Question 1

Which of the following is NOT a main role of the lymphatic system?

Accepted Answer

Production of erythrocytes

Question 2

A patient develops lymphedema after lymph node removal. Which mechanism best explains this condition?

Accepted Answer

Accumulation of lymph proximal to the removed nodes due to impaired drainage

Question 3

Which lymphatic trunk drains the digestive organs, including the stomach, intestines, pancreas, liver, and spleen?

Accepted Answer

Intestinal trunk

Question 4

Which of the following cells is primarily responsible for antigen presentation in lymphatic tissue?

Accepted Answer

Dendritic cells

Question 5

A patient with a severe allergic reaction experiences widespread vasodilation and a drop in blood pressure. What is the most likely diagnosis?

Accepted Answer

Anaphylactic shock

Question 6

Which antibody class is most prevalent in the blood and can cross from a pregnant woman to the fetus?

Accepted Answer

IgG

Question 7

During the inflammatory response, which process describes neutrophils squeezing through vessel walls to reach the site of injury?

Accepted Answer

Diapedesis

Question 8

Which structure is the 'guardian of the airways' and prevents food from entering the trachea?

Accepted Answer

Epiglottis

Question 9

According to Boyle’s Law, what happens to the pressure in the lungs when the volume increases during inspiration?

Accepted Answer

Pressure decreases

Question 10

Which equation represents the carbonic acid-bicarbonate buffer system involved in CO$$_2$$ transport?

Accepted Answer

$$\mathrm{CO_2$ + H_2O \rightarrow H_2CO_3 \rightarrow $$HCO_3$$^- + H^+}$$

Question 11

A patient with hypoventilation is likely to develop which of the following conditions?

Accepted Answer

Respiratory acidosis

Question 12

Which of the following best describes the function of surfactant in the lungs?

Accepted Answer

Decreases surface tension to keep alveoli open during exhalation

Question 13

Which of the following formulas correctly represents vital capacity?

Accepted Answer

$$\mathrm{IRV + ERV + TV}$$

Question 14

Which law explains why increasing atmospheric pressure in a hyperbaric oxygen chamber increases the amount of oxygen dissolved in blood?

Accepted Answer

Henry’s Law

Question 15

Which shift in the oxyhemoglobin dissociation curve favors oxygen unloading in tissues?

Accepted Answer

Right-sided shift

Question 16

Which of the following is a function of complement proteins?

Accepted Answer

Opsonization

Question 17

Which type of immunity involves the production of antibodies by the body after vaccination?

Accepted Answer

Active immunity (artificial)

Question 18

Which cell type is responsible for coordinating the immune response by activating B cells and macrophages?

Accepted Answer

Helper T cells (CD4)

Question 19

Which of the following best describes ventilation-perfusion coupling?

Accepted Answer

Matching airflow and blood flow in the lungs

Question 20

A patient at high altitude experiences increased breathing and red blood cell production. Which physiological process is responsible for this adaptation?

Accepted Answer

High-altitude acclimatization

Lymphatic, Immune, and Respiratory Systems: Comprehensive Study Guide

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