Question 1

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

Accepted Answer

Anatomy is the study of the structure of body parts, while physiology is the study of how those parts function.

Question 2

A tennis player swings a racket, using energy produced by mitochondria in muscle cells. Which levels of structural organization are involved in this action? (Select the most complete answer.)

Accepted Answer

Chemical, cellular, tissue, organ, organ system, and organismal levels

Question 3

Which organ system is primarily responsible for eliminating nitrogenous wastes from the body?

Accepted Answer

Urinary system

Question 4

In the regulation of blood glucose, which organ acts as the primary control center?

Accepted Answer

Pancreas

Question 5

Which of the following best describes a negative feedback mechanism?

Accepted Answer

The response shuts off or reduces the intensity of the original stimulus.

Question 6

A patient has a break in a blood vessel wall. Platelets adhere to the site and release chemicals that attract more platelets, forming a clot. This is an example of:

Accepted Answer

Positive feedback

Question 7

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Eliminating nitrogenous wastes

Question 8

Which body cavity contains the heart and lungs?

Accepted Answer

Thoracic cavity

Question 9

A patient is experiencing a homeostatic imbalance due to uncontrolled diabetes. Which of the following best explains this situation?

Accepted Answer

Negative feedback mechanisms are overwhelmed, allowing destructive positive feedback mechanisms to take over.

Question 10

Which of the following best describes the function of serous membranes?

Accepted Answer

They line body cavities closed to the exterior and produce lubricating fluid.

Question 11

Which of the following is the correct order of structural organization from simplest to most complex?

Accepted Answer

Atom, molecule, cell, tissue, organ, organ system, organism

Question 12

Which of the following equations best represents the concept of homeostasis in terms of feedback control?

Accepted Answer

$$\Delta S = S_{final} - S_{set\ point}$$

Question 13

A person is exposed to a hot environment, causing their body temperature to rise. Which sequence correctly describes the negative feedback response?

Accepted Answer

Stimulus → Receptor → Control Center → Effector → Response

Question 14

Which membrane directly covers the surface of the heart?

Accepted Answer

Visceral pericardium

Question 15

Which organ system is responsible for distributing oxygen and nutrients to body cells and removing wastes?

Accepted Answer

Cardiovascular system

Question 16

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

Accepted Answer

Blood clotting

Question 17

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

Accepted Answer

It determines the set point and analyzes input to coordinate a response.

Question 18

Which of the following body cavities is correctly matched with the organs it contains?

Accepted Answer

Abdominal cavity – digestive viscera

Question 19

A patient has a buildup of fluid between the parietal and visceral layers of the pericardium. This fluid is found in which space?

Accepted Answer

Pericardial cavity

Question 20

Which of the following best explains why the body uses negative feedback mechanisms more commonly than positive feedback mechanisms?

Accepted Answer

Negative feedback mechanisms maintain stability by reversing deviations from a set point.

Introduction to Anatomy & Physiology: Structural Organization, Homeostasis, and Body Cavities

Guida di studio - Domande di pratica

Study guide - Flashcard