Muscles Video

Converting mechanical energy into chemical potential energy.

Converting electrical energy into thermal energy.

Converting chemical potential energy into mechanical energy.

Converting thermal energy into electrical energy.

Smooth, rough, and cardiac

Skeletal, cardiac, and smooth

Voluntary, involuntary, and cardiac

Striated, non-striated, and cardiac

Myofibril -> Muscle fiber -> Fascicle -> Muscle

Muscle fiber -> Myofibril -> Fascicle -> Muscle

Fascicle -> Myofibril -> Muscle fiber -> Muscle

Muscle -> Fascicle -> Muscle fiber -> Myofibril

Troponin and Tropomyosin

Actin and Myosin

Collagen and Elastin

Keratin and Fibrin

To store genetic information

To act as a molecular currency containing chemical energy

To transport oxygen

To form the structural framework of the cell

Producing ATP

Storing and releasing calcium ions

Synthesizing proteins

Transporting waste products

Dopamine

Serotonin

Acetylcholine

GABA

They bind to tropomyosin, exposing myosin-binding sites on actin

They bind to troponin, causing tropomyosin to move and expose myosin-binding sites on actin

They directly bind to myosin heads, initiating the power stroke

They activate ATP production in mitochondria