Question

which muscle type lines the inside of blood vessels and helps move food along the digestive tract?
cardiac muscle
voluntary muscle
smooth muscle
skeletal muscle
what does the muscular system help with in terms of circulation?
reducing blood pressure
pumping blood through the heart

Explanation:

1. Smooth muscle lines the inside of blood - vessels and is involved in peristalsis (moving food along the digestive tract). Cardiac muscle is in the heart, voluntary muscle is under conscious control and mainly attached to bones, and skeletal muscle is another name for voluntary muscle.
2. The muscular system helps in pumping blood through the heart. The heart muscle (cardiac muscle) contracts rhythmically to circulate blood. Reducing blood pressure is not the main function related to circulation by the muscular system, and creating blood cells is the function of the bone - marrow, not the muscular system.

Answer:

1. C. Smooth Muscle
2. B. Pumping blood through the heart