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Muscular System. Eric Hernandez (body movement terminology…
Muscular System. Eric Hernandez
names of the muscles
ARM AND HAND
Abductor Hallucis Muscle
Anconeus Muscle
Biceps Brachii Muscle (Long Head)
Biceps Brachii Muscle (Short Head)
Brachialis Muscle
Brachioradialis Muscle
Coracobrachialis Muscle
Deltoid Muscle
LEG AND FOOT
Abductor Digiti Minimi Muscle of Foot
Adductor Brevis Muscle
Adductor Longus Muscle
Adductor Magnus Muscle
Biceps Femoris Muscle (Long Head)
Calcaneal (Achilles) Tendon
Dorsal Interosseous Muscles of Foot
Extensor Digitorum Brevis Muscle
Extensor Digitorum Longus Muscle
Extensor Digitorum Muscle
Major functions of the
muscular system
movement
be involuntary and controlled by smooth muscles.
Movement of our body can be voluntary and controlled by the skeletal muscles
maintain our posture and generate heat during activity
stabilize our joints
3 types of muscle tissues & their major functions/characteristics
Skeletal muscle
a single cylindrical muscle cell.
may be made up of hundreds, or even thousands, of muscle fibers bundled together and wrapped in a connective tissue covering
Each muscle is surrounded by a connective tissue sheath called the epimysium
cardiac muscle
also called heart muscle or myocardium
It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart.
Smooth muscle
also called involuntary muscle
muscle that shows no cross stripes under microscopic magnification
consists of narrow spindle-shaped cells with a single
centrally located nucleus
Smooth muscle tissue, unlike striated muscle, contracts slowly and automatically.
body
movement terminology
Flexion
Extension
Abduction
Adduction
Circumduction
Rotation
Supination
Pronation
Dorsiflexion
Plantar Flexion
Inversion
Eversion
Protraction
Retraction
Depression
Elevation
Excursion
Superior Rotation
Inferior Rotation
Opposition