Multiple Choice
Which layer of the skin is primarily exfoliated during microdermabrasion?
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5. Integumentary System
Introduction to the Integumentary System
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Which muscles arise from the skull and often attach to the skin?
A
Smooth muscles
B
Cardiac muscles
C
Skeletal muscles
D
Facial muscles
Verified step by step guidance1
Understand the types of muscles in the human body: Smooth muscles are involuntary and found in walls of organs like the stomach and intestines. Cardiac muscles are specialized involuntary muscles found only in the heart. Skeletal muscles are voluntary muscles attached to bones or other structures, enabling movement.
Recognize that facial muscles are a subset of skeletal muscles. Unlike most skeletal muscles, facial muscles often attach to the skin rather than bones, allowing for facial expressions.
Recall that facial muscles originate from the skull. Their unique attachment to the skin enables movements such as smiling, frowning, and other expressions.
Differentiate facial muscles from other skeletal muscles based on their function and attachment points. While most skeletal muscles attach to bones to facilitate movement, facial muscles are specialized for expression.
Conclude that the correct answer is facial muscles, as they arise from the skull and attach to the skin, enabling facial expressions.
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