Question

Skeletal muscles show which of the following characteristics.

(i) richly vascular (ii) striped (iii) voluntary (iv) spindle shaped.

• A. (i), (iii)
• B. (ii), (iii)
• C. (i), (iv)
• D. (i), (ii) and (iii)

Answer 1

The correct option is D

(i), (ii) and (iii)

The correct option is D:
Explanation of the correct option :

1. Striped, voluntary, and richly-vascularized are characteristics of skeletal muscle tissue cells.
2. Skeletal muscle tissue is the only muscle tissue that is directly controlled by the cerebral cortex of the brain, giving it the name voluntary muscle.

Explanation of the incorrect option:
Option A:

1. The properties defining skeletal muscle tissue cells are not only richly vascular and voluntary.

Option B:

1. Striped and voluntary aren't the only characteristics that distinguish skeletal muscle tissue cells.

Option C:

1. The properties defining skeletal muscle tissue cells are not only richly vascular and it is not spindle shaped.

Final answer: The characteristics of skeletal muscles are richly vascular, striped and voluntary.