Question 1

Which of the following best describes the function of serous membranes in the ventral body cavity?

Accepted Answer

They reduce friction and allow organ movement by producing serous fluid.

Question 2

A patient presents with a burn that affects the epidermis and part of the dermis. Which degree of burn is this, and what is the expected healing process?

Accepted Answer

2nd degree; regeneration and possible fibrosis depending on severity.

Question 3

Which of the following is TRUE regarding the plasma membrane of a cell?

Accepted Answer

It contains integral proteins embedded within the bilayer that assist in transport and communication.

Question 4

A tissue sample is observed under electron microscopy and reveals cells with abundant rough endoplasmic reticulum and prominent nucleoli. Which function is most likely associated with these cells?

Accepted Answer

Protein synthesis and ribosome production.

Question 5

Which directional term correctly describes the relationship between the heart and the lungs?

Accepted Answer

The heart is medial to the lungs.

Question 6

A biopsy reveals a tissue with cells tightly packed, attached to a basement membrane, and avascular. Which tissue type is this, and what is its primary function?

Accepted Answer

Epithelial tissue; protection and absorption.

Question 7

Which of the following best explains why the skin is able to regulate body temperature?

Accepted Answer

The dermis contains eccrine sweat glands that release sweat, facilitating evaporative cooling.

Question 8

Which cell junction is most important for preventing leakage of substances between epithelial cells lining the intestines?

Accepted Answer

Tight junctions

Question 9

A patient has edema in the popliteal region. Where is the fluid accumulation located?

Accepted Answer

In the back of the knee

Question 10

Which of the following best describes the process of osmosis across the plasma membrane?

Accepted Answer

Movement of water from high to low solute concentration across a selectively permeable membrane.

Question 11

Which equation best represents the relationship between concentration gradient and rate of simple diffusion across a membrane?

Accepted Answer

$ J = -D \frac{dC}{dx} $

Question 12

During mitosis, which phase is characterized by chromosomes lining up at the cell's equator, and what is the significance of this arrangement?

Accepted Answer

Metaphase; allows equal separation of genetic material.

Question 13

A patient is diagnosed with melanoma. Which cell type is most likely affected, and why is this cancer considered dangerous?

Accepted Answer

Melanocytes; they can metastasize quickly and invade distant organs.

Question 14

Which connective tissue type is most likely to be found in tendons, and what is its primary structural feature?

Accepted Answer

Dense regular; parallel collagen fibers for tensile strength.

Question 15

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones directly into the blood; exocrine glands secrete substances through ducts.

Question 16

Which layer of the epidermis is responsible for the rapid regeneration of skin cells, and what cell type predominates there?

Accepted Answer

Stratum basale; keratinocytes.

Question 17

A patient with a genetic defect in collagen production will most likely have issues with which tissue type, and what is the expected consequence?

Accepted Answer

Connective tissue; reduced structural support and increased fragility.

Question 18

Which of the following best describes the function of microvilli on epithelial cells lining the small intestine?

Accepted Answer

They increase surface area for absorption.

Question 19

Which body plane divides the body into anterior and posterior sections?

Accepted Answer

Frontal (coronal)

Question 20

A cell is observed to undergo phagocytosis. Which equation best represents the energy requirement for this process?

Accepted Answer

$ \Delta G > 0 $ (non-spontaneous, ATP required)

Human Body Orientation, Cells, Tissues, and Integumentary System: ANP Study Guide

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