Ch 10: muscular system Flashcards
Origin/head
Muscle in attached to more stationary of two bones
- (stationary)
Insertion
Muscle in attaches to bone with a greater movement
- (movement)
Belly
Largest portion between origin and insertion
Tendons
Attaches muscle to bone
Agonist
Muscle, when it contracts, causes main action
Primary mover
Major role in accomplishing movement
Antagonist
Muscle working in opposition to agonist
Synergists
Muscle works together to cause movement
Fixators
Prevents movement of origin of primary mover
Nomenclature location
Pectoralis, gluteus, brachial, ephemeral
Nomenclature size
Maximus, minimus, Logus, brevos
Nomenclature shapes
Deltoid, quadratus, trapezius, Teres
Nomenclature orientation
Rectus, oblique
Nomenclature number of heads
Biceps, triceps, quadriceps
Nomenclature, origin and insertion
Sternocleidomastoid, brachioradialis