The Muscular System

What does the muscular system do?

• It allows for the ____________________of the body whether ____________________ or ____________________.

• ____________________: muscles that you consciously control

• ____________________: muscles that are not consciously controlled.

___________________ Muscles

• They _______________________________________________________________________________________________________________ certain substances through.

• Smooth muscles are ____________________ muscles – Muscles that perform with out consciously being to to.

________________ Muscles• Allow the _______________ of the body to

move. They attach to the _______________ and are _______________ controlled.

• _______________: Allows joint to close ex. _______________

• _______________: allows joint to open ex. _______________

• Concentric contraction: ____________________________________________________________________________________________.

• Eccentric contraction: ____________________________________________________________________________________________.

• _____________________: moving away from the center toward the left or right as in rotation.

• Medial movement: ________________________________________________________________________.

• A____duction: (as if lifting to the side) motion away from the center.

• A____duction: (as if lowering from side) motion toward the center.

Cardiac Muscle

• It forms the wall of the __________________. These, too, are ______________________ muscles.

• Muscle Movements: functional name comes from the type of movement it permits.– Ex. Flexor: permits bending (flexion)– Adductor: movement toward axis (adduction)– Circumductor: allows a circular motion (circumduction)

• Muscle Growth: Develops when existing muscle fibers ________________________. – Strength and size differ among individuals because of

factors such as • __________________________• __________________________• __________________________• __________________________

Major MusclesStructure1. Shoulder/Neck•Pectoralis

• Major• Minor

•Deltoid•Rotator Cuff

• Supraspinatus• Infraspinatus• Teres Minor• Subcapularis

•Sternocleidomastoideus

Primary Function1. Shoulder/Neck•_______________________

•_______________________•_______________________

•__________________

Example Exercise1. Shoulder/Neck

Structure2. Chest/Ab•Rectus Abdominis•Oblique

• Internal, external•Transverse Abdominis•Diaphram

3. Hip•Illiopsoas

• Major, minor•Gluteus•Quadriceps

• Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

•Sartotius

4. Back•Trapezius•Lattissimus Dorsi•Levator Scapulae•Rhomboids

• Major, minor

Primary Function2. Chest/Ab•__________________Trunk•Lateral _________________

•_______________ abdomen•Raises and lowers _________

3. Hip•Hip _____________________

•________________________•________________________

•_________________________4. Back•_________________ scapula•__________________ of arm•Lateral _____________of neck•________________ of Scapula

Example Exercise2. Chest/Ab

3. Hip

4. Back

Structure5. Elbow/Wrist•Biceps•Triceps•Brachialis•Flexors•Extensors

6. Knee/Ankle•Hamstring

• Biceps femoris• Semitendinosus• Semimembranosus

•Quadriceps• Rectus femoris• Vastus lateralis• Vastus medialis• Vastus intermedius

•Gastrrocnemius•Soleus•Tibialis Anterior

Primary Function5. Elbow/Wrist•Flexes•Extension•Flexion•Flexion of hand/fingers•Extension of hand/fingers

6. Knee/Ankle•Flexes knee

•Extends knee

•Plantar flexion of foot•Plantar flexion of foot•Dorsiflexes

Example Exercise5. Elbow/Wrist•_____________________•_____________________•_____________________•_____________________•_____________________

6. Knee/Ankle•_____________________

•_____________________

•_____________________•_____________________•_____________________