Question 1

A patient is stabbed in the chest and the knife penetrates the serous membranes surrounding the lungs. Which layer does the knife pierce first?

Accepted Answer

Parietal pleura

Question 2

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

Accepted Answer

It lubricates organs and reduces friction as organs move against adjacent structures.

Question 3

A surgeon needs to access the heart for surgery. Which serous membrane must be incised to reach the heart muscle directly?

Accepted Answer

Visceral pericardium

Question 4

Which of the following is NOT an example of a negative feedback loop?

Accepted Answer

Blood clotting

Question 5

Which feedback mechanism is responsible for the amplification of uterine contractions during childbirth?

Accepted Answer

Positive feedback

Question 6

Which of the following best summarizes the principle of complementarity of structure and function?

Accepted Answer

Structure determines function.

Question 7

A patient has a tumor located in the left upper quadrant (LUQ) of the abdominopelvic cavity. Which organ is most likely affected?

Accepted Answer

Stomach

Question 8

Which anatomical directional term means 'toward the midline of the body'?

Accepted Answer

Medial

Question 9

Which region of the abdominopelvic cavity lies between the two iliac regions?

Accepted Answer

Hypogastric

Question 10

Which of the following is the correct sequence for a negative feedback loop?

Accepted Answer

Stimulus, receptor, control center, effector, response

Question 11

If your blood pressure is too high, what should homeostatic regulation do?

Accepted Answer

Bring your blood pressure back to the normal range.

Question 12

Which of the following is a true statement about homeostasis?

Accepted Answer

It is crucial for the survival and functioning of organisms.

Question 13

Which plane divides the body into superior and inferior parts?

Accepted Answer

Transverse (horizontal) plane

Question 14

A patient is diagnosed with peritonitis. Which serous membrane is inflamed?

Accepted Answer

Peritoneum

Question 15

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

Accepted Answer

The effector opposes the initial stimulus and shuts off when conditions return to the normal range.

Question 16

Which of the following cavities is NOT found within the anterior (ventral) body cavity?

Accepted Answer

Cranial cavity

Question 17

A person goes outside on a hot summer day and their body temperature rises above the normal range. Which part of the feedback loop detects this change?

Accepted Answer

Receptor

Question 18

Which anatomical directional term means 'farther from the point of attachment or origin'?

Accepted Answer

Distal

Question 19

Which of the following best defines homeostasis?

Accepted Answer

The maintenance of a relatively constant internal environment.

Question 20

Which serous membrane directly contacts and surrounds the liver?

Accepted Answer

Visceral peritoneum

Anatomical Terminology, Body Cavities, and Homeostasis: Study Guide Ch. 1 4-5

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