revision pt 2

Front

Main functions of muscles in the human body

Back

- Producing movement - Stabilising body position - Movement of substances - Regulating organ movement - Producing heat

Front

Properties of muscle tissue: Excitability

Back

Muscle tissue can respond to a stimulus, generating an electrical signal triggering muscle activity.

Front

Properties of muscle tissue: Contractility

Back

Muscle tissue can actively contract (shorten) producing force to move bones and perform other functions.

Front

Properties of muscle tissue: Elasticity

Back

Muscle tissue can stretch but is able to return/contract to original shape.

Front

Properties of muscle tissue: Extensibility

Back

The ability of muscle tissue to be stretched or extended beyond relaxed length without being damaged.

Front

Role of fascia in muscle functioning

Back

Fascia is connective tissue that surrounds the muscles, providing protection and stability to the muscles.

Front

Protein filaments that slide past each other during muscle contraction

Back

Actin and Myosin

Front

Percentage of blood volume made up of plasma

Back

Plasma makes up about 55% of blood volume and is mostly comprised of water with the rest being proteins, nutrients, electrolytes, waste products, hormones, and enzymes.

Front

Role of Endothelin

Back

Endothelin is a potent vasoconstrictor of arterioles.

Front

Role of Nitric Oxide

Back

Nitric Oxide is a key vasodilator, balancing constrictive effects of endothelin to maintain healthy blood flow.