Muscle Anatomy

Muscle Anatomy

• Three types of muscles• 12 basic muscles

Types of Muscles

• Voluntary- Those muscles that can be moved by our thoughts and actions.

• Involuntary- Reflex action is made without our thought.

• Cardiac- The muscle of the heart Ex: This muscle is constantly working automatically without thought or reflex being needed. Without this cardiac functioning muscle, we die!

Muscle Anatomy

• Gastrocnemius- the largest muscle in the calf of the leg, the action of which extends the foot, raises the heel, and assists in bending the knee.

• Basic exercise: toe/calf raises

Muscle Anatomy

• Biceps- The biceps is a muscle on the front part of the upper arm.

• Basic exercise: Arm curls• Triceps- a muscle having

three heads or points of origin, especially the muscle on the back of the arm

• Basic Exercise: arm extensions

Muscle Anatomy

• Latissimus Dorsi- a broad, flat muscle on each side of the mid-back, the action of which draws the arm backward and downward and rotates the front of the arm toward the body.

• Basic exercise: lat pull down

Muscle Anatomy

• Hamstrings- any of the muscles/tendons that bound the bend of the knee.

• Basic exercise: leg curls• Quadriceps- The large four-

part extensor muscle at the front of the thigh.

• Basic Exercise: leg extension

• Gluteus- any of the large muscles of the buttocks

• Basic exercise: lunges

Muscle Anatomy

• Pectorals- Refers to the broad band of muscles that extend across the chest

• Basic exercise: bench press• Deltoids- a large, triangular muscle

covering the joint of the shoulder, the action of which raises the arm away from the side of the body.

• Basic Exercise: Shoulder press• Trapezius-flat muscle on each side

of the upper and back part of the neck, shoulders

• Basic exercise: shoulder shrugs

Muscle Anatomy

• Abdominals- The abdominal muscles are a group of 6 muscles that extend from the lower ribs to the pelvis. They provide movement and support to the trunk, often called the core.

• Basic Exercise: Curl ups• Obliques- muscles on the side of

the upper body that help to assist in turning the body from side to side.

• Basic exercise: side leg lift

Muscle Anatomy

• Correctly label your own muscle man on the diagram provided. • Glue or tape into

your notebook on the output side.