Question 1

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

Accepted Answer

To defend the body against pathogens and foreign substances

Question 2

Pathogens are best defined as:

Accepted Answer

Microorganisms or agents that cause disease

Question 3

Which statement correctly distinguishes between innate (nonspecific) and adaptive (specific) defenses?

Accepted Answer

Innate defenses are present at birth and respond quickly, while adaptive defenses develop over time and are pathogen-specific.

Question 4

What is the role of memory B cells during a second infection?

Accepted Answer

They immediately recognize and respond to the pathogen, producing antibodies more rapidly.

Question 5

Lymph fluid is mostly made of ______ that leaks from ______.

Accepted Answer

Plasma; capillaries

Question 6

Which organ is responsible for the maturation of T cells?

Accepted Answer

Thymus

Question 7

An enlarged spleen most commonly indicates:

Accepted Answer

An increased immune response or infection

Question 8

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

Accepted Answer

Maturing T cells

Question 9

Where are antibodies produced in the body?

Accepted Answer

By B cells in the bone marrow

Question 10

Which of the following best describes the main function of the digestive system?

Accepted Answer

To break down food and absorb nutrients

Question 11

Bile is produced in the ______ and stored in the ______.

Accepted Answer

Liver; gallbladder

Question 12

Where does bile work in digestion, and what is its primary function?

Accepted Answer

In the small intestine; it emulsifies fats

Question 13

Which enzyme acts in the mouth to begin the breakdown of carbohydrates?

Accepted Answer

Amylase

Question 14

Which accessory organ of the digestive system produces enzymes that help digest proteins, fats, and carbohydrates?

Accepted Answer

Pancreas

Question 15

Which of the following is a correct sequence for the passage of food through the digestive tract?

Accepted Answer

Mouth → Esophagus → Stomach → Small intestine → Large intestine

Question 16

Which of the following best describes the function of the white pulp in the spleen?

Accepted Answer

It filters pathogens and produces immune cells

Question 17

A patient has a deficiency in pepsin. Which process would be most affected?

Accepted Answer

Digestion of proteins in the stomach

Question 18

Which of the following equations correctly represents the breakdown of starch by amylase?

Accepted Answer

$$	ext{Starch} + 	ext{Amylase} ightarrow 	ext{Maltose}$$

Question 19

If the lymphatic vessels are blocked, which of the following is most likely to occur?

Accepted Answer

Swelling due to fluid accumulation (edema)

Question 20

Which of the following best explains why adaptive immunity is slower to respond during a first infection but faster during a second infection?

Accepted Answer

Memory cells are generated after the first infection, allowing a rapid response upon re-exposure.

Immune, Lymphatic, and Digestive Systems: Study Guide for Anatomy & Physiology

Guida di studio - Domande di pratica