Question 1

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

Accepted Answer

Anatomy is the study of the structure of body parts, and physiology is the study of how those parts function; both are complementary and inseparable.

Question 2

Which of the following is an example of a negative feedback loop in human physiology?

Accepted Answer

Regulation of body temperature

Question 3

A patient stands up quickly from a lying position and feels dizzy. Which homeostatic mechanism is primarily responsible for restoring their blood pressure?

Accepted Answer

Negative feedback loop involving baroreceptors

Question 4

Which imaging technique is most appropriate for visualizing soft tissue injuries, such as a torn ligament, and why?

Accepted Answer

MRI, because it uses radio waves to produce detailed images of soft tissues

Question 5

Which of the following is NOT a characteristic required for something to be considered living?

Accepted Answer

Ability to move voluntarily

Question 6

A patient presents with an accumulation of fluid in the peritoneal cavity. What is the most likely diagnosis?

Accepted Answer

Ascites

Question 7

Which of the following best describes the anatomical position?

Accepted Answer

Standing erect, facing forward, arms at the sides, palms facing forward, feet slightly apart

Question 8

Which plane divides the body into anterior and posterior portions?

Accepted Answer

Frontal (coronal) plane

Question 9

Which of the following organs is considered retroperitoneal?

Accepted Answer

Kidney

Question 10

A patient is suspected of having a deep vein thrombosis (DVT) in the leg. Which imaging modality is considered the gold standard for diagnosis?

Accepted Answer

Venous ultrasound (venography)

Question 11

Which of the following best describes the function of serous membranes?

Accepted Answer

They secrete a fluid that reduces friction between organs and body walls.

Question 12

Which of the following is an example of extrinsic regulation of homeostasis?

Accepted Answer

Nervous system increasing heart rate during exercise

Question 13

Which imaging technique uses a radioactive tracer to assess metabolic activity in tissues?

Accepted Answer

PET scan

Question 14

Which of the following is a correct sequence in the levels of biological organization from smallest to largest?

Accepted Answer

Cells → Tissues → Organs → Organ Systems → Organism

Question 15

Which of the following best explains why positive feedback loops are less common than negative feedback loops in the human body?

Accepted Answer

Positive feedback loops amplify changes and can quickly move the body away from homeostasis.

Question 16

A patient with a fever of 43°C (109°F) is at risk for which of the following due to a positive feedback loop?

Accepted Answer

Elevated metabolic rate leading to further heat production and potential death

Question 17

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

Accepted Answer

It processes the signal and sends instructions to the effector.

Question 18

Which imaging modality is most appropriate for detecting fresh blood in and around the brain after trauma?

Accepted Answer

CT scan

Question 19

Which of the following is a subdivision of microscopic anatomy?

Accepted Answer

Cytology

Question 20

Which of the following best describes the function of mesenteries in the abdominal cavity?

Accepted Answer

They attach intestinal organs to the abdominal wall.

Introduction to Anatomy and Physiology: Foundations, Homeostasis, and Imaging

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