Question 1

Which of the following best describes the function of the stratum basale in the epidermis?

Accepted Answer

It is a single layer of cells responsible for producing new keratinocytes.

Question 2

A patient receives a tattoo. Why does the tattoo remain visible for years, even though the epidermis is constantly shedding cells?

Accepted Answer

Tattoo ink is injected into the dermis, which is not replaced as rapidly as the epidermis.

Question 3

Which of the following structures is responsible for detecting deep pressure in the skin?

Accepted Answer

Lamellated (Pacinian) corpuscle

Question 4

Which layer of the epidermis is only found in thick skin, such as the palms of the hands and soles of the feet?

Accepted Answer

Stratum lucidum

Question 5

A burn patient has lost the entire epidermis and part of the dermis. Which of the following best describes the type of burn?

Accepted Answer

Second-degree burn

Question 6

Which of the following best explains why the stratum corneum is important for the body?

Accepted Answer

It acts as a barrier to water loss and protects underlying tissues.

Question 7

Which of the following is a characteristic unique to apocrine sweat glands?

Accepted Answer

They are associated with hair follicles and become active at puberty.

Question 8

A patient presents with a loss of tactile sensation in the fingertips. Which structure is most likely damaged?

Accepted Answer

Tactile (Meissner's) corpuscle

Question 9

Which of the following best describes the composition of the reticular layer of the dermis?

Accepted Answer

Dense irregular connective tissue

Question 10

Which of the following statements about sebaceous glands is correct?

Accepted Answer

They are associated with hair follicles and secrete sebum to lubricate the skin.

Question 11

Which of the following is a function of the skeletal system?

Accepted Answer

Storage of calcium and phosphate ions

Question 12

Which type of cartilage is found at the ends of long bones and provides a smooth surface for joint movement?

Accepted Answer

Hyaline cartilage

Question 13

A patient has a fracture in the diaphysis of the femur. Which of the following best describes the diaphysis?

Accepted Answer

The shaft of a long bone containing the medullary cavity

Question 14

Which of the following best describes the function of osteoclasts in bone tissue?

Accepted Answer

They break down bone matrix, releasing calcium into the blood.

Question 15

Which of the following is a characteristic unique to fibrocartilage?

Accepted Answer

Contains abundant collagen fibers for strength and resistance to compression

Question 16

A child is diagnosed with a disorder affecting the epiphyseal plate. Which process is most likely to be impaired?

Accepted Answer

Longitudinal bone growth

Question 17

Which of the following best describes the composition of the inorganic matrix of bone?

Accepted Answer

Hydroxyapatite crystals (calcium phosphate)

Question 18

A patient has a deficiency in vitamin D. Which of the following processes will be most directly affected?

Accepted Answer

Calcium absorption from the digestive tract

Question 19

Which of the following equations correctly represents the relationship between bone mass, bone formation, and bone resorption?

Accepted Answer

$$	ext{Bone Mass} = 	ext{Bone Formation} - 	ext{Bone Resorption}$$

Question 20

A patient has a mutation that prevents the formation of dense irregular connective tissue. Which skin structure would be most directly affected?

Accepted Answer

Reticular layer of the dermis

Skin and Skeletal System: Structure, Function, and Histology

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