Question 1

Which of the following best describes the primary function of the lymphatic system?

Accepted Answer

Returning interstitial fluid to the bloodstream and participating in immune defense

Question 2

Which of the following is a primary lymphatic organ?

Accepted Answer

Thymus

Question 3

Which of the following is NOT a component of the first line of defense in the immune system?

Accepted Answer

Cytotoxic T cells

Question 4

A patient is exposed to a virus for the first time. Which immune response is primarily responsible for eliminating the virus during this initial exposure?

Accepted Answer

Innate immune response

Question 5

Which of the following white blood cells is most effective at eliminating parasitic infections?

Accepted Answer

Eosinophils

Question 6

Which of the following best describes the role of MHC II molecules?

Accepted Answer

Present antigens to helper T cells

Question 7

During hemostasis, which process occurs immediately after vascular spasm?

Accepted Answer

Platelet plug formation

Question 8

Which plasma protein is primarily responsible for maintaining osmotic pressure in the blood?

Accepted Answer

Albumin

Question 9

A patient has a mutation in the gene encoding hepcidin. Which process is most likely to be disrupted?

Accepted Answer

Iron homeostasis

Question 10

Which of the following equations correctly represents cardiac output?

Accepted Answer

$$CO = HR 	imes SV$$

Question 11

Which of the following changes would most likely increase blood pressure?

Accepted Answer

Increased vessel length

Question 12

Which of the following best describes the function of baroreceptors?

Accepted Answer

Detect changes in blood pressure

Question 13

A patient with a deficiency in transferrin would most likely experience which of the following?

Accepted Answer

Impaired iron transport in the blood

Question 14

Which of the following is the correct sequence of electrical conduction in the heart?

Accepted Answer

SA node → AV node → AV bundle → Bundle branches → Purkinje fibers

Question 15

Which of the following best describes the role of helper T cells in the immune response?

Accepted Answer

Activate other immune cells by releasing cytokines

Question 16

Which of the following is a function of the complement system?

Accepted Answer

Form membrane attack complexes to lyse pathogens

Question 17

A patient presents with chronic inflammation and elevated levels of neutrophils. Which type of infection is most likely?

Accepted Answer

Bacterial infection

Question 18

Which of the following best describes the relationship between resistance and blood flow, according to Poiseuille’s Law?

Accepted Answer

$$F = \frac{\Delta P}{R}$$

Question 19

Which of the following is a distinguishing feature of veins compared to arteries?

Accepted Answer

Presence of valves to prevent backflow

Question 20

A patient is experiencing an allergic reaction. Which class of antibody is most likely elevated?

Accepted Answer

IgE

Study Guide: Immune Response, Blood, and Cardiovascular Physiology

Study Guide - Practice Questions

Study Guide - Flashcards