Divisions of the nervous system and parts of the brain

Question 1

What does the central nervous system (CNS) include?

Answer 1

brain and spinal cord

Question 2

What does the peripheral nervous system (PNS) consist of?

Answer 2

peripheral nerves and includes the somatic nervous system (SNS) and autonomic nervous system (ANS)

Question 3

What does SNS control?

Answer 3

voluntary actions by skeletal muscles

Question 4

What does the ANS control?

Answer 4

involuntary actions by glands, smooth muscles and cardiac muscle

Question 5

What does the ANS consist of?

Answer 5

Sympathetic and parasympathetic nervous systems, antagonistic to each other

Question 6

What does sympathetic fibres do?

Answer 6

speed the heart and breathing rates but slow digestive processes such as secretion of digestive juices, secretion of bile and peristalsis

Question 7

What does the cerebellum of the brain do?

Answer 7

control balance and coordination

Question 8

What does the medulla in the brain do?

Answer 8

heart rate, breathing rate and peristalsis

Question 9

What does the sensory area receive?

Answer 9

Impulses from the skin,organs and muscles

Question 10

Where about does the motor area send impulses to?

Answer 10

skeletal muscles

Question 11

What os the nervous system responsible for?

Answer 11

analysing information
storing information
making decisions

Question 12

What does parasympathetic fibres do?

Answer 12

slow the heart and breathing rates but speed up digestive processes such as secretion of digestive juices, secretion of bile and peristalsis

Question 13

What does the medulla do?

Answer 13

Centres that control heart rate, breathing rate and peristalsis

Question 14

What is the cerebrum divided into?

Answer 14

The left and right cerebral hemisphere

Question 15

What is the cerebral cortex divided into?

Answer 15

Localised regions including sensory,motor and association areas

Question 16

What is the three functions of the cerebral cortex?

Answer 16

Receives sensory information, coordination of voluntary movement and making decisions based on experience

Question 17

Where does the sensory area receives impulses from?

Answer 17

skin,organs and muscle

Question 18

Where does the motor area send impulses to?

Answer 18

skeletal muscles

Question 19

What are the association areas concerned with?

Answer 19

language, personality, imagination and intelligence

Question 20

Where is the information from one side of the body processed

Answer 20

By the cerebral hemisphere that is located on the opposite side

Question 21

What does the corpus callosum do?

Answer 21

Transfer information between the two cerebral hemispheres

Question 22

How are the hemispheres connected?

Answer 22

By a bundle of nerve fibres known as the corpus callosum

Question 23

What is the benefits of the cerebral cortex being highly folded

Answer 23

Increases surface area

• provides greater space for more neurons
• allows for more interconnections between neurons

Question 24

What are the two types of nerve cells which are present in somatic nervous system

Answer 24

Motor neuron

Sensory Neuron

Question 25

What does the cerebral cortex do?

Answer 25

Centre of conscious thought, memory and learning

Question 26

What are motor areas?

Answer 26

Areas of the cerebral cortex from which nerve impulses travel to muscles or glands

Question 27

What are sensory areas?

Answer 27

Areas of the cerebral cortex which receive stimuli from sense organs