Coordination and Response

Which of the following are involuntary actions?

A: Riding a bicycle

B: Heart beat

C: Taking this quiz

D: Peristalsis

• A and B

• A and C

• B and D

• C and D

Which of the following is a characteristic of a reflex action?

• Response is controlled by hormones

• Response is fast

• Response is initiated under the control of the brain

• Nerve impulse takes a longer path

Which type of neuron transmits a signal from a sense organ to the central nervous system?

• sensory

• relay

• motor

• efector

What is the generalised order during a nervous response?

• Receptor → stimulus → neurones → effector → response

• Response → receptor →neurones → effector → stimulus

• Stimulus → receptor → neurones → effector → response

• Stimulus → effector → neurones→ receptor → response

Responses are carried out by organs or tissues known as

• Stimulus

• Responses

• Effectors

• Receptor

There are three type of neurones. Which neurone that transmits impulses from the central nervous system to the effector organs to elicit response..

• sensory neurone

• motor neurone

• interneurone

Which list describes the correct sequence of a simple reflex arc?

• Receptor, relay neurone, motor neurone, sensory neurone, effector

• Receptor, relay neurone, sensory neurone, motor neurone, effector

• Receptor, sensory neurone, motor neurone, relay neurone, effector

• Receptor, sensory neurone, relay neurone, motor neurone, effector

Which part of the nervous system is not involved in producing reflex actions?

• brain

• spinal cord

• receptors

• sensory

You are in a building when someone shouts, “fire!” Without thinking, you start running.

In this reflex action, what is the stimulus?

• The fire

• The shout of “fire”

• People running

• The muscles in your legs

In this reflex action, what is the effector?

• Shouting

• Sound receptors in your ears

• The muscles in your leg

• Running