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Muscles

QuestionAnswer
Sternocleidomastoid Side of neck
Trapezius Upper back and neck
Deltoid Shoulder
Biceps brachii Upper arm, anterior
Triceps brachii Upper arm, posterior
Pectoralis major Upper chest
Intercoastals Between ribs
Rectus abdominus Ribs to pubis (pelvis)
Latissimus dorsi Spine around to chest
Gluteus maximus Buttocks
Sartorius Front of thigh
Quadriceps femoris Front of thigh
Tibialis anterior Front of lower leg
Gastrocnemius Back of lower leg
External oblique Lateral anterior abdominal
Extensibility ability to be stretched
Elasticity allows muscle to return to its original shape
Cardiac Muscle Forms walls of heart,Contract to circulate,Involuntary muscle
Visceral or Smooth Contract to cause movement,found in internal body organs,Contract to cause movement,Digestive, respiratory, blood vessels, eyes
Skeletal Muscle Attached to bones,Causes body to move,need rest
Adduction Moving a body part toward the midline
Abduction Moving a body part away from the midline
Flexion Decreasing the angle between two bones, or bending a body part
Extension Increasing the angle between two bones, or straightening a body part
Rotation Turning a body part around its own axis; for example, turning the head from side to side
Circumduction Moving in a circle at a joint, or moving one end of a body part in a circle while the other end remains stationary, such as swinging arm in a circle
Pronation Turning a body part downward; turning “palm down”
Supination Turning a body part upward; turning “palm up”
Functions of muscles Attach to bones to provide voluntary movement,Produce heat and energy, Help maintain posture, Protect internal organs
Tendon strong, tough connective tissue cord
ORIGIN end that does not move
INSERTION end that moves when muscles contracts
ATROPHY wasting away- occurs when muscles are not used for long periods of time
CONTRACTURE severe tightening of a flexor muscle, permanent contraction
Agonist initiates movement
Antagonist reverses or opposes a particular movement
Superficial muscle closest to skin
Deep muscle closer to internal organs
Created by: tiffanya1189
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