Question 1

Which of the following best describes the principle of complementarity of structure and function in anatomy and physiology?

Accepted Answer

Function always reflects structure; what a structure can do depends on its specific form.

Question 2

A patient is unable to maintain a stable internal temperature despite changes in the external environment. Which concept is most directly related to this inability?

Accepted Answer

Homeostasis

Question 3

Which of the following is NOT one of the four basic tissue types found in the human body?

Accepted Answer

Skeletal

Question 4

Which subdivision of anatomy would most likely be used to study the microscopic structure of kidney nephrons?

Accepted Answer

Microscopic anatomy

Question 5

A scientist is studying the chemical reactions that occur within individual liver cells. Which subdivision of physiology is she most likely working in?

Accepted Answer

Cellular physiology

Question 6

Which of the following best illustrates a negative feedback mechanism in the human body?

Accepted Answer

Release of insulin to lower blood glucose after a meal

Question 7

Which of the following is the correct sequence of structural organization in the human body, from simplest to most complex?

Accepted Answer

Chemical, cell, tissue, organ, organ system, organism

Question 8

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

Accepted Answer

Water

Question 9

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

Accepted Answer

Receives output from the control center and produces a response

Question 10

Which of the following equations best represents the relationship between catabolism, anabolism, and metabolism?

Accepted Answer

$$Metabolism = Catabolism + Anabolism$$

Question 11

A patient has a disease that prevents the separation of internal and external environments in the body. Which necessary life function is most directly affected?

Accepted Answer

Maintain boundaries

Question 12

Which of the following is an example of a positive feedback mechanism?

Accepted Answer

Enhancement of labor contractions by oxytocin

Question 13

If the control center in a homeostatic system malfunctions and cannot determine the set point, what is the most likely consequence?

Accepted Answer

Homeostasis will be disrupted, leading to possible disease

Question 14

Which of the following best describes the afferent pathway in a homeostatic control system?

Accepted Answer

It carries information from the receptor to the control center

Question 15

Which of the following is a direct result of the loss of homeostatic control in the body?

Accepted Answer

Increased risk of disease and contribution to aging

Question 16

A 70-year-old patient is experiencing less efficient control systems and increased risk of disease. Which physiological concept best explains these changes?

Accepted Answer

Disturbance of homeostasis due to aging

Question 17

Which of the following best describes the function of plasma membranes in maintaining boundaries?

Accepted Answer

They separate internal and external environments of the cell

Question 18

Which of the following is a requirement for life that is directly involved in all chemical reactions in the body?

Accepted Answer

ATP (energy)

Question 19

A patient with heart failure is experiencing destructive positive feedback. What is the most likely outcome if this continues unchecked?

Accepted Answer

Progressive worsening of the condition

Question 20

Which of the following best explains why oxygen is essential for human survival?

Accepted Answer

It is required for the release of energy from food molecules

Introduction to Anatomy & Physiology: Key Concepts and Principles

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