Question 1

Which of the following best describes the relationship between anatomy and physiology?

Accepted Answer

Anatomy focuses on structure, and physiology focuses on function; both are interdependent and cannot be fully understood without each other.

Question 2

A patient suffers a deep cut that damages both the skin and underlying muscle. Which levels of biological organization are directly affected?

Accepted Answer

Tissue, organ, and organ system levels

Question 3

Which organ system is primarily responsible for filtering blood and regulating body fluid ion concentration?

Accepted Answer

Urinary system

Question 4

During childbirth, the hormone oxytocin increases uterine contractions, which in turn causes more oxytocin to be released. This is an example of:

Accepted Answer

Positive feedback

Question 5

Which of the following best illustrates the concept of negative feedback in homeostasis?

Accepted Answer

Sweating to reduce body temperature when overheated

Question 6

A person is exposed to cold temperatures, causing their body temperature to drop. Which sequence correctly describes the homeostatic response?

Accepted Answer

Receptor detects change → Control center processes information → Effector initiates response

Question 7

Which organ system is responsible for the production and delivery of sperm in males?

Accepted Answer

Reproductive system

Question 8

If the set point for blood glucose is $100\ \mathrm{mg/dL}$ and a meal raises it to $150\ \mathrm{mg/dL}$, which homeostatic mechanism is most likely to occur?

Accepted Answer

Negative feedback lowers glucose toward the set point

Question 9

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

Accepted Answer

Protection from the external environment

Question 10

A patient with a damaged hypothalamus may have difficulty regulating which of the following?

Accepted Answer

Body temperature and hormone release

Question 11

Which of the following best describes the function of the cardiovascular system?

Accepted Answer

Transports cells and dissolved substances such as nutrients, wastes, and gases

Question 12

A person is experiencing high blood pressure. Which of the following best describes how negative feedback would restore homeostasis?

Accepted Answer

The control center signals effectors to lower blood pressure toward the set point

Question 13

Which of the following is an example of an organ system working together with another to maintain homeostasis?

Accepted Answer

The digestive system absorbing nutrients and the cardiovascular system transporting them to cells

Question 14

Which of the following best defines homeostasis?

Accepted Answer

The maintenance of a stable internal environment despite external changes

Question 15

A person is running a marathon and begins to sweat profusely. Which organ system is primarily responsible for this response, and what is its main function in this scenario?

Accepted Answer

Integumentary system; regulating body temperature

Question 16

Which of the following is a correct sequence of increasing complexity in the levels of biological organization?

Accepted Answer

Cell → Tissue → Organ → Organ system → Organism

Question 17

A patient has a blocked lymphatic vessel. Which of the following is a likely consequence?

Accepted Answer

Reduced ability to filter interstitial fluid and fight infection

Question 18

Which of the following best describes the role of effectors in a homeostatic mechanism?

Accepted Answer

They carry out responses to restore homeostasis

Question 19

If a person’s blood pH drops below the normal range, which type of feedback mechanism is most likely to be activated to restore balance?

Accepted Answer

Negative feedback to increase pH back toward normal

Question 20

Which of the following scenarios best demonstrates the interdependence of structure and function in anatomy and physiology?

Accepted Answer

The shape of the elbow joint bones limits the direction of arm movement

Introduction to Anatomy & Physiology: Foundations, Organization, and Homeostasis

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