Did you know that muscle weighs more than fat? The muscular system is composed of over 600 muscles. Differences between each muscle are found by location, function, structure, and the way each muscle contracts. Muscles are made of bundles of long thin fibers. Muscles come in a variety of shapes and forms. They are found under the skin, over bones, so you can only see the outline.
Major Organs:
- skeletal muscles and smooth muscles throughout the body
3 Types of Muscles:
Cardiac
- looks straited/striped
- moves involuntarily
- allows heart to beat/pump
Smooth
- looks smooth
- moves involuntarily
- make up internal organs
- controls movement of inner body (Digestive System, Blood Vessels, etc.)
Skeletal
- looks straited/striped
- moves voluntarily
- attached to bones to help movement
- contain multiple nuclei because of large size
How They Work:
- work in pairs
- one muscle shortens/contracts
- at same time one lengthens
- this pulls bone up causing movement
The 5 Main Functions of Muscles:
#1They Give Our body shape
- muscles attach to the skeletal structure and add density to our figures
- between 40%-45% of our body is made up of muscles
#2 The Help Us Move
- when muscles contract they cause us to move
#3 Give Posture When Standing/Sitting
#4 They Produce Majority of Our Body Heat - fuel turns to heat energy instead of movement
#5 They Protect Us From Shock
Major Muscles:
- Biceps-> found in front of arm
- Triceps-> found in back of arm
- Hamstrings-> found in back of thigh
- Quadriceps-> found in front of thigh
- Forearm-> found between the wrist and elbow
- Calves-> found in back of legs
- Gluteus Maximus-> buttocks area
- Abdominals-> muscles over stomach (Abs)
Tendons and Ligaments:
Tendons
- strong cords connecting muscle to bone
- when the muscles contract, they pull on the tendons, which pull on the muscles, and that causes movement
- important job = protect from strain during movement
Ligaments
- connect bone to bone
- they connect at the ends of muscles and keep them from slipping and sliding, and force them to bend
- stabilize joints (allow joints to move in specific direction, need more than one group of ligaments to keep joints aligned)
Sprains and Strains:
Strains
- muscle contracts, shortens, and pulls on the tendon
- are muscles that has been stretched too far
- it's common for people to strain muscles in their back, neck, or legs
- a strain is a pain inside the muscle
Sprains
- ligament is stretched/torn causing sprain
- sprains will probably start to hurt right away
Muscular Diseases:
Fibromyalgia
- a chronic pain syndrome, or chronic musculoskeletal disorder (as referred to by doctors and scientists)
- a condition where pain occurs in muscles and surrounding structures without any obvious tissue damage
- it can be treated with aerobic fitness training
Tendonitis
- an inflammation of a tendon
- it is a type of overuse injury that is more common in younger people who play sports often
- can be treated with deep transverse friction tissue massages along with rest, restricted activity, pain medication prescribed by your doctor
Chronic Fatigue Syndrome (CFS)
- a condition which can affect people of all ages
- an illness which causes long-lasting physical and mental fatigue
- exercise therapy is a promising treatment for chronic fatigue syndrome
Muscular System
Did you know that muscle weighs more than fat? The muscular system is composed of over 600 muscles. Differences between each muscle are found by location, function, structure, and the way each muscle contracts. Muscles are made of bundles of long thin fibers. Muscles come in a variety of shapes and forms. They are found under the skin, over bones, so you can only see the outline.
Major Organs:
- skeletal muscles and smooth muscles throughout the body
3 Types of Muscles:
Cardiac
- looks straited/striped
- moves involuntarily
- allows heart to beat/pump
Smooth
- looks smooth
- moves involuntarily
- make up internal organs
- controls movement of inner body (Digestive System, Blood Vessels, etc.)
Skeletal
- looks straited/striped
- moves voluntarily
- attached to bones to help movement
- contain multiple nuclei because of large size
How They Work:
- work in pairs
- one muscle shortens/contracts
- at same time one lengthens
- this pulls bone up causing movement
The 5 Main Functions of Muscles:
#1 They Give Our body shape
- muscles attach to the skeletal structure and add density to our figures
- between 40%-45% of our body is made up of muscles
#2 The Help Us Move
- when muscles contract they cause us to move
#3 Give Posture When Standing/Sitting
#4 They Produce Majority of Our Body Heat - fuel turns to heat energy instead of movement
#5 They Protect Us From Shock
Major Muscles:
- Biceps-> found in front of arm
- Triceps-> found in back of arm
- Hamstrings-> found in back of thigh
- Quadriceps-> found in front of thigh
- Forearm-> found between the wrist and elbow
- Calves-> found in back of legs
- Gluteus Maximus-> buttocks area
- Abdominals-> muscles over stomach (Abs)
Tendons and Ligaments:
Tendons
- strong cords connecting muscle to bone
- when the muscles contract, they pull on the tendons, which pull on the muscles, and that causes movement
- important job = protect from strain during movement
Ligaments
- connect bone to bone
- they connect at the ends of muscles and keep them from slipping and sliding, and force them to bend
- stabilize joints (allow joints to move in specific direction, need more than one group of ligaments to keep joints aligned)
Sprains and Strains:
Strains
- muscle contracts, shortens, and pulls on the tendon
- are muscles that has been stretched too far
- it's common for people to strain muscles in their back, neck, or legs
- a strain is a pain inside the muscle
Sprains
- ligament is stretched/torn causing sprain
- sprains will probably start to hurt right away
Muscular Diseases:
Fibromyalgia
- a chronic pain syndrome, or chronic musculoskeletal disorder (as referred to by doctors and scientists)
- a condition where pain occurs in muscles and surrounding structures without any obvious tissue damage
- it can be treated with aerobic fitness training
Tendonitis
- an inflammation of a tendon
- it is a type of overuse injury that is more common in younger people who play sports often
- can be treated with deep transverse friction tissue massages along with rest, restricted activity, pain medication prescribed by your doctor
Chronic Fatigue Syndrome (CFS)
- a condition which can affect people of all ages
- an illness which causes long-lasting physical and mental fatigue
- exercise therapy is a promising treatment for chronic fatigue syndrome