Question 1

Which of the following best illustrates the principle of complementarity of structure and function in the human body?

Accepted Answer

The thin walls of alveoli in the lungs allow for efficient gas exchange.

Question 2

A patient is unable to sweat due to a genetic disorder. Which necessary life function is most directly impaired?

Accepted Answer

Excretion

Question 3

Which of the following is an example of negative feedback in homeostatic control?

Accepted Answer

Regulation of blood glucose by insulin

Question 4

A scientist is studying the microscopic structure of liver tissue. Which subdivision of anatomy is she using?

Accepted Answer

Histology

Question 5

Which organ system is primarily responsible for eliminating nitrogenous wastes and regulating water balance?

Accepted Answer

Urinary system

Question 6

A person is exposed to high altitude, where atmospheric pressure is lower than at sea level. Which survival need is most directly affected?

Accepted Answer

Appropriate atmospheric pressure

Question 7

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

Accepted Answer

It determines the set point and initiates the appropriate response.

Question 8

A patient with diabetes mellitus has difficulty regulating blood glucose levels. Which component of the homeostatic control system is most likely malfunctioning?

Accepted Answer

Control center (pancreas)

Question 9

Which of the following is NOT a necessary life function?

Accepted Answer

Respiration

Question 10

A researcher is examining the effects of electrical currents on heart muscle contraction. Which discipline is she most likely studying?

Accepted Answer

Cardiovascular physiology

Question 11

Which of the following best describes the hierarchical organization of the human body from simplest to most complex?

Accepted Answer

Chemical, cellular, tissue, organ, organ system, organismal

Question 12

Which of the following is an example of positive feedback?

Accepted Answer

Enhancement of labor contractions by oxytocin

Question 13

A person is suffering from dehydration. Which survival need is most directly compromised?

Accepted Answer

Water

Question 14

Which of the following best explains why the skin is considered important for maintaining boundaries?

Accepted Answer

It separates the internal environment from the external environment.

Question 15

If the rate of chemical reactions in the body decreases due to a drop in body temperature, which survival need is not being maintained?

Accepted Answer

Normal body temperature

Question 16

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

Accepted Answer

It picks up fluid leaked from blood vessels and houses immune cells.

Question 17

A person is unable to move their arm after a stroke. Which necessary life function is most directly affected?

Accepted Answer

Movement

Question 18

Which of the following is a correct statement about metabolism?

Accepted Answer

It is the sum of all chemical reactions in body cells.

Question 19

A patient has a genetic defect that prevents the formation of certain proteins. Which survival need is most directly impacted?

Accepted Answer

Proteins

Question 20

Which of the following best describes the role of effectors in homeostatic control?

Accepted Answer

They provide the means to respond to a stimulus.

Introduction to Anatomy & Physiology: Structure, Function, and Organization

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