Question

an example of a skeletal muscle working occurs when a person ______. a. perspires heavily b. digests food c. takes a breath d. stands up please select the best answer from the choices provided. a b c d

Explanation:

• Option A: Perspiring heavily involves sweat glands (part of the integumentary system) and is not related to skeletal muscle work.
• Option B: Digesting food is a function of smooth muscles in the digestive tract, not skeletal muscles.
• Option C: Breathing involves both skeletal (intercostal muscles, diaphragm) and smooth muscles, but the primary muscle for voluntary breathing adjustments is skeletal, yet standing up is a more direct skeletal muscle action.
• Option D: Standing up requires the contraction of skeletal muscles (like leg and back muscles) to move the skeleton, which is a classic example of skeletal muscle function.

Answer:

D. stands up