Q: Which of the following equations best represents the law of mass balance as it applies to homeostasis?

$$\text{Input} = \text{Output}$$

Question 1

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

Accepted Answer

What a structure can do depends on its specific form.

Question 2

A physiologist is investigating how the heart pumps blood. Which level of structural organization is primarily being studied?

Accepted Answer

Organ system level

Question 3

Which of the following is NOT a necessary life function for humans?

Accepted Answer

Photosynthesis

Question 4

A patient is unable to maintain a stable internal body temperature. Which concept is most directly related to this problem?

Accepted Answer

Homeostasis

Question 5

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

Accepted Answer

Shivering to increase body temperature when cold

Question 6

A scientist is studying the microscopic structure of kidney tissue. Which subdivision of anatomy is this?

Accepted Answer

Histology

Question 7

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

Accepted Answer

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

Question 8

Which of the following is a survival need, but only in the proper amount?

Accepted Answer

Atmospheric pressure

Question 9

A person is exposed to high altitude, where atmospheric pressure is low. Which process is most likely to be directly affected?

Accepted Answer

Gas exchange in the lungs

Question 10

Which of the following best describes the anatomical position?

Accepted Answer

Standing erect, feet slightly apart, arms at sides, palms facing forward

Question 11

A midsagittal section of the body would divide the body into:

Accepted Answer

Equal right and left halves

Question 12

Which organ system is primarily responsible for removing metabolic waste from the blood?

Accepted Answer

Urinary system

Question 13

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

Accepted Answer

Enhancement of labor contractions by oxytocin

Question 14

A patient has a hiatal hernia, where part of the stomach protrudes through the diaphragm into the thoracic cavity. Which body cavity is directly involved?

Accepted Answer

Ventral cavity

Question 15

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

Accepted Answer

They reduce friction between organs in the ventral body cavity.

Question 16

A clinician uses surface anatomy to locate a blood vessel for drawing blood. Which best describes surface anatomy?

Accepted Answer

Study of internal structures as they relate to the overlying skin surface

Question 17

Which of the following equations best represents the law of mass balance as it applies to homeostasis?

Accepted Answer

$$	ext{Input} = 	ext{Output}$$

Question 18

Which of the following is a correct example of systemic anatomy?

Accepted Answer

Studying the heart and all blood vessels throughout the body

Question 19

A patient is experiencing rapid breathing and increased heart rate after a sudden fright. Which necessary life function is most directly involved?

Accepted Answer

Responsiveness

Question 20

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.

Chapter 1: The Human Body – An Orientation (Anatomy & Physiology Study Notes)

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