B10

Question 1

What does homeostasis do?

Answer 1

Homeostasis maintains best conditions for enzyme action throughout the body, as well as all cell functions.

Question 2

What does homeostasis control?

Answer 2

• Blood glucose
• Body temperature
• Water levels

Question 3

What generates nervous responses?

Answer 3

The Nervous system

Question 4

What generates chemical responses?

Answer 4

The endocrine system

Question 5

What does the nervous system consist of?

Answer 5

The

• CNS ( brain and spinal cord)
• PNS (nerve cells that carry info to/from CNS)

Question 6

What does CNS stand for?

Answer 6

Central nervous system

Question 7

What does PNS stand for?

Answer 7

Peripheral nervous system

Question 8

What do receptors detect?

Answer 8

Stimuli

Question 9

What are stimuli

Answer 9

Changes in the environment

Question 10

What do effecters do?

Answer 10

Bring about responses to maintain ideal conditions

Question 11

Name examples of effectors

Answer 11

• Muscles

- Glands

Question 12

List effector jobs

Answer 12

Controls;

• Core body temperature
• Blood glucose levels

Question 13

What are neurons?

Answer 13

They are nerve cells

Question 14

What do neurons do?

Answer 14

Adapted to carry electrical impulses from one place to another

Question 15

Name the three main types of neurons

Answer 15

• Sensory
• Motor
• Relay

Question 16

What do sensory neurons do?

Answer 16

They carry signals from receptors to the CNS

Question 17

What do the motor neurons do?

Answer 17

They carry signals from the CNS to effectors

Question 18

What do relay neurons do?

Answer 18

They carry messages from one part of the CNS to the other

Question 19

What are synapses?

Answer 19

The tiny gap in between where two neurons meet

Question 20

What are reflex actions?

Answer 20

It is an instantaneous movement in response to a a stimulus