Flashcard: Muscular System Fundamentals — 20 carte

Muscular system composition?

Muscle tissue, vessels, nerves, connective tissue.

Muscle tissue — function?

Contract to produce movement.

Three muscle types?

Skeletal, cardiac, smooth.

Smooth muscle — location?

Walls of hollow organs.

Cardiac muscle — shape?

Rectangular with one nucleus.

Skeletal muscle — structure?

Long fibers in fascicles, connective tissue.

Muscle contraction — mechanism?

Sliding filaments of actin and myosin.

Contraction control — process?

Nerve impulses, acetylcholine, calcium.

Muscle pulls on bones via?

Tendons.

Muscle tone — maintained by?

Partial involuntary contractions.

Muscular atony — effect?

Floppy, loss of muscle elasticity.

Muscular atrophy — cause?

Wasting of muscle fibers.

Myalgia — meaning?

Muscle pain or aches.

Fibromyalgia — symptoms?

Widespread pain, fatigue, sleep issues.

Cramp — type of?

Prolonged involuntary muscle spasm.

Fibrositis — inflammation of?

Fibrous connective tissue.

Myositis — involves?

Inflammation of muscle fibers.

Sprain — injury to?

Ligament.

Strain — caused by?

Overstretching or overuse of muscle.

Tetanus — also called?

Lockjaw, caused by bacterial toxin.