Control And Communication

Question 1

Nervous system is made up of

Answer 1

Central nervous system (CNS), brain and spinal cord

Question 2

Other (peripheral) neurons

Answer 2

Sensory neuron, inter neuron and motor neuron

Question 3

The brain has

Answer 3

Overall control of the body

Question 4

Medulla

Answer 4

Controls heart rate and breathing rate

Question 5

Cerebellum

Answer 5

Controls balance and coordinated movement

Question 6

Cerebrum

Answer 6

Responsible for conscious thoughts, reasoning, memory and emotions

Question 7

What does the brain receive information from

Answer 7

Receptors

Question 8

What does the brain send signals to

Answer 8

Effectors

Question 9

Sensory neuron

Answer 9

Transmits an electrical impulse from receptors in sensory organs to the inter neuron in the CNS

Question 10

Inter neuron

Answer 10

Transmits an electrical impulse through the CNS from a sensory neuron to a motor neuron

Question 11

Motor neuron

Answer 11

Transmits an electrical impulse from the CNS to the effectors

Question 12

What is the gap between the end of one neuron and the start of the next neuron called

Answer 12

Synapse

Question 13

What is a reflex action

Answer 13

Rapid, automatic, involuntary response to a stimulus. Protects the body from harm. Brain is not involved

Question 14

What is a reflex arc

Answer 14

Pathway that occurs when a stimulus causes the transimision of impulses through the sensory, inter and motor neuron to an effector to cause a reflex action

Question 15

What are hormones

Answer 15

Chemical messengers, released directly into the bloodstream by endocrine glands. Stimulate target tissues which have specific protein receptors, complementary to specific hormones

Question 16

Insulin

Answer 16

Cells in the pancreas detect the level of glucose in the blood. Insulin will convert excess glucose into glycogen and store it in the liver

Question 17

Glucagon

Answer 17

Cells in the pancreas detect the level of glucose in the blood. Glucagon will break down glycogen in the liver into glucose

Question 18

Words to describe a reflex response

Answer 18

Rapid, automatic, involuntary

Question 19

Purpose of a reflex response in an animal

Answer 19

To stop the animal from harm

Question 20

WhT type of gland releases hormones into the bloodstream

Answer 20

Endocrine glands

Question 21

Insulin and glucagon are hormones. Describe two features of hormones

Answer 21

Chemical messengers.

Stimulate target tissues which have specific protein receptors