$$P_{gas} = F_{gas} \times P_{total}$$

Question 1

Which of the following best describes the difference between lymphatic fluid and blood?

Accepted Answer

Lymphatic fluid is colorless and has few white blood cells, while blood is red due to hemoglobin and contains both red and white blood cells.

Question 2

Which organ is found in the left upper quadrant of the abdominal cavity and is the largest lymphoid gland?

Accepted Answer

Spleen

Question 3

Which type of connective tissue fiber is found in all lymphatic tissue?

Accepted Answer

Reticular

Question 4

A patient receives a vaccination for Hepatitis B. Three months later, their anti-Hepatitis B antibody level is still adequate. This is an example of:

Accepted Answer

Acquired (adaptive) immunity

Question 5

Which immune system cell is NOT a known blood leukocyte and can recognize cancer cells and viral infected cells without T-helper cell assistance?

Accepted Answer

Natural killer cell

Question 6

Which of the following is NOT a function of the respiratory system?

Accepted Answer

Producing bile for fat digestion

Question 7

During inspiration, which muscles contract to expand the thoracic cavity?

Accepted Answer

Diaphragm and intercostal muscles

Question 8

Which pressure is typically lower than atmospheric pressure and helps keep the lungs inflated?

Accepted Answer

Intrapleural pressure

Question 9

Which of the following best describes the role of the epiglottis in the respiratory system?

Accepted Answer

It prevents food from entering the trachea during swallowing.

Question 10

Which of the following is a correct sequence for the flow of lymph from tissues to the bloodstream?

Accepted Answer

Lymphatic capillaries → lymph nodes → thoracic duct → subclavian vein

Question 11

Which of the following is LEAST likely to filter pathogens?

Accepted Answer

Lacteals

Question 12

Which of the following is a chemical nature of most antigens?

Accepted Answer

Proteins or sugars

Question 13

Which cell type is primarily responsible for the maturation of T lymphocytes?

Accepted Answer

Thymus

Question 14

Which of the following is a function of the complement system in innate immunity?

Accepted Answer

Enhancing inflammation and lysing pathogens

Question 15

A person accidentally sticks a sewing needle into their finger. The skin turns red within 5 minutes and pain develops. This is an example of:

Accepted Answer

Inflammation (innate immunity)

Question 16

Which of the following is NOT one of the three main elements of air?

Accepted Answer

NaCl

Question 17

Which of the following best describes the process of cell-mediated immunity?

Accepted Answer

Activation of T cells to destroy infected cells presenting antigens

Question 18

Which of the following is a correct description of the function of lacteals?

Accepted Answer

They absorb and transport lipids from the small intestine.

Question 19

Which of the following is a correct formula for calculating partial pressure of a gas in a mixture?

Accepted Answer

$$P_{gas} = F_{gas} 	imes P_{total}$$

Question 20

Which of the following best explains how vaccinations improve immunity to a particular infection?

Accepted Answer

By eliciting a primary immune response and generating memory cells for later exposure

Lymphatic and Respiratory Systems: Structure, Function, and Immunity

Study Guide - Practice Questions