The Brain & Neurons

Label the neuron.

b

f

e

d

c

a

nucleus

soma

axon

dendrites

axon terminals

myelin sheath

Label the brain.

c

d

e

f

b

a

temporal lobe

frontal lobe

cerebellum

occipital lobe

brainstem

parietal lobe

Match the following

• Executive function, & emotional control

• Frontal Lobe

• Sensations

• Temporal Lobe

• Vision

• Parietal Lobe

• Motor movement, balance, & coordination

• Occipital Lobe

• Language, hearing, & memory

• Cerebellum

You can live without your cerebellum.

• true

• false

Answer explanation

It's possible, but life would be very difficult.

The somatic nervous system is involuntary and can be observed in organs such as the lungs and heart.

• true

• false

Answer explanation

The autonomic nervous system is involuntary and can be observed in organs such as the lungs and heart.

The brainstem is made up of three parts. Name them.

Hint: m o p m

What is action potential?

Answer explanation

Action potential is a rapid sequence of change in voltage across a membrane. In Layman's term, negative ions inside the neuron change to positive ions from outside the neuron.

The optimal threshold for action potential to occur is...

• -70mV

• -30mV

• -55mV

• -100mV

The peripheral nervous system branches into two parts: the ​ (a)   which is afferent and picks up stimuli, and our efferent part, the ​ (b)   which sends instructions from your brain to your muscles and glands. The motor division also branches into two parts: the ​ (c)   which is voluntary and rules our skeletal muscle movement, and our ​ (d)   which is involuntary. Lastly, the autonomic nervous system can be divided into the ​ (e)   , also known as our fight-or-flight response.

• the sensory division
• motor division
• somatic nervous system
• autonomic nervous system
• sympathetic nervous system

Match the following

• a branch of nerves

• afferent neurons

• brain and spinal cord

• central nervous system

• carry signals to the CNS

• efferent neurons

• involuntary

• peripheral nervous system

• carry signals from CNS to muscles

• autonomic nervous system