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WorksheetsThe CNS and PNS
Total questions: 15
Worksheet time: 11mins
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
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
This system detects stimuli with receptors.
Somatic
Autonomic
Peripheral
Sympathetic
Sensory neurons and Motor neurons are apart of what system?
Somatic
Sympathetic
Autonomic
Central nervous system
In this picture of a brain, the green section is known as the
thalamus
frontal cortex
cerebellum
cerebrum
In this picture of a brain, the yellow part is known as the
cerebellum
cerebrum
spinal cord
cerebral cortex
An impulse is travelling along an axon. It reaches a synapse, what happens next?
The impulse jumps the gap to the dendrite of the next neuron and continues on its way
Chemicals (neurotransmitters) are released into the space between neurons, and attach to next neuron for the impulse to continue.
Dopamine is released into the synapse, which binds to the next neuron, generating an impulse in that neuron
The impulse waits while the next neuron prepares itself to receive the signal
