Which is the only type of muscle tissue that is voluntary?
Connective
Cardiac
Skeletal
Smooth
The Correct Answer is C
A. Connective: Connective tissue provides support and structure (e.g., tendons, cartilage) but is not muscle tissue.
B. Cardiac: Cardiac muscle, found in the heart, is involuntary and contracts rhythmically without conscious control.
C. Skeletal: Skeletal muscle is the only voluntary muscle tissue, meaning it is consciously controlled. It allows movement of the body by attaching to bones via tendons.
D. Smooth: Smooth muscle, found in internal organs (e.g., intestines, blood vessels), is involuntary and controlled by the autonomic nervous system.
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Related Questions
Correct Answer is D
Explanation
A. Classified as skeletal, cardiac, and smooth: These classifications apply to muscle tissue, not adipose tissue.
B. Described as striated and voluntary: Striated and voluntary characteristics describe skeletal muscle, not adipose tissue.
C. Classified as endocrine and exocrine: Glands are classified as endocrine (hormone-secreting) or exocrine (secreting substances through ducts), but adipose tissue is connective tissue.
D. A type of connective tissue that stores fat: Adipose tissue is a specialized connective tissue that stores fat, insulates the body, and provides cushioning.
Correct Answer is B
Explanation
A. Hypernatremia: Hypernatremia refers to high sodium levels, which are not directly related to impaired glucose metabolism.
B. Hyperglycemia: Aging reduces insulin sensitivity and pancreatic function, leading to higher blood glucose levels, or hyperglycemia, which is a risk factor for diabetes mellitus.
C. Hypoglycemia: Aging-related insulin resistance typically results in elevated glucose levels (hyperglycemia), not low blood sugar (hypoglycemia).
D. Hyperkalemia: Hyperkalemia is an excess of potassium in the blood, which is not directly linked to impaired glucose metabolism.
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