Question 1

Which layer of the epidermis is responsible for the production of new keratinocytes, and what is its primary function?

Accepted Answer

Stratum basale; cell division and regeneration

Question 2

In the diagram of the long bone, which structure is responsible for bone growth in length during childhood and adolescence?

Accepted Answer

Epiphyseal plate

Question 3

Which cell type in the epidermis is primarily responsible for producing the pigment that protects against UV radiation?

Accepted Answer

Melanocyte

Question 4

What is the main function of the lamellar granules found in the stratum granulosum?

Accepted Answer

Release lipids for waterproofing

Question 5

Which of the following best describes the structural difference between the diaphysis and epiphysis of a long bone?

Accepted Answer

Diaphysis is the shaft with compact bone, epiphysis is the end with spongy bone

Question 6

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

Accepted Answer

Stratum lucidum

Question 7

What is the primary function of the periosteum in bone structure?

Accepted Answer

Provides blood supply and facilitates bone growth and repair

Question 8

Which cell in the epidermis is associated with touch sensation and is found in the deepest layer?

Accepted Answer

Merkel cell

Question 9

If a patient suffers a third-degree burn, which layers of the skin are destroyed?

Accepted Answer

Entire epidermis and entire dermis

Question 10

Which structure lines the medullary cavity of a long bone and is involved in bone remodeling?

Accepted Answer

Endosteum

Question 11

Which protein is most abundant in the stratum corneum and provides strength and waterproofing?

Accepted Answer

Keratin

Question 12

During bone fracture healing, which membrane is most involved in the formation of new bone tissue?

Accepted Answer

Periosteum

Question 13

Which layer of the epidermis contains cells undergoing mitosis?

Accepted Answer

Stratum basale

Question 14

What is the function of articular cartilage in a long bone?

Accepted Answer

Reduces friction and absorbs shock at joints

Question 15

Which cell type is most abundant in the epidermis and is responsible for producing the protein that forms the skin's protective barrier?

Accepted Answer

Keratinocyte

Question 16

Which region of a long bone contains red bone marrow in children and is the site of blood cell formation?

Accepted Answer

Epiphysis

Question 17

Which layer of the epidermis is characterized by flattened, dead cells filled with keratin?

Accepted Answer

Stratum corneum

Question 18

What is the primary function of the medullary cavity in a long bone?

Accepted Answer

Stores bone marrow

Question 19

Which cell type in the epidermis is involved in immune defense?

Accepted Answer

Langerhans cell

Question 20

If the periosteum is damaged, which process in bone is most likely to be impaired?

Accepted Answer

Bone growth and repair

BIOL 2113 Final Exam Review – Step-by-Step Study Guidance

Study Guide - Practice Questions