Question 1

Which layer of the epidermis is primarily responsible for producing keratin and is the thickest in thick skin, such as the palms and soles?

Accepted Answer

Stratum basale

Question 2

A patient presents with a burn that is red, painful, and blistered. The burn covers the entire epidermis and part of the dermis. What type of burn is this, and what is the rule of nines used for in this context?

Accepted Answer

Second-degree burn; estimating the percentage of body surface area affected

Question 3

Which cell type in the epidermis is responsible for producing the pigment melanin, and what is the primary function of melanin?

Accepted Answer

Melanocyte; protects DNA from UV radiation

Question 4

A patient has a yellowish skin color and the whites of their eyes are also yellow. What is this condition called, and what is the underlying cause?

Accepted Answer

Jaundice; buildup of bilirubin due to liver dysfunction

Question 5

Which structure in the skin is responsible for detecting deep pressure and vibration?

Accepted Answer

Pacinian corpuscle

Question 6

Sebaceous glands secrete an oily substance into hair follicles. What is the main function of this secretion?

Accepted Answer

Prevents water loss and inhibits bacterial growth

Question 7

Which type of sweat gland is most numerous and plays a major role in thermoregulation?

Accepted Answer

Eccrine gland

Question 8

A patient presents with a mole that has irregular borders, multiple colors, and is larger than 6 mm. According to the ABCDE rule for skin cancer, which letter does 'B' stand for, and what does it indicate?

Accepted Answer

Border; irregularity of the edges

Question 9

Which layer of the skin contains blood vessels, nerves, and most of the accessory structures such as hair follicles and sweat glands?

Accepted Answer

Dermis

Question 10

What is the main function of the arrector pili muscle attached to hair follicles?

Accepted Answer

Contracts to raise the hair, producing 'goosebumps'

Question 11

Which vitamin is synthesized in the skin upon exposure to sunlight, and what is its primary function in the body?

Accepted Answer

Vitamin D; calcium absorption

Question 12

A patient has a wound that is dry, cracked, and covered with silvery scales. What is the most likely diagnosis?

Accepted Answer

Psoriasis

Question 13

Which type of connective tissue is found in the hypodermis and functions as insulation and energy storage?

Accepted Answer

Adipose tissue

Question 14

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Production of red blood cells

Question 15

Which type of cartilage is found in the intervertebral discs and provides resistance to compression?

Accepted Answer

Fibrocartilage

Question 16

What is the primary mineral stored in bones, and what is its main physiological role?

Accepted Answer

Calcium; muscle contraction and nerve signaling

Question 17

Which bone cell is responsible for breaking down bone matrix during bone remodeling?

Accepted Answer

Osteoclast

Question 18

A patient has a fracture in the shaft of the femur. Which part of the bone is affected, and what is the main tissue type found there?

Accepted Answer

Diaphysis; compact bone

Question 19

Which hormone is released in response to low blood calcium levels and stimulates osteoclast activity?

Accepted Answer

Parathyroid hormone

Question 20

Which structure provides a framework for muscle attachment and protects vital organs in the thorax?

Accepted Answer

Rib cage

Study Guide: Integumentary System and Skeletal Tissues

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