NUTRITION
THE HUMAN BODY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Voluntary muscles pump blood through the body.
|
|
|
Skeletal muscles keep a body’s joints working properly.
|
|
|
Cardiac muscles move bones and hold a body’s skeleton in place.
|
|
|
Smooth muscles help move food through the organs they surround.
|
Detailed explanation-1: -Food moves through the digestive system with a wave-like motion called peristalsis. Muscles in the walls of the hollow organs contract and relax to cause this movement, which pushes food through the esophagus into the stomach.
Detailed explanation-2: -The primary function of smooth muscle is contraction. Smooth muscle consists of two types: single-unit and multi-unit. Single-unit smooth muscle consists of multiple cells connected through connexins that can become stimulated in a synchronous pattern from only one synaptic input.
Detailed explanation-3: -Four functions of muscle contraction are movement, posture, joint stability, and heat production. Three types of muscle are skeletal, smooth, and cardiac.
Detailed explanation-4: -The 5 main functions of the muscular system are movement, support, protection, heat generation, and blood circulation.