BSF Muscle
52 flashcards · Other · by ISAAC REEMTSMA
Convulsion
Involuntary muscle contractions.
Smooth Muscle
Muscle found in hollow internal organs.
Cardiac Muscle
Muscle specific to the heart.
Fascia
Connective tissue separating muscles.
Tendon
Connects muscle to bone.
Aponeurosis
Sheet-like tendon holding muscles together.
Epimysium
Layer surrounding skeletal muscle.
Perimysium
Divides muscle into compartments.
Endomysium
Thin covering around muscle fascicle.
Sarcoplasm
Cytoplasm of muscle fiber.
Myofibrils
Threadlike structures in muscle fiber.
Sarcomere
Segment of myofibril between Z lines.
Neuromuscular Junction
Connection between motor neuron and muscle fiber.
Sliding Filament Model
Process where myosin cross-bridges attach to actin, causing muscle contraction
Actin
Thin, twisted protein filament in muscle cells
Myosin
Thick protein filament with globular cross-bridges in muscle cells
Tropomyosin
Protein in actin filaments that regulates muscle contraction
Troponin
Protein in actin filaments that regulates muscle contraction
Acetylcholine
Neurotransmitter that stimulates muscle contraction
Acetylcholinesterase
Enzyme that stops muscle contraction by breaking down acetylcholine
ATP
High-energy molecule providing energy for muscle contraction
Creatine Phosphate
Molecule used to regenerate ATP for muscle energy
Lactic Acid
Byproduct of anaerobic metabolism causing muscle fatigue
Oxygen Debt
Oxygen needed to convert lactic acid to glucose and restore ATP levels
Muscle Tone
Slight muscle contraction at rest, important for posture
Threshold Stimulus
Minimum strength to cause muscle contraction
Recruitment
Activation of more motor units with higher stimulation
Myogram
Graph showing muscle contraction movement
Rigor mortis
Stiffness in muscles post-death lasting 72 hours.
Hypertrophy
Muscle growth due to exercise.
Atrophy
Muscle wasting from disuse.
Origin
Immovable end of a skeletal muscle.
Insertion
Movable end of a skeletal muscle.
Prime mover
Muscle mainly responsible for movement.
Synergists
Muscles aiding the prime mover.
Antagonists
Muscles opposing prime mover's action.
Fixator
Muscle stabilizing origin for efficient movement.
Smooth muscle
Involuntary muscle without striations.
Multi-unit smooth muscle
Less organized smooth muscle type.
Visceral smooth muscle
Sheet-like smooth muscle type.
Peristalsis
Wave-like movement in tubular organs.
Cardiac muscle
Involuntary striated muscle in the heart.
Muscular Dystrophy
Genetic disease causing muscle weakness.
Arthrogryposis
Joint shortening leading to muscle weakness.
Myasthenia gravis
Weakness from neuromuscular junction issues.
Myalgia
Muscle pain from disease.
Myokymia
Persistent muscle quivering.
Myositis
Inflammation of skeletal muscle tissue.
Paralysis
Complete loss of muscle movement.
Paresis
Partial paralysis of muscles.
Shin splints
Pain in lower leg from muscle strain.
Skeletal Muscle
Muscle type connected to bone