Muscular System Contractility : ability of the muscle to shorten. Extensibilit y: ability of muscle to lengthen. Elasticity : ability of muscle to return to normal size. Atrophy : is the wasting of muscle tissue Hypertrophy : is the increase in size of muscle tissue. Controlled by nerve stimuli . Fed by capillaries . Characteristics common to muscle tissue
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Muscular System
Contractility: ability of the muscle to shorten.
Extensibility: ability of muscle to lengthen. Elasticity: ability of muscle to return to
normal size. Atrophy: is the wasting of muscle tissue Hypertrophy: is the increase in size of
muscle tissue. Controlled by nerve stimuli. Fed by capillaries.
Characteristics common to muscle tissue
Characteristics common to muscle tissue
Muscular System
Smooth Cardiac Skeletal
Different types muscle tissueDifferent types muscle tissue
Muscle fibers are made up of a group of myofibrils.
Myofibrils contain myofilaments.
The myofibrils have distinct, repeating microanatomical units, termed sarcomeres, which represent the basic contractile units of the muscle fiber/cell (myocyte).
Myofilaments (actin & myosin) are responsible for muscle movement.
Structure of skeletal muscle Structure of skeletal muscle Structure of skeletal muscle
Muscular System
Myofilaments: (Thick and Thin) Myosin: thick filaments Actin: thin filaments A unit of thick and thin filaments is
known as a Sarcomere. These structures hold the key to
muscle contraction. The staggered thin and thick filaments has the effect as one might pull a rope towards oneself hand over hand.
Structure of skeletal muscle Structure of skeletal muscle
Muscular SystemStructure of skeletal muscle Structure of skeletal muscle
Muscular SystemStructure of skeletal muscle Structure of skeletal muscle