Question

The _______ does not have a fibrous structure.

A. cardiac muscle
B. calf muscle
C. skeletal muscle
D. smooth muscle

Answer 1

Explanation:
The cardiac skeleton, sometimes called the fibrous skeleton of the heart, is the structure of dense connective tissue in the heart that separates the atria from the ventricles. The cardiac skeleton establishes electrically impermeable boundaries to autonomic influence within the heart. The anchored Collagen framework of four valves in a plane has the unique property of being electrically inert. In normal anatomy the AV node is the only electrical conduit from the atria to the ventricles through the cardiac skeleton.

Answer 2

thank you

Answer 3

That is incorrect cardiac muscle has a fibrous structure

Answer 4

since calf muscle and skeletal muscle are the same thing and cardiac muscle has a fibrous sturcture the only answer left is smooth muscle.