The muscles responsible for goosebumps are the ________ and would be an example of which type of muscle?
arrector pili muscles; skeletal
apocrine pili muscles; smooth
arrector pili muscles; cardiac
arrector pili muscles; smooth
The Correct Answer is D
A. arrector pili muscles; skeletal
Arrector pili muscles are not voluntary, and skeletal muscle is under voluntary control.
B. apocrine pili muscles; smooth
“Apocrine pili” is not a valid term. Apocrine glands are sweat glands, not muscles.
C. arrector pili muscles; cardiac
Cardiac muscle is found only in the heart and is not associated with skin or hair.
D. arrector pili muscles; smooth
These small involuntary muscles are attached to hair follicles and made of smooth muscle, which contracts to produce goosebumps (piloerection) in response to cold or emotional stimuli.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is C
Explanation
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.
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