SCIENCE PERFORMANCE TASK#1
Directions:sort the following waht kind of muscle that is involved in the given action activity.Choose the answer inside the box
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SCIENCE PERFORMANCE TASK#1
Directions:sort the following waht kind of muscle that is involved in the given action activity.Choose the answer inside the box
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Verified answer
Muscular System
Skeletal
- writing
- stretching
- talking
- walking
Smooth
- digestion of food
- blinking of the eye
- breathing
- passing of urine
Cardiac
- beating of the heart
Explanation:
The muscular system is the body system responsible for the movements of the body. The muscle fibers contract and relax to facilitate movement. Movement can either be voluntary or involunatry. Secondary to movement, the muscular system also maintains body posture and position. It is also responsible for the generation of body heat to maintain body temperature.
They are classified into three types - skeletal, smooth, and cardiac muscles.
Skeletal muscles move bones and other structures. They are attached to bones. They contract and relax in response to the voluntary messages from the nervous system. Their muscle fibers have striations. Smooth muscles, on the other hand, are found in the walls of organs throughout the body. The contractions of smooth muscle are involuntary movements. As the name implies, they appear smooth and without striations. Lastly, the cardiac muscle contracts the heart to pump blood. The middle layer of the heart known as the myocardium is responsible for the heart's pumping action. Just like the skeletal muscle, they also have striations but they are shorter and thicker.
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