What part of the brain deals with appetite and temperature control?

a)

Cerebellum

b)

Cerebrum

c)

Hypothalamus

d)

Brain stem

9.

What part of the nervous system is responsible for slowing down breathing and pulse?

a)

Spinal Nerves

b)

Sympathetic

c)

Parasympathetic

d)

Spinal Nerves

10.

What part of the brain is responsible for conscious thought, judgement, memory, reasoning and will power?

a)

Cerebellum

b)

Hypothalamus

c)

Cerebrum

d)

Thalamus

11.
What is the part highlighted in red?
a)
Cerebrum
b)
Cerebellum
c)
Brain Stem
d)
Diencephalon
12.
The long, fiber like part of a neuron which the cell sends information to receiving neurons
a)
axon 
b)
dendrite
c)
axon terminal
d)
gene
13.

The part of the PNS that controls involuntary actions

a)

autonomic nervous system

b)

somatic nervous system

c)

organic nervous system

d)

reflexive nervous system

14.
A chemical produced by neurons that carries messages to other neurons
a)
myelin sheath
b)
neurotransmitter
c)
axon
d)
axon terminal
15.

The column of tissue connecting the brain to nerves is...

a)

spinal cord

b)

central nervous system

c)

peripheral nervous system

d)

All of the above

16.

What kind of neuron carries information from our eyes to our brain?

a)

Motor neuron

b)

Sensory neuron

c)

Nerve

d)

Spinal neuron

17.

What is structure labeled F in the picture?

a)

Dendrite

b)

Axon

c)

Cell Body

d)

Axon Terminal

18.

When a neuron is at REST,

a)

the inside of the neuron is negatively charged compared to the outside.

b)

the inside of the neuron is positively charged compared to the outside.

c)

there is no charge difference established

d)

none of these is true

19.

How many pairs of spinal nerves are there?

a)

12

b)

31

c)

13

d)

21

20.

An action potential is caused by an influx of ________ ions into the cell.

a)

potassium

b)

calcium

c)

magnesium

d)

sodium

21.
Z
a)
Dendrite
b)
Axon Terminal
c)
Neurotransmitters
d)
Synapse
22.

when does the stimuli cause an action potential?

a)

when it reaches threshold

b)

just below the threshold

c)

just above threshold

d)

all stimulus causes an action potential

23.

Which ions 'leak' out of neurones to establish resting potential?

a)

sodium ions

b)

potassium ions

c)

hydrogen ions

d)

chloride ions

24.
Which is the last step in the synaptic transmission of a nerve impulse from pre-synaptic neuron to a postsynaptic cells.
a)
a nerve impulse arrives at the axon terminal of the presynaptic cell
b)
vessicles in the presynaptic neutron fuse with the cell membrane
c)
neurotransmitter molecules are released into the synaptic cleft
d)
neurotransmitters bind to receptor proteins on the postsynaptic cell
25.

which part of nervous system involved with a reflex arc?

a)

spinal cord

b)

brain

c)

cerebrum

d)

cerebellum

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