The CNS and PNS

The Central Nervous System is made up of

• the cerebellum and cerebrum

• the brain and spinal cord

• the brainstem and spinal cord

• cerebrum and spinal cord

How does the body prevent damage to the fragile brain and spinal cord?

• the brain is kept floating in the skull so it can absorb impacts

• the brain and spinal cord are enclosed in bone (skull and spinal column) to protect it

• the spinal cord is kept safe by being hidden behind other body organs and muscles

• The brain isn't as protected as the spinal cord

PNS stands for

• Parallel Nervous System

• Peripheral Nervous System

• Physical Nervous System

• Pressure Nervous System

The Peripheral Nervous System is made up of

• the brain and spinal cord

• all of the neurons in the body

• the neurons outside of the brain and spinal cord

• the neurons in your arms and legs

What does the somatic system do? (the somatic system is part of the Peripheral Nervous System)

• It speeds up functions of the body ready for fight or flight

• it slows down functions of the body ready for rest and digest

• It consists of all the neurons outside of the Central Nervous System

• It is used for actions that you control (reaching out and grabbing something) and sensing stimuli

Select three actions that are carried out by the Parasympathetic System

• slows the heartbeat down

• increases blood flow to the digestive tract to help digest food

• dilates the pupils to improve distance vision

• speeds the heartbeat up

• contracts the pupils to improve close vision

Tags

NGSS.HS-LS1-3

The Autonomic part of the Peripheral Nervous System is split into two parts, select both

• Central Nervous System

• Sympathetic

• Parasypathetic

• Somatic

The Peripheral Nervous System is divided into the Somatic System and the Autonomic System

• True

• False

What joins the two hemispheres of the brain together?

• corpus callosum

• cerebral cortex

• frontal lobe

• cerebellum

The fight or flight response is caused by what system?

• Sympathetic

• Parasympathetic

• Somatic

• Autonomic