Question 1

Which of the following best describes the primary function of lymphatic vessels in the human body?

Accepted Answer

They return excess interstitial fluid to the bloodstream and transport lymph.

Question 2

Which equation correctly represents Boyle's Law, which explains how volume changes cause pressure changes in the lungs?

Accepted Answer

$P_1V_1 = P_2V_2$

Question 3

A patient is experiencing rapid breathing (hyperventilation). Which of the following is a likely consequence?

Accepted Answer

Decreased blood carbon dioxide levels leading to alkalosis.

Question 4

Which of the following is NOT a function of lymph nodes?

Accepted Answer

Producing red blood cells in adults.

Question 5

Which of the following best describes the role of MALT (Mucosa-Associated Lymphoid Tissue)?

Accepted Answer

It guards the body's entryways against pathogens at mucosal surfaces.

Question 6

Which of the following immune cells mature in the thymus and are responsible for cellular immunity?

Accepted Answer

T lymphocytes

Question 7

A person inhales deeply, increasing the volume of their thoracic cavity. According to Boyle's Law, what happens to the pressure inside the lungs?

Accepted Answer

Pressure decreases, causing air to flow in.

Question 8

Which of the following is a correct statement about the transport of oxygen in the blood?

Accepted Answer

Oxygen is mostly bound to hemoglobin in red blood cells.

Question 9

Which of the following equations represents the relationship described by Dalton's Law of Partial Pressures?

Accepted Answer

$P_{total} = P_1 + P_2 + P_3 + \ldots$

Question 10

Which of the following best explains the function of surface barriers in the immune system?

Accepted Answer

They act as the first line of defense to keep invaders out of the body.

Question 11

A patient with a deficiency in plasma cells would most likely have problems with which aspect of immunity?

Accepted Answer

Humoral immunity due to reduced antibody production.

Question 12

Which of the following is a correct description of the role of antigen-presenting cells (APCs) in adaptive immunity?

Accepted Answer

They present antigens to T cells to initiate an immune response.

Question 13

Which of the following is a function of the upper respiratory system?

Accepted Answer

Warming, humidifying, and filtering incoming air.

Question 14

Which of the following best describes the effect of increased temperature on oxygen unloading from hemoglobin?

Accepted Answer

It increases oxygen unloading, facilitating oxygen release to tissues.

Question 15

Which of the following is a correct statement about the structure and function of the spleen?

Accepted Answer

It filters blood, removes old red blood cells, and houses immune cells.

Question 16

Which of the following is a correct description of the process of external respiration?

Accepted Answer

Exchange of gases between the alveoli and the blood.

Question 17

A patient has a mutation that prevents the production of BPG (2,3-bisphosphoglycerate) in red blood cells. What effect would this have on oxygen delivery?

Accepted Answer

Oxygen would bind more tightly to hemoglobin, reducing delivery to tissues.

Question 18

Which of the following is a correct statement about the role of the brain stem in respiration?

Accepted Answer

It directly controls the contraction of the diaphragm and intercostal muscles.

Question 19

Which of the following best describes the process of acclimatization to high altitude?

Accepted Answer

Increased red blood cell production and enhanced oxygen delivery.

Question 20

Which of the following is a correct statement about the five antibody classes?

Accepted Answer

IgG is the most abundant antibody in plasma and provides long-term immunity.

Lymphatic, Immune, and Respiratory Systems: Study Guide

Study Guide - Practice Questions

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