Muscle Functionality

antagonistic pairs

• two muscles which work in opposing directions to one another

• striated muscle found in the heart

• the process used to convert glucose and oxygen into a useable form of energy called ATP

• when the muscle becomes shorter and thicker

contraction

• two muscles which work in opposing directions to one another

• striated muscle found in the heart

• the process used to convert glucose and oxygen into a useable form of energy called ATP

• when the muscle becomes shorter and thicker

extensor

• muscles that contract to straighten a joint

• muscles which contract to bend a joint

• the point where the muscle joins onto the bone

• the point on the bone where the muscle arises

flexor

• muscles that contract to straighten a joint

• muscles which contract to bend a joint

• the point where the muscle joins onto the bone

• the point on the bone where the muscle arises

insertion point

• muscles that contract to straighten a joint

• muscles which contract to bend a joint

• the point where the muscle joins onto the bone

• the point on the bone where the muscle arises

origin

• muscles that contract to straighten a joint

• muscles which contract to bend a joint

• the point where the muscle joins onto the bone

• the point on the bone where the muscle arises

Match the following

• Deltoid, Rhomboid, Trapezius

• Named for their functions

• Vastus lateralis, vastus medialis, vastus intermedius

• Named for their locations

• gluteus minimus, gluteus medius

• Named for it's size

• Adductors, flexors

• Named for the number of heads (origins)

• Biceps brachii, triceps brachii,

• Named for their shapes

Match the following

• the point of a muscle which attaches to a stationary bone

• Origin

• the largest part of the muscle containing the muscle cells

• Insertion

• the point of a muscle which attaches to a bone that performs the movement

• Belly

Think about the action of the triceps. Then label the origin, belly, and insertion.

a

b

c

belly

insertion

origin

Match the following

• a muscle that opposes the action of another

• Antagonist

• muscles working together in the same direction of motion

• Synergist

• a muscle that is most important in the creation of a specific action or movement

• Prime Mover or agonist