Chapter 6 - Nervous Coordination

Question 1

Receptors

Answer 1

Part of the nervous system, detect stimuli. Found in the sense organs, eyes ears etc.

Question 2

Motor neurone

Answer 2

Carry impulses from the CNS to effector organs, which contract (muscles) or secret if they are glands.

Question 3

Relay neurone

Answer 3

Passes the impulse on after impulse is transmitted to CNS

Question 4

Synapse

Answer 4

Junction between relay and motor neurone, chemicals transmit the impulse across the gap.

Question 5

Reflex arc

Answer 5

The sequence from the receptor to the effector.

Question 6

Order of reflex actions

Answer 6

Stimulus ➡️ receptor➡️ sensory neurone ➡️ motor neurone ➡️ effector ➡️ response

Question 7

The brain

Answer 7

Made of billions of interconnected neurones and receive impulses from sensory neurones all over the body and coordinate the responses.

Question 8

Cerebral cortex

Answer 8

Concerned with consciousness, intelligence, memory and language.

Question 9

Cerebellum

Answer 9

Concerned with coordination of muscular activity.

Question 10

Medulla

Answer 10

Concerned with unconscious activities such as breathing and heartbeat.

Question 11

Pituitary gland

Answer 11

Produces hormones such as adh.

Question 12

CNS

Answer 12

The central nervous system made up of the brain and spinal cord.