Question 1

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

Accepted Answer

Anatomy provides the structure that makes physiological functions possible, and physiology gives meaning to anatomical structures.

Question 2

Which of the following correctly lists the levels of the body’s structural hierarchy from simplest to most complex?

Accepted Answer

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

Question 3

A patient is found to have a horseshoe kidney, as shown in the provided images. This is an example of which anatomical concept?

Accepted Answer

Anatomical variation

Question 4

Which of the following is NOT a characteristic of living things?

Accepted Answer

Lack of cellular composition

Question 5

In a negative feedback loop, what is the role of the effector?

Accepted Answer

To carry out the response that balances the original stimulus

Question 6

Which of the following scenarios best illustrates positive feedback?

Accepted Answer

Uterine contractions during childbirth intensifying until delivery

Question 7

A person is exposed to cold weather. Which physiological response is most likely to occur as part of a negative feedback mechanism?

Accepted Answer

Vasoconstriction and shivering

Question 8

Which of the following best describes a gradient in physiology?

Accepted Answer

A difference in chemical concentration, charge, temperature, or pressure between two points

Question 9

Which of the following is an example of matter moving down a gradient?

Accepted Answer

Oxygen diffusing from the alveoli into the blood

Question 10

Which of the following statements about homeostasis is correct?

Accepted Answer

Homeostasis involves detecting changes, activating mechanisms that oppose those changes, and maintaining stable internal conditions.

Question 11

Which of the following best explains why energy is required to move substances against a gradient?

Accepted Answer

Because moving against a gradient requires overcoming the natural tendency of matter and energy to flow from high to low

Question 12

Which of the following is an example of a macromolecule?

Accepted Answer

DNA

Question 13

Which of the following best describes the process of differentiation?

Accepted Answer

The transformation of unspecialized cells into cells with a committed task

Question 14

Which of the following is NOT a correct pairing of anatomical subdiscipline and its focus?

Accepted Answer

Gross anatomy – study of microscopic structures

Question 15

A patient has a genetic mutation that causes a change in the structure of a protein in their red blood cells. Which principle does this best illustrate?

Accepted Answer

Structure determines function

Question 16

Which of the following is true regarding evolution in the context of anatomy and physiology?

Accepted Answer

Evolution is the genetic change in a population from generation to generation.

Question 17

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

Accepted Answer

Regulation of blood pressure by baroreceptors

Question 18

Which of the following best describes the role of a receptor in a feedback loop?

Accepted Answer

It detects changes in the environment and sends information to the control center.

Question 19

Which of the following is an example of a tissue?

Accepted Answer

Muscle

Question 20

Which of the following best explains why no two humans are exactly alike anatomically?

Accepted Answer

Because anatomical variation is common, even among identical twins

Chapter 1: Introduction to Anatomy & Physiology – Study Notes

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