Question 1

Which of the following best describes the principle of complementarity in anatomy and physiology?

Accepted Answer

The function of a body part is determined by its structure, and vice versa.

Question 2

A patient is lying face up on an examination table. Which anatomical term best describes this position?

Accepted Answer

Supine

Question 3

If a cut separates the body into anterior and posterior portions, which plane has been used?

Accepted Answer

Coronal (frontal) plane

Question 4

Which directional term would best describe the nose in relation to the ears?

Accepted Answer

Medial

Question 5

A patient has a wound on the right forearm that is closer to the wrist than to the elbow. Which term best describes the location of the wound relative to the elbow?

Accepted Answer

Distal

Question 6

Which of the following best describes the function of tight junctions between cells?

Accepted Answer

They create a leak-proof barrier by linking cell membranes tightly together.

Question 7

Which of the following is true regarding osmosis?

Accepted Answer

Water moves from an area of lower solute concentration to an area of higher solute concentration.

Question 8

A red blood cell is placed in a solution and begins to shrink. Which of the following best describes the solution?

Accepted Answer

Hypertonic

Question 9

Which of the following best describes secondary active transport across a cell membrane?

Accepted Answer

It relies on the movement of one substance down its concentration gradient to drive the movement of another substance against its gradient.

Question 10

Which membrane protein function is responsible for receiving chemical signals such as hormones and initiating a cellular response?

Accepted Answer

Receptor for signal transduction

Question 11

A solution contains a higher concentration of solutes than the cytoplasm of a cell. What will happen to the cell if it is placed in this solution?

Accepted Answer

The cell will shrink as water leaves by osmosis.

Question 12

Which of the following best describes the function of desmosomes (anchoring junctions)?

Accepted Answer

They anchor neighboring cells together using intermediate filaments.

Question 13

Which of the following is a correct statement about the plasma membrane according to the fluid mosaic model?

Accepted Answer

Proteins and lipids can move laterally within the layer, giving the membrane flexibility.

Question 14

Which of the following best describes facilitated diffusion?

Accepted Answer

Movement of molecules down their concentration gradient with the help of a membrane protein, without energy input.

Question 15

A cell is placed in a hypotonic solution. What is the most likely outcome?

Accepted Answer

The cell will gain water and swell.

Question 16

Which of the following is NOT a function of membrane proteins?

Accepted Answer

Providing a rigid, inflexible structure to the membrane

Question 17

Which of the following best describes the movement of sodium and glucose in secondary active transport?

Accepted Answer

Sodium moves down its concentration gradient, providing energy for glucose to move against its gradient.

Question 18

Which of the following equations best represents the relationship for diffusion rate (Fick's Law)?

Accepted Answer

$$D = k \frac{A (C_1$ - C_2$)}{d}$$

Question 19

Which of the following best describes the term 'ipsilateral'?

Accepted Answer

On the same side of the body

Question 20

A patient has a tumor located in the mediastinum. Which of the following organs could be affected?

Accepted Answer

Heart

Anatomy & Physiology: Directional Terms and Body Organization

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