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Muscular System 2KX

These question is about the muscular system and what goes on inside of it.

QuestionAnswer
List 3 types of muscle tissue Skeletal, smooth, and cardiac
Which muscle are usually attached to bones, have a nuclei, responsible for voluntary movements and are striated Skeletal muscle
Which muscle are usually not under voluntary control, are spindle-shaped, have one nucleus, are not striated and found in many internal organs and blood vessels Smooth muscle
Which muscle is found in the heart, is striated, may have one or two nuclei and are connected to each other by gap junctions Cardiac muscle
The fiber in the skeletal muscle is composed of smaller structures called Myofibrills
Each myofibrill has a smaller structure called Filaments
The thick filamnts contain a protein called Myosin
The thin filaments contain a protein called Actin
How much percent of body mass is made up of human muscle 40
Filaments are arranged along the muscle fiber in units called Sarcomeres
How are sarcomeres seperated Z lines
What is neuromuscular junctions Point of contact between motor neurons
What produce an impulse in the cell membrane of the muscle fiber Acetylcholine
Skeletal muscle are jointed to the bones by Tendons
What is the function of tendons Pull on the bones so they can work like levers
Which exercise help the body's system to become more efficient Aerobic Exercises
What does resistance exercise do to your body Increase muscle size and strength
Why is regular exercise important To maintain muscular strength ans flexibility
Where does acetylcholine muscle diffuse Across the synapse,producing an impulse in the cell membrane of the muscle fiber
What is the function of the muscular system Movement
Created by: JahMoiah
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