Q: During the resting potential of a neuron, which of the following statements is correct regarding the distribution of ions?

There is a higher concentration of $$\text{Na}^+$$ outside the cell and a higher concentration of $$\text{K}^+$$ inside the cell.

Q: During coagulation, which of the following equations best represents the conversion of fibrinogen to fibrin?

$$\text{Fibrinogen} \xrightarrow{\text{Thrombin}} \text{Fibrin}$$

Question 1

Which of the following best describes the difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?

Accepted Answer

The CNS consists of the brain and spinal cord, while the PNS includes all nerves outside the CNS.

Question 2

A patient is experiencing increased heart rate and dilated pupils after a stressful event. Which division of the nervous system is primarily responsible for these responses?

Accepted Answer

Sympathetic division of the autonomic nervous system

Question 3

Which of the following is NOT a function of neuroglia?

Accepted Answer

Transmitting electrical impulses

Question 4

During the resting potential of a neuron, which of the following statements is correct regarding the distribution of ions?

Accepted Answer

There is a higher concentration of $$	ext{Na}^+$$ outside the cell and a higher concentration of $$	ext{K}^+$$ inside the cell.

Question 5

Which structure of a neuron is primarily responsible for receiving signals from other neurons?

Accepted Answer

Dendrites

Question 6

A neurotransmitter is released into the synaptic cleft. What is its primary function?

Accepted Answer

To transmit the nerve impulse from one neuron to another across the synaptic cleft

Question 7

Which brain division is responsible for regulating vital functions such as breathing and heart rate?

Accepted Answer

Brain stem

Question 8

Which hormone is produced by the pancreas and lowers blood glucose levels by promoting cellular uptake of glucose?

Accepted Answer

Insulin

Question 9

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands release hormones directly into the bloodstream, while exocrine glands release their products through ducts.

Question 10

A patient with low blood calcium levels is likely to have increased secretion of which hormone?

Accepted Answer

Parathyroid hormone (PTH)

Question 11

Which of the following is a major function of blood?

Accepted Answer

Transporting oxygen, nutrients, and waste products

Question 12

Which component of blood is responsible for clot formation during hemostasis?

Accepted Answer

Platelets

Question 13

A person with blood type A has which antigens and antibodies present?

Accepted Answer

A antigens on erythrocytes and anti-B antibodies in plasma

Question 14

During coagulation, which of the following equations best represents the conversion of fibrinogen to fibrin?

Accepted Answer

$$	ext{Fibrinogen} \xrightarrow{	ext{Thrombin}} 	ext{Fibrin}$$

Question 15

Which hormone is released by the adrenal glands during a 'fight or flight' response?

Accepted Answer

Epinephrine

Question 16

Which of the following best describes the function of erythropoietin?

Accepted Answer

Stimulates production of red blood cells in the bone marrow

Question 17

A patient is given a blood transfusion with mismatched blood type. Which of the following is most likely to occur?

Accepted Answer

Agglutination of erythrocytes due to antibody-antigen reaction

Question 18

Which of the following is a correct sequence of events during an action potential?

Accepted Answer

Depolarization, repolarization, restoration of resting potential

Question 19

Which equation best represents the relationship between blood pH and hydrogen ion concentration?

Accepted Answer

$$	ext{pH} = -\log_{10}[	ext{H}^+]$$

Question 20

Which of the following best describes the role of the hypothalamus in the endocrine system?

Accepted Answer

It produces releasing and inhibiting hormones that control the pituitary gland.

Study Notes: The Nervous System, Endocrine System, and Blood

Study Guide - Practice Questions

Study Guide - Flashcards