8.2 Nervous System Questions - Group 1 (Review)

Question 1

Synaptic vesicles contain ___________________.

Answer 1

Neurotransmitters

Question 2

What ion moves synaptic vesicles to the plasma membrane of the neuron?

Answer 2

Calcium

Question 3

The synaptic vesicle attaches to the plasma membrane of the end of a neuron and releases its neurotransmitters into the synaptic cleft. This is called __________.

Answer 3

Exocytosis

Question 4

There are chemical-gated channels in the ______________ of the skeletal muscle cells.

Answer 4

Sarcolemma

Question 5

Chemical-gated channels are also called:

Answer 5

Ligand-gated

Question 6

Chemical-gated channels that allow sodium to enter are also called:

Answer 6

Sodium gated channel proteins

Question 7

Sodium always enters a channel by diffusion because sodium is higher in the _____________ than the ICF.

Answer 7

ECF

Question 8

ICF stands for _______________. (fluid inside the cell)

Answer 8

Intracellular Fluid

Question 9

ECF stands for _______________. (fluid outside the cell)

Answer 9

Extracellular Fluid

Question 10

Chemical-gated channels of muscles and neurons are opened by _____________.

Answer 10

Neurotransmitters

Question 11

What neurotransmitter was used in skeletal muscle to open the chemical sodium gated channels?

Answer 11

Acetylcholine

Question 12

A neuromuscular junction contains the axon of a motor neuron, a ____________, and the sarcolemma of a muscle cell.

Answer 12

Synaptic cleft

Question 13

Electrical current is caused by the ion,____________.

Answer 13

Sodium