FINAL 02 - Nervous System Reporting

Question 1

Specialized protein structures embedded within the cell membrane that allow the passage of specific ions

Answer 1

Ion channels

Question 1

The molecular targets of acetylcholine

Answer 1

Cholinergic receptors

Question 2

What utilizes acetylcholine to transmit signals across synapses to target cells, including other neurons, muscle cells, and glandular cells?

Answer 2

Cholinergic neurons

Question 3

Which nervous system is responsible for the body’s fight or flight response?

Answer 3

Sympathetic

Question 4

These receptors are primarily found in the CNS and in the effector organs of the PNS, such as smooth muscle, cardiac muscle, and glands

Answer 4

Muscarinic receptors

Question 5

What are primarily located post-synaptically on smooth muscle cells in blood vessels, where there activation leads to vasoconstriction, increased blood pressure, and pupil dilation

Answer 5

Alpha receptors

Question 6

Which neurotransmitter is primarily associated with the sympathetic nervous system?

Answer 6

Norepinephrine

Question 7

The cerebellum is primarily responsible for:

Answer 7

B. coordination of movement and balance

Question 8

The sympathetic and parasympathetic nervous systems work independently of each other (T/F)

Answer 8

False

Question 9

Which division of the autonomic nervous system is responsible for slowing down heart rate and promoting digestion?

Answer 9

Parasympathetic

Question 10

Which of the following is not a typical response of the SNS activation?

Answer 10

Dilation of pupils

Question 11

Which part of the nervous system controls involuntary actions such as breathing and heart rate?

Answer 11

D. autonomic nervous system

Question 12

What is the main function of the spinal cord?

Answer 12

C. to transmit nerve signals between the brain and body

Question 13

Which ion plays a key role in depolarization during the generation of an action potential?

Answer 13

A. Sodium (Na+)

Question 14

What is the term for the gap between two neurons where neurotransmitters are released?

Answer 14

A. Synapse

Question 15

What occurs during hyperpolarization?

Answer 15

A. the neurons become more negative than their resting condition

Question 16

Which ion is principally responsible for neuronal repolarization?

Answer 16

C. Potassium

Question 17

What is the role of the threshold potential in action potential generation?

Answer 17

C. It shows the minimum level of depolarization necessary to initiate an action potential

Question 18

Which step of the action potential causes the cell to become less excitable?

Answer 18

C. Hyperpolarization

Question 19

How does the sodium-potassium pump contribute to the production of action potentials?

Answer 19

B. It recovers the resting membrane potential following an action potential

Question 20

4 types of ion channels

Answer 20

Ligand-gated, Mechanically-gated, Leak, Voltage-gated