Question 1

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

Accepted Answer

Stratum lucidum

Question 2

A patient presents with a bluish discoloration of the skin after a severe asthma attack. Which term best describes this condition?

Accepted Answer

Cyanosis

Question 3

Which enzyme is responsible for joining Okazaki fragments during DNA replication?

Accepted Answer

DNA ligase

Question 4

A burn patient is at greatest risk for which immediate complication, requiring urgent IV treatment?

Accepted Answer

Dehydration due to fluid loss

Question 5

Which hormone is released in response to hypercalcemia and acts to lower blood calcium levels by stimulating osteoblast activity?

Accepted Answer

Calcitonin

Question 6

Which of the following best describes the structural difference between compact and spongy bone?

Accepted Answer

Compact bone contains osteons; spongy bone contains trabeculae.

Question 7

A child is diagnosed with rickets, a disease characterized by soft, weak bones. Which process is most directly impaired in this condition?

Accepted Answer

Endochondral ossification

Question 8

Which connective tissue fiber is most abundant and provides tensile strength to tissues?

Accepted Answer

Collagen fibers

Question 9

Which of the following is a ductless gland that releases hormones directly into the bloodstream?

Accepted Answer

Endocrine gland

Question 10

A synovial joint is characterized by which of the following features?

Accepted Answer

Presence of a joint cavity filled with synovial fluid

Question 11

Which cell type is most abundant in the epidermis and is responsible for producing the protein that gives skin its strength?

Accepted Answer

Keratinocytes

Question 12

Which of the following best describes the directionality of DNA synthesis during replication?

Accepted Answer

DNA is synthesized in the $$5' \rightarrow 3'$$ direction.

Question 13

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

Accepted Answer

Production of hormones

Question 14

A patient with osteoporosis is likely to have decreased bone density due to reduced activity of which hormone?

Accepted Answer

Estrogen

Question 15

Which of the following best describes the movement of water in a hypertonic solution?

Accepted Answer

Water moves from inside the cell to outside, causing the cell to shrink.

Question 16

Which bone marking is a hole in a bone that allows blood vessels and nerves to pass through?

Accepted Answer

Foramen

Question 17

Which of the following best describes the ABCD rule for assessing skin cancer?

Accepted Answer

A: Asymmetry, B: Border, C: Color, D: Diameter

Question 18

Which of the following is the most common type of skin cancer, originating from cells in the stratum basale?

Accepted Answer

Basal cell carcinoma

Question 19

Which of the following best describes the function of goblet cells in pseudostratified ciliated columnar epithelium?

Accepted Answer

Produce mucus to prevent friction

Question 20

A fracture that appears as a thin break in the bone, often difficult to detect, is best described as which type?

Accepted Answer

Hairline fracture

Comprehensive Study Guide: DNA Replication, Histology, Integumentary System, Articulation, Skeletal System, and Related Terms

Study Guide - Practice Questions