Muscular System

Name the muscle fiber

100

• Slow contraction Speed
• Low Force
• High fatigue resistance
• Red Colour

Type 1 

200

• Very fast speed
• High Force
• Low fatigue resistance
• White

Type IIx(b)

300

• Fast contraction Speed
• Medium Force
• Medium fatigue resistance
• Pink Colour

Type IIa

Contractions

100

• Muscle contracts and changes length

IsoTONIC Contractions

200

• Muscles lengthening when under tension
• Origin and insertion move further away from each other
• Downward phase
• Resists the force of gravity

Isotonic ECCENTRIC contraction

300

• Muscle producing tension but staying the same length
• Body fixed in one position

IsoMETRIC Contraction

400

• Muscle shortening
• Origin and insertion of the muscle move closer together
• Muscle becomes fatter

Isotonic CONCENTRIC contraction

Muscle Pairs

100

• One muscle contracts to move the body part
• Other muscle contractions to return body part to original position

Antagonistic Muscle pairs

200

Bonus Round: Antagonistic Pairs

Bicep                   Tricep

Hamstrings          Quadriceps

Gluteus Maximus  Hip Flexors 

Gastrocnemius     Tibialis Anterior

Pectoralis Major    Latissimus Dorsi

300

• Assist the antagonistic pairs
• Support and stabilize the join and the rest of the body
• Trapezius muscle can act as a _____ when bicep is flexing elbow joint

Fixator

Name the Muscle

100

Abduction of the shoulder

Outward arm action in a jumping jack

Deltoid

200

Extend the elbow

Triceps

300

Flex the knee 

Hamstrings

400

Trunk Rotation

External obliques

500

Dorsiflexion of the ankle 

Tibialis anterior