Question 1

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

Accepted Answer

Structure determines function, and function reflects structure.

Question 2

A patient is unable to regulate their blood sugar levels due to a failure in a feedback system. Which type of feedback is most likely impaired, and what is the expected consequence?

Accepted Answer

Negative feedback; homeostasis is disrupted, leading to illness such as diabetes.

Question 3

Which of the following best represents the correct order of levels of organization in the human body, from simplest to most complex?

Accepted Answer

Atom → Molecule → Organelle → Cell → Tissue → Organ → Organ System → Organism

Question 4

A scientist is examining the femur (thigh bone) to study its shape and structure. Which sub-discipline of anatomy is being used?

Accepted Answer

Gross anatomy

Question 5

Which organ system is primarily responsible for rapid responses to environmental changes, such as pulling your hand away from a hot surface?

Accepted Answer

Nervous system

Question 6

A molecule of water ($\mathrm{H_2O}$) is considered polar. Which property of water does this polarity directly contribute to?

Accepted Answer

Its high surface tension due to hydrogen bonding

Question 7

A red blood cell is placed in a solution with a pH of 2. Which of the following best describes this solution?

Accepted Answer

It is an acidic solution.

Question 8

Which of the following best describes the anatomical position?

Accepted Answer

Standing upright, facing forward, arms at sides, palms facing forward, feet slightly apart.

Question 9

A cut that divides the body into anterior and posterior sections is made along which plane?

Accepted Answer

Frontal (coronal) plane

Question 10

Which of the following best describes the difference between a cation and an anion?

Accepted Answer

A cation is a positively charged atom, while an anion is negatively charged.

Question 11

A patient is diagnosed with metabolic acidosis, where their blood pH drops below 7.35. Which buffer system is most important in maintaining blood pH, and what is the relevant chemical equation?

Accepted Answer

Bicarbonate buffer; $\mathrm{H^+ + HCO_3^- \rightarrow H_2CO_3}$

Question 12

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

Accepted Answer

Regulation of body temperature around 37$^\circ$C

Question 13

A molecule of glucose ($\mathrm{C_6H_{12}O_6}$) is classified as which of the following?

Accepted Answer

Organic molecule

Question 14

Which of the following best describes the difference between covalent, ionic, and hydrogen bonds?

Accepted Answer

Covalent bonds involve electron sharing, ionic bonds involve electron transfer, and hydrogen bonds are the weakest.

Question 15

A solution has a hydrogen ion concentration of $1 	imes 10^{-4}$ M. What is its pH?

Accepted Answer

$4$

Question 16

Which tissue type is primarily responsible for transmitting electrical impulses throughout the body?

Accepted Answer

Nervous tissue

Question 17

A patient has a tumor located in the mediastinum. In which body cavity is this tumor found?

Accepted Answer

Thoracic cavity

Question 18

Which of the following best describes the atomic number of an element?

Accepted Answer

The number of protons in the nucleus

Question 19

During dehydration synthesis, which of the following occurs?

Accepted Answer

Water is removed to build larger molecules.

Question 20

A patient is lying on their back with their face upward. What is the anatomical term for this position?

Accepted Answer

Supine

Introduction to Anatomy and Physiology: Foundational Concepts and Chemical Principles

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