Which is the last step in skin repair?
neutrophils and macrophages are summoned to the area
blood fills the wound and a clot is formed
granulation tissue is converted into connective tissue
fibroblasts move in from surrounding connective tissue
The Correct Answer is C
A. neutrophils and macrophages are summoned to the area
This is an early step in the inflammatory phase to remove pathogens and debris.
B. blood fills the wound and a clot is formed
This occurs immediately after injury to stop bleeding and initiate repair.
C. granulation tissue is converted into connective tissue
This is part of the remodeling phase-the final stage-where the new tissue is matured and replaced with stronger connective tissue.
D. fibroblasts move in from surrounding connective tissue
This occurs during the proliferative phase, earlier than the final remodeling phase.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. actin fibers: Actin is a cytoskeletal protein found within cells, not in the extracellular matrix. It supports cell shape and movement but is not part of the matrix fiber system.
B. collagen fibers: These are strong protein fibers found in the extracellular matrix and provide tensile strength.
C. reticular fibers: These are thin, branching fibers composed of collagen and form supportive networks in soft tissues like the spleen and lymph nodes.
D. elastic fibers: Composed of elastin, these fibers provide elasticity to tissues such as skin and blood vessels.
Correct Answer is A
Explanation
A. terminal; vellus
Terminal hairs are thick and pigmented. During puberty, hairs typically change from vellus to terminal, not the reverse.
B. lanugo; vellus
Lanugo is the fine hair present on fetuses, not typical of pre-pubertal facial hair.
C. vellus; lanugo
This is also in Lanugo is not a stage in puberty; it is lost after birth.
D. lanugo; terminal
While terminal hair is correct, lanugo is irrelevant in this pubertal context.
E. vellus; terminal
During puberty, vellus hair (fine and lightly pigmented) on the face is replaced by terminal hair (thicker, darker, and coarser) under the influence of androgens.
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