| Question |
 |
|
| Answer |
|
|
| abduction |
moving away from the center or midline |
| actin |
contractile protein found in the skin myofilament of skeletal muscle |
| adduction |
moving toward the center or midline |
| all or none |
when stimulated, a muscle fiber will contract fully or not at all |
| antagonist muscle |
those having opposing actions |
| bursa |
small cushionlike sacs found between moving body parts |
| carpal tunnel syndrome |
muscle weakness pain and tingling in the radial side of the wrist, hand, and fingers |
| concentric contraction |
type of isotonic muscle contraction in which a muscle's length decreases |
| disuse atrophy |
when prolonged inactivity results in the muscles getting smaller in size |
| dorsiflexion |
when the top of the foot is elevated with the toes pointing upward |
| eccentric contraction |
type of isotonic muscle contraction in which a muscle's length increases under a load |
| eversion |
foot movement that turns the ankle so that the sole faces out to the outside |
| extension |
increasing the angle between two bones at a joint |
| fatigue |
loss muscle power |
| flexion |
act of bending, decreasing the angle between two bones at the joint |
| hypertrophy |
increased size of a part caused by an increase in the size of its cell |
| hypothermia |
subnormal core body temp below 37 degrees C |
| insertion |
attachment of a muscle to the bone that it moves when contraction occurs |
| inversion |
foot movement that turns the ankle so that the sole faces inward townard the midline of the body |
| isometric contraction |
type of muscle contraction in which muscle does not shorten |
| isotonic contraction |
of the same pressure or tension |
| motor neuron |
transmits nerve impulses from the brain and spinal cord to muscles and glandular epithelial tissues |
| motor unit |
a single motor neuron with the muscle cells it innervates |
| myofilament |
ultramicroscopic , threadlike structures found n myofibrils |
| myosin |
contractile protein found in the thick filaments of skeletal muscle |
| neuromuscular junction |
the point of contact between the nerve endings and muscle fibers |
| origin |
the attachment of a muscle to the bone that does not move when contraction occurs, as distinquished from insertion |
| oxygen debt |
continued increased metabolism that occurs in a cell to remove excess lactic acid that resulted from exercise |
| paralysis |
loss of the power of motion, especially voluntary motion |
| plantar flexion |
|
| posture |
k |
| prime mover |
k |
| pronation |
k |
| rotation |
k |
| sarcomere |
k |
| sliding filament theory |
k |
| supination |
k |
| synergist muscle |
k |
| tendon |
k |
| tensynovitis |
k |
| tetanic contraction |
k |
| threshold stimulus |
k |
| tonic contraction |
|
Buen Viaje lv.2 ch 8
