Question

which characteristic describes both skeletal and cardiac muscle?
answers: a - e
a found in the heart
b moves bones
c multinucleated
d striations
e involuntary control

Explanation:

• Option A: Cardiac muscle is found in the heart, but skeletal muscle is not. So, this option is incorrect.
• Option B: Skeletal muscle moves bones, but cardiac muscle's function is to pump blood in the heart. So, this option is incorrect.
• Option C: Skeletal muscle is multinucleated, but cardiac muscle has one or two nuclei. So, this option is incorrect.
• Option D: Both skeletal and cardiac muscle have striations (a striped - like appearance due to the arrangement of contractile proteins). This is a correct characteristic for both.
• Option E: Cardiac muscle has involuntary control (it contracts without conscious thought), while skeletal muscle is under voluntary control (we can consciously decide to move it). So, this option is incorrect.

Answer:

D. Striations