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Reflex Arc & Reflex Action

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

An example of a reflex action includes

a)

Touching a butterfly

b)

Brushing your hand against the side of your body

c)

Touching a hot stove

d)

Your legs moving as you walk

2.

An effector is also known as a ____________ to an action

a)

Stimulus

b)

Sensory neuron

c)

Motor neuron

d)

Response

3.

An effector is also known as a ____________ to an action

a)

Stimulus

b)

Sensory neuron

c)

Motor neuron

d)

Response

4.

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

a)

Spinal cord, CNS

b)

CNS, muscle

c)

Spinal cord, muscle

d)

Muscle, CNS

5.

If you pick up a hot plate _____________ receptors in your ___________ detect this change

a)

Sensory, skin

b)

Sensory, muscle

c)

Motor, skin

d)

Intermediate, muscle

6.

Reflex actions are important because

a)

They provide a quick, involuntary response

b)

They prevent injury

c)

They are essential to the survival of organisms

d)

All of the above

7.

Name an effector in this diagram.

a)

A

b)

B

c)

D

d)

E

e)

F

8.

Select two examples of effectors.

a)

Neuron

b)

Gland

c)

Muscle

d)

Receptor

9.

How is a reflex arc different than other voluntary movements?

a)

A reflex arc takes the same path as a voluntary action

b)

A reflex a travels from a sensory neuron to the spinal cord then to a motor neuron, skipping the brain

c)

A reflex arc takes longer than a voluntary action

d)

There is no difference between a reflex arc and a voluntary action

10.
Salivary glands are an example of ...
a)
A receptor
b)
A relay
c)
A detector
d)
An effector
11.
What is the neuron found only in the spinal cord?
a)
Relay
b)
Sensory
c)
Motor
d)
Reflex
12.
What makes up the CNS
a)
brain and spinal cord
b)
brain and neurons
c)
brain
d)
spine and neurons