The Brain & Neurons

Label the neuron.

b

f

e

d

c

a

myelin sheath

soma

nucleus

axon

axon terminals

dendrites

Label the brain.

c

d

e

f

b

a

brainstem

frontal lobe

occipital lobe

cerebellum

temporal lobe

parietal lobe

Match the following

• Motor movement, balance, & coordination

• Parietal Lobe

• Sensations

• Cerebellum

• Executive function, & emotional control

• Frontal Lobe

• Language, hearing, & memory

• Temporal Lobe

• Vision

• Occipital Lobe

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

• involuntary

• peripheral nervous system

• a branch of nerves

• central nervous system

• brain and spinal cord

• autonomic nervous system

• carry signals to the CNS

• afferent neurons

• carry signals from CNS to muscles

• efferent neurons