Question 1

Which of the following best describes the structure of a typical covering or lining membrane in the body?

Accepted Answer

An epithelial layer sitting on a basement membrane, underlain by connective tissue

Question 2

A patient suffers a deep wound to the skin. Which sequence best represents the stages of wound healing in the correct order?

Accepted Answer

Inflammation, organization, regeneration, fibrosis

Question 3

Which type of membrane lines body cavities that open to the exterior, such as the digestive tract?

Accepted Answer

Mucous membrane

Question 4

The cutaneous membrane is unique among body membranes because it:

Accepted Answer

Is a dry membrane with a high keratin content

Question 5

A patient with a severe heart attack loses a significant portion of cardiac muscle. What is the most likely outcome for the damaged tissue?

Accepted Answer

Replacement by scar tissue (fibrosis) with loss of function

Question 6

Which of the following statements about serous membranes is correct?

Accepted Answer

They consist of parietal and visceral layers with serous fluid between them

Question 7

During the inflammatory phase of wound healing, which of the following events occurs first?

Accepted Answer

Damaged cells release cytokines, attracting immune cells

Question 8

Which cell type in the epidermis is primarily responsible for producing the pigment that gives skin its color?

Accepted Answer

Melanocytes

Question 9

A wound fails to regenerate the original tissue and instead forms a scar. This process is known as:

Accepted Answer

Fibrosis

Question 10

Which of the following best explains why cartilage injuries heal poorly compared to skin injuries?

Accepted Answer

Cartilage is avascular, so nutrients must diffuse from surrounding tissue, limiting repair

Question 11

Which layer of the epidermis is responsible for the continuous production of new skin cells?

Accepted Answer

Stratum basale

Question 12

A patient presents with a wound that is healing slowly and forming a thick scar. Which factor is most likely contributing to this outcome?

Accepted Answer

The wound involves cardiac muscle, which has limited regenerative ability

Question 13

Which of the following equations best represents the relationship between the thickness of the skin ($$T$$), the number of epidermal layers ($$n$$), and the average thickness of each layer ($$t$$)?

Accepted Answer

$$T = n 	imes t$$

Question 14

Which of the following is a function of the hypodermis?

Accepted Answer

Stores fat and anchors the skin to underlying structures

Question 15

A patient with a severe burn loses the epidermis and part of the dermis. Which of the following is most likely to occur during healing?

Accepted Answer

Formation of granulation tissue followed by fibrosis (scar formation)

Question 16

Which of the following best describes the role of fibroblasts during wound healing?

Accepted Answer

They produce collagen fibers to strengthen the area

Question 17

Which of the following statements about the epidermis is correct?

Accepted Answer

It is made of stratified squamous epithelium

Question 18

A forensic scientist is analyzing fingerprints from a crime scene. Which statement about fingerprint formation is most accurate?

Accepted Answer

Fingerprints are formed by interactions between genetics and fetal environment

Question 19

Which of the following best explains why excessive sun exposure increases the risk of skin cancer?

Accepted Answer

It causes DNA damage in skin cells, leading to mutations

Question 20

A patient with a wound is at risk for infection. Which stage of wound healing is most critical for preventing infection?

Accepted Answer

Inflammation, because immune cells are recruited to the site

09/02 Lecture Body Membranes, Wound Healing, and Skin Structure: Study Notes for Anatomy & Physiology

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