Question 1

Which of the following best illustrates the principle that structure determines function in human anatomy?

Accepted Answer

The thin alveolar walls in the lungs facilitate rapid gas exchange.

Question 2

A patient is experiencing difficulty maintaining a stable blood glucose level. Which component of the homeostatic control system is most likely malfunctioning if the pancreas fails to release insulin in response to high blood glucose?

Accepted Answer

Effector

Question 3

Which of the following is an example of positive feedback in the human body?

Accepted Answer

Amplification of uterine contractions during childbirth

Question 4

Arrange the following levels of organization in the correct order from simplest to most complex: tissue, cell, organ, molecule.

Accepted Answer

Molecule → cell → tissue → organ

Question 5

A sudden drop in blood pressure is detected by baroreceptors. The brain interprets this change and signals the heart to increase its rate. In this scenario, what role does the heart play?

Accepted Answer

Effector

Question 6

Which tissue type is primarily responsible for movement in the human body?

Accepted Answer

Muscle

Question 7

If a person’s body temperature rises above $$37\ ^\circ \mathrm{C}$$, which feedback mechanism is most likely to be activated?

Accepted Answer

Negative feedback

Question 8

Which of the following best describes homeostasis?

Accepted Answer

The body’s ability to maintain stable internal conditions within a normal range despite external changes.

Question 9

A person with a homeostatic imbalance in blood pH may develop which of the following conditions?

Accepted Answer

Acidosis or alkalosis

Question 10

Which of the following is NOT a function of connective tissue?

Accepted Answer

Movement

Question 11

During blood clotting, platelets release chemicals that attract more platelets to the site of injury. This is an example of:

Accepted Answer

Positive feedback

Question 12

Which organ system is primarily responsible for controlling and coordinating the activities of other systems?

Accepted Answer

Nervous system

Question 13

If the control center fails to interpret input from the receptor, which of the following is most likely to occur?

Accepted Answer

Homeostasis will be disrupted, potentially leading to disease.

Question 14

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

Accepted Answer

Anatomy is the study of structure, and physiology is the study of function.

Question 15

A patient’s blood pressure is consistently above normal. Which homeostatic variable is out of range, and what is the likely consequence?

Accepted Answer

Blood pressure; risk of hypertension-related disease

Question 16

Which of the following is a multi-step process involving both negative feedback and multiple organ systems?

Accepted Answer

Regulation of blood glucose by insulin and glucagon

Question 17

Which tissue type is most likely to be involved in the detection of environmental changes?

Accepted Answer

Nervous tissue

Question 18

A person’s body temperature fluctuates between $$36.5\ ^\circ \mathrm{C}$$ and $$37.5\ ^\circ \mathrm{C}$$ throughout the day. This is best described as:

Accepted Answer

Dynamic homeostasis

Question 19

Which of the following is NOT considered a major theme in anatomy and physiology?

Accepted Answer

Randomness of physiological processes

Question 20

If a person’s blood oxygen level drops, which sequence correctly describes the homeostatic response?

Accepted Answer

Receptor detects change → control center interprets → effector responds

Anatomy, Physiology, and Homeostasis: Foundational Concepts

Study Guide - Practice Questions

Study Guide - Flashcards