Saturday, February 2, 2008
What Happened To Cody From Corbin Fisher
LOCOMOTOR - Bones - Joints - Muscles
Muscles are the organs that are responsible for the mobility and stability of the body.
main characteristic properties:
1) contraction. Able to shorten the fibers.
2) Elasticity. To regain her form after a contraction. 
Because of its role, present a very complex system of innervation and vascularization.
A) The active muscle shortens approaching its two ends. This is known as isotonic contraction. An example is the biceps muscle contraction ("rabbit" of the arm) when lifting a heavy object.
B) The muscle is active, but its length remains constant. This is called isometric contraction. The action of the biceps brachii when bearing a heavy load with arms is an example.
C) The muscle is active, but their ends away, stretching the muscle. This is called eccentric contraction. An example of this is the action of muscles arm at the time of throwing a ball.
By function, the muscles are classified as:
This fiber muscle satellite cells has also included within the basement membrane of myoblasts derived and are they capable of fusing with muscle fibers damaged resulting in a regeneration process (see Figure 5).
Muscles are the organs that are responsible for the mobility and stability of the body.
main characteristic properties:
1) contraction. Able to shorten the fibers.
2) Elasticity. To regain her form after a contraction.
3) excitability. Respond to stimuli.
C) striated muscle. You can make fast or slow contractions and has as a distinctive feature compared to the previous two to reach fatigue. Their movement will depend explicitly.
comes into operation three phenomena can occur: In striated muscles, which are before us, the main energy source for muscle contraction is ATP (adenosine triphosphate). 
muscle fibers that specialize in the activity of high power for short periods of time are called white or type I fibers and are using more energy pathway of ATP through the mechanism of glycolysis (glucose molecules taking glycogen stored in muscle). By their mechanical properties are called also fast-twitch, fatigable or (FF). muscle fibers must remain active for long periods of time are called red or type II fibers. Are the first to be activated in muscle contraction when required low power. By their mechanical properties are also called slow-twitch fibers to fatigue resistententes (SR). Other muscle fibers whose mechanical properties are among the previous two (FF and SR). Generate a relatively rapid contraction, but also are relatively resistant to fatigue and are called fatigue-resistant fibers or (FR). When a muscle
muscle fibers that specialize in the activity of high power for short periods of time are called white or type I fibers and are using more energy pathway of ATP through the mechanism of glycolysis (glucose molecules taking glycogen stored in muscle). By their mechanical properties are called also fast-twitch, fatigable or (FF). muscle fibers must remain active for long periods of time are called red or type II fibers. Are the first to be activated in muscle contraction when required low power. By their mechanical properties are also called slow-twitch fibers to fatigue resistententes (SR). Other muscle fibers whose mechanical properties are among the previous two (FF and SR). Generate a relatively rapid contraction, but also are relatively resistant to fatigue and are called fatigue-resistant fibers or (FR). When a muscle A) The active muscle shortens approaching its two ends. This is known as isotonic contraction. An example is the biceps muscle contraction ("rabbit" of the arm) when lifting a heavy object.
B) The muscle is active, but its length remains constant. This is called isometric contraction. The action of the biceps brachii when bearing a heavy load with arms is an example.
C) The muscle is active, but their ends away, stretching the muscle. This is called eccentric contraction. An example of this is the action of muscles arm at the time of throwing a ball.
By function, the muscles are classified as:
1) Abductors: Those who are responsible for the limbs away from the central axis of the body. Example: Raise one arm to the side. 2) Adducts: Those who are in charge of the extremities toward the central axis of the body. Example: Take one arm into the body, like putting the shoulder to the umbilicus. 3) pronator: They are spinning the extremities inward. Example: Rotate the hand inward.
5) flexors: Devices that allow flexion extremities. Example: The bending of the leg on the thigh or arm on the forearm. 
6) Extenders: These are those that allow the extension of the limbs. Example: The length of the leg on the thigh or forearm on the arm.
6) Extenders: These are those that allow the extension of the limbs. Example: The length of the leg on the thigh or forearm on the arm. Muscles have receptors sensitive, who report pain and proprioceptive receptors, reporting on the degree of tension that develops the muscle and its contraction, which gives an idea of \u200b\u200bits position in space. There muscles that oppose the action of gravity and are called postural, are responsible for maintaining the upright position, are constantly required to maintain this position. Are resistant to fatigue, these are located in the back of the leg, preventing flexion of the ankle, the anterior thigh preventing knee flexion. Also found on the back of the trunk (back) to avoid its bending. Muscles consist of long cells with multiple nuclei to which they are called muscle fibers. Each end of these fibers are embedded in the tendons and these, in turn, bone, crossing the joints (see Figure 2).
All muscle is enveloped by a layer of tissue called epimisio. This penetrates the muscle tissue between muscle bundles where it is called and in the perimysium and muscle bundle is called the endomysium (see Figure 3). Each of these muscle bundles as in Figure 3 has thousands of muscle fibers that constitute it (see Figure 4).
muscle fiber is the fundamental unit of muscle, is one of the few multinucleated cells in the body. Each of these muscle fibers are surrounded by a thin layer of tissue called basement membrane. It is believed that this membrane contains molecules important for the development and differentiation of the neuromuscular apparatus. This fiber muscle satellite cells has also included within the basement membrane of myoblasts derived and are they capable of fusing with muscle fibers damaged resulting in a regeneration process (see Figure 5).
These muscle fibers contain thousands of myofibrils where the unit c
ontráctil muscle and neuromuscular synapse where they carry out electrochemical processes for muscle contraction is given (see Figure 6).
The contractile apparatus of each muscle fiber is subdivided into myofibrils, which are bundles of thick and thin filaments that lie longitudinally throughout the muscle.
These myo-filaments are those composed by the proteins actin and myosin chains and separated by bands Z. The portion of these myo-filaments between 2 bands z is called a sarcomere and muscle is the contractile unit.
SOURCES: These are listed in the 2 nd part.
ontráctil muscle and neuromuscular synapse where they carry out electrochemical processes for muscle contraction is given (see Figure 6).
The contractile apparatus of each muscle fiber is subdivided into myofibrils, which are bundles of thick and thin filaments that lie longitudinally throughout the muscle.
These myo-filaments are those composed by the proteins actin and myosin chains and separated by bands Z. The portion of these myo-filaments between 2 bands z is called a sarcomere and muscle is the contractile unit.
SOURCES: These are listed in the 2 nd part. Friday, February 1, 2008
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