$\text{Homeostasis} = \text{Stimulus} + \text{Receptor} + \text{Control Center} + \text{Effector}$

Question 1

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

Accepted Answer

Anatomy focuses on the structure of body parts, while physiology focuses on how those parts work.

Question 2

A patient is experiencing a drop in blood pressure. Which feedback mechanism is most likely to restore homeostasis?

Accepted Answer

Negative feedback, which will increase blood pressure back to normal.

Question 3

Which directional term describes the position of the heart relative to the lungs?

Accepted Answer

Medial

Question 4

Which body plane divides the body into right and left halves?

Accepted Answer

Sagittal plane

Question 5

Which of the following is a characteristic of epithelial membranes?

Accepted Answer

They line body cavities and cover surfaces.

Question 6

Which type of cellular transport requires energy in the form of ATP?

Accepted Answer

Active transport

Question 7

Which of the following is NOT a function of serous membranes?

Accepted Answer

Protecting organs from infection

Question 8

Which of the following best describes the difference between intracellular and extracellular fluid?

Accepted Answer

Intracellular fluid is found inside cells, while extracellular fluid is found outside cells.

Question 9

A patient has damage to the dorsal body cavity. Which organ is most likely affected?

Accepted Answer

Brain

Question 10

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

Accepted Answer

Blood clotting after injury

Question 11

Which cellular adhesion is most important for preventing cells from separating under stress, such as in cardiac muscle?

Accepted Answer

Desmosomes

Question 12

Which tissue type is responsible for rapid communication and control in the body?

Accepted Answer

Nervous tissue

Question 13

Which of the following is a function of connective tissue that distinguishes it from epithelial tissue?

Accepted Answer

Support and binding of other tissues

Question 14

Which class of epithelial tissue is best suited for diffusion and filtration, such as in the alveoli of the lungs?

Accepted Answer

Simple squamous epithelium

Question 15

Which of the following cellular receptors is responsible for detecting chemical signals such as hormones?

Accepted Answer

Chemoreceptors

Question 16

A patient is unable to move their arm after an injury. Which tissue is most likely damaged?

Accepted Answer

Muscle tissue

Question 17

Which of the following equations correctly represents the relationship between homeostasis and feedback mechanisms?

Accepted Answer

$	ext{Homeostasis} = 	ext{Stimulus} + 	ext{Receptor} + 	ext{Control Center} + 	ext{Effector}$

Question 18

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

Accepted Answer

Movement of molecules down their concentration gradient without energy input

Question 19

Which serous membrane lines the thoracic cavity and covers the lungs?

Accepted Answer

Pleura

Question 20

A researcher is studying the process of signaling from one cell to another. Which structure is most directly involved in this process?

Accepted Answer

Cellular receptors

Anatomy & Physiology: Introduction, Cells, and Tissues – Study Notes

Study Guide - Practice Questions