Reflexes and PNS

A reflex is a voluntary response.

• true

• false

Reflexes usually work to protect you.

• true

• false

Reflexes in your body start when receptors in your body detect _________________.

• messages

• stimuli

• reactions

• movement

Tags

NGSS.MS-LS1-8

Reflexes involve receptors sending messages to the ______________.

• brain

• heart

• nerves

• spinal cord

Tags

NGSS.MS-LS1-8

Reflexes occur ______________ the brain knows what happened.

• before

• after

Tags

NGSS.MS-LS1-8

What is the final component of a reflex arc?

• Effector
• Receptor
• Integrating Centre
• Afferent Pathway

Tags

NGSS.HS-LS1-3

Which of the following is NOT an example of a reflex?

• Catching a ball
• Blinking when an object flies at your face
• Jumping at a loud nosie
• Coughing when something irritates your throat

True or false: A reflex is involuntary.

• True

• False

The part of the neuron that receives messages from other neurons

• axon
• dendrite
• cell body
• Schwann cell

What is the gap between the axon terminal of one neuron and the dendrite of the next neuron called?

• Synapse
• Node of Ranvier
• Joint
• Neuromuscular Junction