Chapter 2.3a Control and Communication: Nervous System Flashcards Preview

FULL COURSE National 5 Biology > Chapter 2.3a Control and Communication: Nervous System > Flashcards

Flashcards in Chapter 2.3a Control and Communication: Nervous System Deck (18)
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1
Q

The parts of the nervous system are the

A

brain, spinal cord, the nerves and the sense organs

2
Q

The nervous system is made up of cells called

A

neurons

3
Q

There are three basic types of neuro:

A

Sensory, relay and motor

4
Q

The Central Nervous System (CNS) is made up of the

A

brain and the spinal cord

5
Q

The brain is made up of the

A

cerebrum, cerebellum and medulla

6
Q

The cerebrum is responsible for

A

conscious thoughts, reasoning, memory and emotions

7
Q

The cerebellum controls

A

balance and co-ordination

8
Q

The medulla controls involuntary functions such as

A

breathing, heart rate and peristalsis

9
Q

The CNS processes information from the

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Sense organs and coordinates responses

10
Q

Sense organs contain receptor cells which generate

A

electrical impulses in response to stimuli

11
Q

Electrical impulses pass from

A

sensory neurons to relay neurons within the CNS

12
Q

Relay neurons within the CNS pass electrical impulses to

A

motor neurons

13
Q

Motor neurons pass electrical impulses to

A

effectors which bring about a response

14
Q

Reflex actions are very rapid since they involve only

A

a few neurons and do no require complex processing of information by the brain

15
Q

Reflex actions help

A

protect the body from harm

16
Q

The group of neurons involved with the structure and function of a reflex action is called a

A

reflex arc

17
Q

A synapse is a

A

narrow gap between the neurons

18
Q

Chemicals are released into the synapse from the neuron leading to it. These chemicals allow an

A

electrical impulse to be generated in the next neuron after the synapse.