Muscular System Flashcards
What is the shoulder muscle?
Deltoid
What is the front of the upper arm called?
Bicep
What is the chest muscle called
Pectorals
What is the stomach area muscle?
Abdominals
What is the upper leg muscle?
Quadriceps
What is the muscle bellow the neck on your back called?
Trapezius
What is the back of the upper arm called?
Triceps
What is the back muscles called?
Lattisimus Dorsi
What is the bum muscles called?
Gluteals
What is the back of the upper leg called?
Hamstrings
What is the back of the lower leg called?
Gastrocnemius
What is the functions of the pectorals
Adduct the arm at the shoulder joint as well as rotate the arm inwards.
What is the function of the biceps?
Cause flexion of the arm at the elbow
What is the function of the triceps?
Extend the arm at the elbow
What is the function of the Lattisimus Dorsi?
Adduct the arm backwards and rotate inwards
What is the function of the trapezius?
Extend the neck, lifting the head upwards
What is the function of the deltoid?
All movements of the arm
What is the function of the abdominals?
To bend the body forwards at the hip flexing the vertebrae.
What is the function of the gluteals?
Flex and extend the leg at the hip
What is the function of the hamstrings?
Straighten the hip and cause flexion of the leg at the knee
What is the function of the gastrocnemius?
Straighten the leg at the ankle to stand or point.
What is the function of the Quadriceps
Extend the leg at the knee
What is an antagonistic pair?
A pair of muscles that work together to create movement
Name 2 examples of antagonistic pairs?
Biceps and triceps
Quadriceps and Hamstrings
What can muscles only do?
Pull
What is the agonist?
What happens to the agonist when it pulls?
The muscle that contracts to allow movement.
It becomes shorter
What is the antagonist?
What happens to the antagonist during relaxation?
The muscle that relaxes whilst the agonist contracts.
The muscle becomes longer
What is the origin?
The end of the muscle that is attached to a bone that is stable
What is insertion?
The end of a muscle attached to the bone that moves
What is the agonist and antagonist during the upwards phase of a bicep curl?
Agonist= Biceps
Antagonist= Triceps
What is isotonic?
Contractions and providing movement
What is isometric?
When the muscles contract but stay in a fixed position, no movement occurs
Name an example of an isometric excerise.
A plank
What are the 3 types of muscle?
Involuntary
Cardiac
Skeletal
What is an involuntary muscle and where is it found?
A muscle that we do not control and found in the body’s internal organ
What is a cardiac muscle?
A muscle found at the heart and is also a type of involuntary muscle
What is a skeletal muscle(voluntary muscle) and what are they used for?
A muscle that is under our control through conscious thought and is used for movement.
