HBS 3.2.2

Neurotransmitters are stored in which structure of the neuron?

• Cell body

• Dendrite

• Axon terminals

Myelin is located on the ____________ and functions to ____________ nerve transmission.

• dendrite - speed up

• dendrite - slow down

• axon - speed up

• axon - slow down

Neurotransmitters bind to complementary sites on a cell called

• receptors

• axon terminals

• cell bodies

Depolarization occurs when the inside of a cell becomes _________________ due to _________ gates opening.

• positive - potassium

• negative - potassium

• positive - sodium

• positive - sodiium

The spaces between myelin on an axon are called

• axon gaps

• nodes of ranvier

• dendrite dents

Which of the following nervous system disorders occurs as a result of tangled plaques forming in brain tissue?

• Huntington's disease

• Alzheimer's disease

• Parkinson's disease

The diagram shows the mechanisms that control the concentration of glucose in the blood.

Which row identifies the glands and hormones labelled W, X, Y and Z?

• adrenal gland, adrenaline, adrenal gland, glucagon

• adrenal gland, adrenaline, pancreas, insulin

• pancreas, glucagon, adrenal gland, insulin

• pancreas, insulin, pancreas, glucagon

Tags

NGSS.HS-LS1-3

What is the primary function of myelin in the nervous system?

• To protect the neuron from damage

• To speed up nerve transmission

• To store neurotransmitters

• To connect neurons together

Which part of the neuron is responsible for receiving signals from other neurons?

• Axon

• Dendrite

• Cell body

• Axon terminal

What occurs during the depolarization phase of an action potential?

• The inside of the cell becomes more negative

• The inside of the cell becomes more positive

• The outside of the cell becomes more positive

• The outside of the cell becomes more negative

Tags

NGSS.HS-PS2-5