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Muscle Kinesiology. Anatomy & Physiology. Many of the names come from Latin and the regional skeletal bones How many skeletal muscles can you name?. Who came up with those LONG names?. Muscle Movement. Movement produced by contraction and pulling on attached bone
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Muscle Kinesiology Anatomy & Physiology
Many of the names come from Latin and the regional skeletal bones How many skeletal muscles can you name? Who came up with those LONG names?
Muscle Movement • Movement produced by contraction and pulling on attached bone • Point of attachment of tendons to bones is called ORIGINS AND INSERTIONS • ORIGIN: attachment to stationary/immovable bone • INSERTION: attachment to movable bone
Contraction causes insertion to be pulled to origin. • 2. Long head- tendon attaches to scapula • 3. Short head- attached to clavicle
Group Action: muscles working in groups to produce body movement • Prime Movers: (agonist) Muscles primarily involved in being responsible for a particular movement i.e-raising hand(deltoid) • Antagonists: Muscles that oppose or reverse the action of the PM. • Synergist: (helper) muscle that aids the PM in a particular movement.
Prime mover- biceps Antagonist-triceps brachii Synergists- other muscles of forearm to stabilize the elbow joint
1.Flexion/Extension: quadriceps femoris and hamstrings for hip and knee 2.Abduction/Adduction: lats and deltoid for arm 3.Elevation/Depression: various parts of traps to shrug and release shoulders Primary Antagonistic Actions of Muscular system (examples of)
Cont. • 4.Pronation/Supination: flexor and extension muscles in hand allow palm to turn in, palm turned out=thumbs up/thumbs down • 5.Dorsiflexion/Plantar flexion: tibialis anterior vs tibialis posterior= foot flexion up and foot extension down. • 6.Inversion/Eversion:tibialis anterior/posterior and fibularis longus= foot in and out
Quick Quiz (2 points/bullet) • 1.Points of attachment of tendons to bone are called: • 2.Muscles that oppose the prime mover (agonist) are called what? • 3.Which of the 7 ways we name muscles helps explain the naming of the rectus abdominus? • 4. Give an example of a muscle name based on its shape (also give the shape)? • 5.What two groups of muscles work to flex and extend the knee and hip?