Muscle Components
Cord-like structure that attaches muscles to the bone, muscles, and other connective tissue
What is the tendon?
Ability for the muscle to lengthen
What is extensibility?
Fascial covering of the entire muscle
What is epimysium?
Main neurotransmitter involved in muscle contraction
What is acetylcholine?
A sprain or strain injury occurring at the fourth/fifth cervical junction due to rapid acceleration or deceleration of the body
What is whiplash?
Thick myofilament
What is myosin?
Ability for the muscle to shorten
What is contractility?
Broad, flat tendon
What is an aponeurosis?
Responds to tension by inhibiting contraction, allowing stretching
What is the golgi tendon organ?
Painful spasmodic muscular contraction
What is a cramp?
Fatigue-resistant muscle fibers
What are slow-twitch?
Muscles that contract at the same time as prime movers
What are synergists?
The muscle attachment on the more move able bone during contraction
What is insertion?
This describes how muscle contraction occurs on a microscopic level
What is the sliding filament mechanism?
Inflammation of the fascia on the plantar surface of the foot
What is plantar fasciitis?
Thin myofilament
What is actin?
Muscle contraction where the muscle length stays the same while muscle tension increases
What is an isometric contraction?
Bands of connective tissue found mainly around the knees, elbows, ankles, and wrists
What is retinacula?
Skeletal muscle's contractile unit
What is a sarcomere?
Group of inherited disorders that involve progressive muscle weakness and loss of muscle tissue
What is muscular dystrophy?
Rapidly fatigable muscle fiber
What is fast twitch?
Opposing muscle that relaxes and stretches to allow the prime mover to activate
What is antagonist?
Process of motor unit activation based on need
What is recruitment?
Responds to stretch by stimulating reflexive muscle contractions
What is a muscle spindle?
Contracted state of the neck muscles causing an unnatural position of the head, sometimes called wryneck
What is torticollis?