Control & Communication

Question 1

Cells in multicellular organisms do not_________?

Answer 1

Cells in multicellular organisms do not work independently

Question 2

What three parts is the human nervous system made up of?

Answer 2

The human nervous system is made up of

1 - the brain
2 - spinal cord
3 - associated nerves

The brain and spinal cord made up the (CNS)

Question 3

What part of the nervous system do the brain and spinal cord make up?

Answer 3

The brain and spinal cord make up the central nervous system (CNS)

Question 4

What connects the CNS to all parts of the body?

Answer 4

The CNS is connected to all parts of the body by nerves

Question 5

What is the function of nerves?

Answer 5

Nerves transmit information to and from all parts of the body and systems

Question 6

What part of the body has overall control?

Answer 6

The brain has overall control to make all parts work together as a whole

Question 7

What is the flow of information in order?

Answer 7

1 - receptors (sense organs) 
2 - sensory nerves 
3 - CNS 
4 - motor nerves 
5 - effectors (muscles and glands)

Question 8

What is the sense organs?

Answer 8

parts of our body that we use to feel the impact of different things are called SENSE ORGANS (eye, ear, mouth, skin, nose)

Question 9

Each sense organ have special cells called……

Answer 9

Each sense organ have special cells called receptor cells

Question 10

Describe receptor cells.

Answer 10

Receptor cells detect sensory input/stimuli

Question 11

List receptors and senses and what they are sensitive too

Answer 11

Receptors in the eye are sensitive to light

Receptors in the ear are sensitive to sound

Receptors on the tongue are sensitive to chemicals

Receptors in the nose are sensitive to chemicals

Receptors in the skin are sensitive to, touch, pressure, pain and temperature

Question 12

What is the largest part of the human brain?

Answer 12

The cerebrum is the largest part of the human brain

Question 13

How many connecting hemispheres does the cerebrum have?

Answer 13

The cerebrum has two connecting cerebral hemispheres

Question 14

What are the four main structures in the brain?

Answer 14

Cerebrum, Medulla, Spinal cord, cerebellum

Question 15

What is the function of the medulla?

Answer 15

The medulla controls rate of breathing and heart rate

Question 16

What is the function of the cerebellum?

Answer 16

The cerebellum controls balance and muscular co-ordination

Question 17

What is the function of the cerebrum?

Answer 17

The cerebrum controls mental processes, conscious thought and intelligence

Question 18

Draw and label the structure of a nerve cell.

Question 19

What is the nervous system made up of?

Answer 19

The nervous system is made up of nerve cells called neurons

Question 20

What is a neurons cell body attached too?

Answer 20

A neuron has a cell body attached too nerve fibres

Question 21

What is a synapses?

Answer 21

A synapse is a tiny space that lies between the ending of one neuron and the beginning of the next neuron

• when an electrical impulse reaches the end of a neuron, chemicals are released from it
• The chemicals diffuse across the synapse and trigger an electrical impulse in the next neuron