Question

Which is true concerning muscle tissue?

A) Non-contractile and supportive
B) Highly vascular with abundant nerve endings
C) Involuntary and under conscious control
D) Composed of neurons and glial cells

Answer 1

Muscle tissue is classified into three types: skeletal, cardiac, and smooth. Skeletal muscle is voluntary and under conscious control, cardiac muscle is involuntary and found only in the heart, and smooth muscle is also involuntary and lacks striations.

Step-by-step explanation:

Muscle tissue is classified into three types: skeletal, cardiac, and smooth. Skeletal muscle is voluntary and under conscious control. It is characterized by long, unbranched cylinders with striations and multiple nuclei. Cardiac muscle is involuntary and found only in the heart. It has striated cells with a single nucleus and is interconnected by intercalated disks. Smooth muscle is also involuntary and lacks striations. It has spindle-shaped fibers with a single nucleus.