Question 1

Which of the following best describes the difference between gross anatomy and microscopic anatomy?

Accepted Answer

Gross anatomy examines structures visible to the naked eye, while microscopic anatomy examines structures too small to be seen without magnification.

Question 2

A patient is unable to maintain a stable internal body temperature after exposure to cold weather. Which necessary life function is most directly impaired?

Accepted Answer

Maintain internal environment

Question 3

Which directional term would best describe the position of the heart relative to the lungs?

Accepted Answer

Medial

Question 4

A surgeon makes a cut that divides the body into right and left parts. Which anatomical plane is this?

Accepted Answer

Sagittal plane

Question 5

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

Accepted Answer

Shivering to increase body temperature when cold

Question 6

Which of the following best explains why water is considered a vital inorganic compound in the body?

Accepted Answer

It acts as the body's major transport medium and an excellent solvent.

Question 7

A solution contains 0.5 moles of NaCl dissolved in 1 liter of water. What is the molarity $$M of $$this solution?

Accepted Answer

$$M = 0.5 \text{ mol/L}$$

Question 8

Which of the following statements about isotopes is correct?

Accepted Answer

Isotopes have the same number of protons but different numbers of neutrons.

Question 9

Which of the following best describes a covalent bond?

Accepted Answer

A bond formed by the sharing of pairs of electrons between atoms.

Question 10

During a chemical reaction, the equation $$2H_2 + O_2$ \rightarrow 2H_2O is $$written. What are the reactants in this reaction?

Accepted Answer

$$2H_2$$ and $$O_2$$

Question 11

Which of the following factors would increase the rate of a chemical reaction in the body?

Accepted Answer

Adding a catalyst

Question 12

A patient is experiencing muscle cramps due to an electrolyte imbalance. Which salt, when deficient, is most likely responsible for this condition?

Accepted Answer

KCl (potassium chloride)

Question 13

Which of the following best describes the function of serous membranes in body cavities?

Accepted Answer

They produce a lubricating fluid that reduces friction between organs.

Question 14

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

Accepted Answer

Blood clotting after a vessel injury

Question 15

A solution is described as a homogeneous mixture. Which of the following best describes this type of mixture?

Accepted Answer

The composition is uniform throughout and the components cannot be distinguished.

Question 16

Which of the following best explains why water has a high heat of vaporization?

Accepted Answer

A large amount of heat is required to break the hydrogen bonds that hold water molecules together.

Question 17

Which of the following is NOT a function of proteins in the human body?

Accepted Answer

Serving as a major energy storage molecule

Question 18

Which of the following best describes the anatomical position?

Accepted Answer

Body is erect, feet slightly apart, arms at sides, and palms facing forward.

Question 19

A patient has a wound on the anterior surface of the forearm. Where is the wound located?

Accepted Answer

On the front of the forearm

Question 20

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

Accepted Answer

It determines the set point at which a variable is to be maintained and processes input from receptors.

Foundations of Anatomy & Physiology: Structural Organization, Chemistry, and Body Systems

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