Musculo System Flashcards
(34 cards)
What are the 12 voluntary muscles?
- Deltoid
- Pectoralis major
- Latissimus dorsi
- Biceps
- Triceps
- External obliques
- Gluteals
- Hip flexors
- Quadriceps
- Hamstrings
- Gastrocnemius
- Tibialis anterior
Location and function of Gluteals
- In the middle of the body at the back forming the bottom
- Adduct and extend the leg at the hips, pull the leg backwards
Location and function of Hamstrings
- At the top of the each leg at the back
- Flex the legs at the knees
Location and Function of Gastrocnemius
- At the bottom of each leg at the back. Also known as the calf muscles
- Point the toes at the ankle (plantar flexion)
Location and Function of the Latissimus Dorsi
- At the back of the body either side of the chest
- Pull your arms down at the shoulders and behind your back (adduct and extend)
Location and Function of the Triceps
- At the top of each arm at the back
- Extend arm at the elbow
Location and Function of the Deltoids
- In the upper part of the body, covering the shoulders
- Raise the arms in all directions at the shoulder
Location and Function of the Biceps
- At the top of the arm at the front
- Flex the arm at the elbow
Location and Function of the Quadriceps
- At the top of the leg at the front
- Extends the leg at the knee
Location and Function of Pectoralis majors
- Upper part of the chest at the front
- Adduct the arm at the shoulder
Location and Function of the External obliques
- Either side of the abdomen
- Pull the chest downwards. Flex and rotate the spinal column
Location and Function of the Tibialis anterior
- Runs down the shin
- Pull the toes up towards the shin (dorsi-flexion)
Location and Function of the Hip flexors
- Sit deep in the front of the hip and connect to the leg
- Flex the hip, help the leg and knee up towards the body
What are voluntary muscles ?
Voluntary muscles are under your control, you can choose when to contract or relax them . Voluntary muscles can only pull they do this by contracting
Why are voluntary important in sport ?
They control if you were running for example you have control of your legs .
What are Involuntary muscles?
Involuntary muscles are the muscles we cant control . They can contract and relax automatically by involuntary muscles system . They can be found in the digestive organs and urinary systems .
Why do we need the involutray muscles ?
Its good to get rid of the build up of lactic acid and helps oxygen flow around your body
What is a cardiac muscles ?
Only found in the wall of the heart it is a very special specialised type of involuntary muscle. Cardia muscles is made up of interlaced fibres . These fibres can spread electronicall signals from the brain right through the heart making the cells all. Contract together
What do we mean by antagonistic pairs ?
An antagonistic pairs is where one muscles contracts (agonist) against the other relaxes (antagonist) to allow the joint to work
Examples: Bicep,tricep
Quadriceps,hamstring
Tibuliaes anterior,gastrocnemius
Whats the antagonistic pairs that contract and relax?
Contract =Agonist(mr angry)
Relaxes=Antagonist(not angry)
What are slow twitch fibre -Type 1?
Type 1 fibres are a slow contraction velocity, are very resistant to fatigue and are capable of repeated low -level contractions producing large amounts of ATP -Example=marathon runner
What are fast twitch - type 2a fibres?
Type 2a fibres are manufacture and split ATP at a fast by using both aerobic and anaerobic metabolism and its produce a fast,strong muscle contractions . Example=800m runner
What are the fast twitch - type 2b fibres?
Type 2b produce ATP at a slow rate by anaerobic metabolism and break it down very quickly. This results in extremely fast muscle contractions to produce short,fast bursts of power and rapid fatigue .
Example=100m runner
What are Voluntary muscles?
Muscles that you control, you can choose when to contract and relax. Voluntary muscles can only pull, not push.
