The muscular system
SUMMARY
The muscular system permits movement of the body, maintains posture, and circulates blood throughout the body. Composing beetwen 30% and 40% of the total body weight, it's made up of 3 main muscle types . Its connection to the Neurosystem allows the control and consequent movement of the muscles, which is divided into 3 types. Movement is respinsable for the production of heat.
property of muscles
Excitability: an ability to respond to stimuli
Contractibility: an ability to contract.
Extensibility: an ability to be stretched without tearing
Elasticity: an ability to return to its normal shape
Adaptability: an ability to adapt during growth to fit the changing skeletal size, to hypertrophy as a result of overload to more easily handle a task,
CARDIAC MUSCLE
Only found in the heart.Striated but involuntary, allows the heart to pump blood
SKELETAL MUSCLE
Connected to the bones via tendons allowing the movement.
SMOOTH MUSCLE
Lines up the blood vessels and certain organs like intestine.involuntary
FIBERS
All muscle types are made by fibers blunded togheter. These are connected to the Neurosystem and generates motion. Divede into 2 main types:
VS
SLOW TWITCH
FAST TWITCH
USES OXIGEN CONTINOUS ENERGY HIGH ENDURANCE REACTS SLOWLY
USES ANAEROBIC METABOLISM SHORT BURST OF ENERGY TYRE UP QUICKLY REACTS QUICKLY
ISOMETRIC CONTRACTION
CONCENTRICCONTACTION
ECCENTRIC CONTRACTION
Isometric muscle contractions occur when there is no change in muscle length during contraction, where the muscles stabilize the body without visible movement.
Is characterized by muscle shortening under load. For example, when you perform a Bicep Curl during the flexion phase, your bicep is contracted and shortened under load.
Is the opposite of concentric muscle contraction, meaning the muscle is lengthened under load.
supportive structures
TENDONS
Connect muscle to bone
FASCIA
Connect muscle to muscle
'THANKS FOR WATCHING
Human Body Presentation
Jacopo Nicolardi
Created on November 25, 2024
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Transcript
The muscular system
SUMMARY
The muscular system permits movement of the body, maintains posture, and circulates blood throughout the body. Composing beetwen 30% and 40% of the total body weight, it's made up of 3 main muscle types . Its connection to the Neurosystem allows the control and consequent movement of the muscles, which is divided into 3 types. Movement is respinsable for the production of heat.
property of muscles
Excitability: an ability to respond to stimuli
Contractibility: an ability to contract.
Extensibility: an ability to be stretched without tearing
Elasticity: an ability to return to its normal shape
Adaptability: an ability to adapt during growth to fit the changing skeletal size, to hypertrophy as a result of overload to more easily handle a task,
CARDIAC MUSCLE
Only found in the heart.Striated but involuntary, allows the heart to pump blood
SKELETAL MUSCLE
Connected to the bones via tendons allowing the movement.
SMOOTH MUSCLE
Lines up the blood vessels and certain organs like intestine.involuntary
FIBERS
All muscle types are made by fibers blunded togheter. These are connected to the Neurosystem and generates motion. Divede into 2 main types:
VS
SLOW TWITCH
FAST TWITCH
USES OXIGEN CONTINOUS ENERGY HIGH ENDURANCE REACTS SLOWLY
USES ANAEROBIC METABOLISM SHORT BURST OF ENERGY TYRE UP QUICKLY REACTS QUICKLY
ISOMETRIC CONTRACTION
CONCENTRICCONTACTION
ECCENTRIC CONTRACTION
Isometric muscle contractions occur when there is no change in muscle length during contraction, where the muscles stabilize the body without visible movement.
Is characterized by muscle shortening under load. For example, when you perform a Bicep Curl during the flexion phase, your bicep is contracted and shortened under load.
Is the opposite of concentric muscle contraction, meaning the muscle is lengthened under load.
supportive structures
TENDONS
Connect muscle to bone
FASCIA
Connect muscle to muscle
'THANKS FOR WATCHING