CNS, PNS and Brain lobes

Which organs are involved in the central nervous system (CNS)?

• The brain and the spinal cord

• The senses, organs and muscles

• The heart and lungs

• The kidneys and liver

What organs are involved in the peripheral nervous system (PNS)?

• The brain and the spinal cord

• The senses, organs and muscles

• The heart and lungs

• The kidneys and liver

What type of neuron is primarily involved in the CNS? These neurons consist of 99% of the CNS.

• Sensory neurons: detect signals

• Motor neurons: respond to signals

• Interneurons: transfer messages between neurons

• All of the above

What type of neurons are involved in the PNS?
Select those applicable.

• Sensory neurons: detect signals

• Motor neurons: respond to signals

• Interneurons: transfer messages between neurons

• All of the above

What is the function of the CNS?

• Sends messages to the muscles

• Processes incoming messages from the environment

• Controls heartbeat

• Coordinates digestion

What is the function of the PNS?

• Sends signals to the brain

• Carries information to and from CNS to

• Regulates breathing

• Sends messages to the heart

How are the CNS and PNS related?

• PNS detects and sends signal to CNS. CNS interprets and responds to complete action

• CNS detects and sends signal to PNS. PNS interprets and responds to complete action

• PNS works independently of the CNS

• CNS and PNS are not related

What is the difference between the somatic and autonomic nervous systems?

• Somatic controls involuntary actions (eg. hearbeat, digestion, respiration);
  autonomic controls voluntary actions (eg. waving)

• Somatic controls voluntary actions (eg. waving);
  autonomic controls involuntary actions (eg. hearbeat, digestion, respiration)

• Both control voluntary actions

• Both control involuntary actions

Label the correct lobes of the brain which are involved in the CNS.

a

b

c

d

e

f

Occipital lobe

Brain stem

Cerebellum

Temporal lobe

Parietal lobe

Frontal lobe

Match the correct definitions to the following terms:
1. Cerebrum: ​ (a)  
2. Cerebellum "little cerebrum": ​ (b)  
3. Brain stem: ​ (c)  

• Controls voluntary actions, thinking, and memory.
• Coordinates balance, posture, and motor control.
• Regulates organ functions: breathing, heartbeat.