Categorize the following: intestinal muscles, heart muscles, hand muscles, and neck muscles.
Answer
A
Intestinal and neck muscles are skeletal muscles; heart and hand muscles are smooth muscles.
B
Heart and neck muscles are long and slender; hand and intestinal muscles are spindle shaped.
C
Intestinal and heart muscles are involuntary muscles; hand and neck muscles are voluntary muscles.
D
Heart and intestinal muscles allow for big movements; hand and neck muscles allow for smooth movements.
Explanation
Intestinal muscles move food through the digestive tract without conscious control, and heart muscle contracts automatically to pump blood; both are involuntary. Hand and neck muscles are skeletal muscles that you can generally control consciously, so they are voluntary. Therefore, choice C correctly categorizes the muscles.
AI-written and checked against the verified answer.