Question 1

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

Accepted Answer

The specific structure of a body part enables and limits its particular function.

Question 2

Which imaging technique is most appropriate for visualizing soft tissue injuries, such as a torn ligament in the knee?

Accepted Answer

Magnetic Resonance Imaging (MRI)

Question 3

A patient presents with an inability to regulate blood glucose levels. Which organ system is primarily responsible for this function?

Accepted Answer

Endocrine system

Question 4

Which of the following is NOT a component required for a homeostatic control system?

Accepted Answer

Stimulus

Question 5

The law of mass balance states that:

Accepted Answer

The amount of a substance in the body must remain constant over time, so any gain must be offset by an equal loss.

Question 6

Which organ system is responsible for providing movement and generating heat in the body?

Accepted Answer

Muscular system

Question 7

A homeostatic system must contain which of the following elements?

Accepted Answer

Stimulus, receptor, control center, effector

Question 8

Which of the following best illustrates negative feedback in human physiology?

Accepted Answer

Regulation of body temperature around a set point

Question 9

If the regulated variable in a homeostatic system is blood pressure, which of the following would be considered the effector?

Accepted Answer

Smooth muscle in the walls of blood vessels

Question 10

Which organ system is primarily responsible for the exchange of oxygen and carbon dioxide between the body and the atmosphere?

Accepted Answer

Respiratory system

Question 11

Which of the following is an example of a homeostatic imbalance?

Accepted Answer

Development of diabetes mellitus due to failure of insulin regulation

Question 12

Which of the following best describes the difference between steady state and equilibrium in physiological systems?

Accepted Answer

Steady state requires energy input to maintain, while equilibrium does not.

Question 13

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

Accepted Answer

Urinary system

Question 14

Which of the following is a controlled variable in a homeostatic system?

Accepted Answer

Blood glucose concentration itself

Question 15

Which of the following equations best represents the law of mass balance in physiology?

Accepted Answer

$$Accumulation = Input - Output$$

Question 16

Which organ system is responsible for protecting the body from environmental hazards and regulating body temperature?

Accepted Answer

Integumentary system

Question 17

A patient is unable to mount an appropriate immune response to infection. Which organ system is most likely compromised?

Accepted Answer

Lymphatic system

Question 18

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

Accepted Answer

They carry out the response that restores the regulated variable to its set point.

Question 19

Which organ system is responsible for producing hormones that regulate metabolism, growth, and reproduction?

Accepted Answer

Endocrine system

Question 20

Which of the following is a correct sequence of levels of organization in the human body, from smallest to largest?

Accepted Answer

Molecule, cell, tissue, organ, organ system

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

Study Guide - Practice Questions