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The Muscular System
Transcript of The Muscular System
By: Peyton, DeeDee, and Caleb
The use of muscles
Why do muscles pull and never push?
Musucles are like ropes, they can pull, but cannot push. Muscles work in pairs. If one pair of muscles contracts to pull something towards it, the other muscel relaxes. Each part of the skelectal system is connected to a muscle. In the system there are things called origins and insertion. The insertion is always pulled toward the origin.
The Muscular system is made up of over 600 muscles. They are each are responsible for the movements in your body. The muscular system is half of our body weight. Between 38% and 54% for men, and amid 28% and 39% for women. But it usally depends on the age
What does the muscular system do for the body.
What is Hypertrophy
The muscular system helps us move. If we dont have muscles it would be hard for us to move.With everything we do, we use our muscles. When we blink, run, walk, swallow,and jump we are using our muscles.
Muscle hypertrophy involes the skelectal muscle increasing in size. There are two types of hypertrophy: myofilbrillar and sarcoplasmic. Sarcoplasmic is about the increasing of the actual size of the skelectal muscle, and is focused less on stregneth. Myofilbrillar hypertrophy is focused more on stregneth, and less on the increase of our skelectal muscle.
What is Atrophy
Muscle atrophy is the decrease of mass in the muscle; it can be partial or complete wasting of muscle. When a muscle atrophies, it leads to mucle weakness. Muscle atrophy results from a co-morbidity of several different diseases: Cancer, AIDS, congestive heart failure, COPD, renal faliure, and severe burns.
Gluteals: A group of four muscles. Three of these muscles make up the buttocks. The fourth muscle is the smallest muscle.
Pectorals: The cheast region
Beceps Brachii: A muscle having two points of attachment at one end, in particular.
Gastronemius: The cheif muscle of the calf of the leg, which extends the knee and foot.
Quadriceps: A large muscle in the front of the thigh, which is divided into four distinct portions and acts to extend the leg.
Triceps Brachii: A large muscle on the back of the upper limb of many vertabrates
Latissimus Dorsi: either of a pair of large, roughly triangular muscles covering the lower part of the back, extending from the sacral, lumbar, and lower thoracic vertebrae to the armpits.
Sartorius: A long narrow muscle running across the front of each thigh from the hipbone to the inside of the leg, below the knee.
Deltoid: A triagular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm.
Trapezius: A pair of large triangular muscles, extending over the back of the neck and shoulders, and moving the head, and shoulder blade
Hamstrings: Any of the three muscles combining the back of the upper leg that serves to flex the knee joint, to move the leg, and extend the theigh.
Abdominals: The abdoninal muscles are a group of 6 muscles that extend across the ribs to the pelvis. They provide support for your trunk (core) and they also assist in the breathing process.