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Muscular System (Body Movement Terminology (Dorsiflexion (Lifting the…
Muscular System
Body Movement Terminology
Dorsiflexion
Lifting the superior surface of foot
towards shin
Plantar Flexion
Pointing toe
Circumduction
Proximal end of a limb is
stationary and the distal end moves in circle
Inversion
Turn sole of foot medially
Adduction
Movement of limb toward the
midline
Eversion
Turn sole of foot laterally
Abduction
Movement of limb away from
midline
Rotation
Movement of a bone around a
longitudinal axis
Supination
Forearm rotates laterally so
palm faces anteriorly
Hyperextition
Extension beyond 180°
Proration
Forearm rotates medially so
palm faces posteriorly
Extension
Movement that increases angle of
joint
Opposition
Movement of thumb to
touch tips of other fingers
Flexion
Movement that decreases angle of
joint
Structure and Organizational Levels of the Skeletal Muscle
Perimysium
Surrounds bundles of
muscle fibers
Endomysium
Separates each muscle
fiber from another
Epimysium
Outermost
covering
Each muscle fiber is a single, long, cylindrical muscle cell.
The sarcoplasm contains parallel myofibrils
Myofibrils are made up of many, joined end-to-end.
Beneath the sarcolemma lies sarcoplasm with many mitochondria
Major Functions of the
Muscular System
Poster
Stabalization
Movment
3 Types of Muscle Tissues & Their Major Functions/Characteristics
Major functions are Movment, Poster, and stabalization
Skeletal Muscle
Smooth Muscle
Cardiac Muscle
Three types of muscle tissue