The Brain & Neurons

Label the neuron.

b

f

e

d

c

a

axon

dendrites

soma

myelin sheath

axon terminals

nucleus

Label the brain.

c

d

e

f

b

a

frontal lobe

parietal lobe

temporal lobe

cerebellum

occipital lobe

brainstem

Match the following

• Language, hearing, & memory

• Parietal Lobe

• Executive function, & emotional control

• Temporal Lobe

• Vision

• Occipital Lobe

• Sensations

• Frontal Lobe

• Motor movement, balance, & coordination

• 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

• carry signals from CNS to muscles

• efferent neurons

• a branch of nerves

• peripheral nervous system

• involuntary

• central nervous system

• carry signals to the CNS

• autonomic nervous system

• brain and spinal cord

• afferent neurons