NEURONS/NERVE CELLS (SCIENCE)

Question 1

What are the FOUR functions of the nervous system?

Answer 1

1. Gather Information
2. Transmit Information
3. Process Information
4. Send Information

Question 2

The nervous system is divided into two namely?

Answer 2

1. Central nervous system
2. Peripheral nervous system

Question 3

What are the two divisions of the peripheral nervous system

Answer 3

1. Somatic nervous system
2. Autonomic nervous system

Question 4

Differentiate somatic and autonomic nervous system.

Answer 4

Somatic nervous system - voluntary movements (skeletal)

Autonomic nervous system - involuntary movements (ex. heartbeat)

Question 5

What are the two components under central and peripheral nervous system?

Answer 5

Central nervous system - brain and spinal cord

Peripheral nervous system - cranial and spinal nerves

Question 6

The basic unit of communication in the nervous system is called?

Answer 6

Neurons/Nerve cells

Question 7

Are the basic functional units of structure and functions of the nervous system.

Answer 7

Neurons/Nerve cells

Question 8

A part of the neuron which contains nucleus, cytoplasm and organelles.

Answer 8

Cell body/soma

Question 9

A part of the neuron which receives and carries information TOWARD the cell body.

Answer 9

Dendrites

Question 10

A part of the neuron that carries messages AWAY from the cell body. Long, tail-like fiber that extends from the cell body.

Answer 10

Axon

Question 11

Covers the axon. It speeds up the travel of the nerve impulse.

Answer 11

Myelin sheath

Question 12

It passes on the messages to the dendrites of the other neurons.

Answer 12

Axon terminals

Question 13

Is a small gap at the end of a neuron that allows a signal to pass from one neuron to the next.

Answer 13

Synapse

Question 14

Name all the parts of a neuron.

Answer 14

1. Dendrites
2. Cell Body/Soma
3. Nucleus
4. Axon
5. Myelin sheath
6. Axon terminals

Question 15

What are the types of neurons?

Answer 15

1. Sensory Neurons/Afferent Neurons
2. Interneurons/Connector Neurons
3. Motor Neurons/Efferent Neurons

Question 16

Receive initial stimuli from the sense organs where more receptors are located.

Answer 16

Sensory Neurons/Afferent Neurons

Question 17

Found in the brain and spinal cord and sends message to the motor neuron.

Answer 17

Interneuron/Connector Neurons

Question 18

Receive messages from the brain and spinal cord and send it to the muscles or glands.

Answer 18

Motor Neurons