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Muscle exam

Question/ termsAnswers
Cardiac Muscle Intercalated
Smooth Muscle Involuntary Non-striated
Another name for smooth muscle Visceral muscle
Twitch contraction Laboratory phenomena and normal muscle activity
Tetanic Contraction Sustained muscle contraction caused by stimuli letting muscle in rapid succession
Isotonic Contraction Movement
Isometric Contraction No movement
Atrophy Decrease
Hypertrophy Increase muscle size
Strength training Exercise involving contraction of muscle against heavy resistance
Endurance training Increase muscle and blood vessels
Skeletal Muscle Voluntary,Cell Shape,Striated
When a muscle contract Z lines are pulled closer together
To produce smooth movement at a joint Prime mover and Synergist must be contracted
The number of motor units involved allows us to partially contract different weight a whole muscle The number of motor united needed
Sliding Filament A sarcomere to contract, bridges must form between actin & myosin, calcium must be released from the endoplasmic reticulum and ATP must be broken down for energy or all the above
Tonic Contraction Muscle tone, low strength muscle, enable us to maintain body position
Microanatomy of the sarcomere Thin and thick filament, Actin and Myosin and z line from z line
Contraction Basic physiology, z line gets closer together
Trunk Abdominal Muscle
Rectus Abdominis Flexes trunk
External oblique Compresses abdomen
Internal oblique Compresses abdomen
Transversus Abdominis Compresses abdomen
Upper extremity Arms
Pectorails Major Flexes upper arm
Latissimus Dorsi Extends upper arm
Deltoid Abducts upper arm
Biceps Brachii Flexes forearm
Triceps Brachii Expands forearm
Head and neck Facial muscle
Orbicularis oculi Close eyes
Orbicularis Oris Draw lips together or kiss
Zygomaticus Elevates corner of mouth and lips or Smiles
Masseter Close jaw
Temporal Close jaw
Sternocleidomastoid Flexes head
Trapezious Elevates shoulders and expands head
Lower Extremity Legs and thighs
Iliopsoas Flexes thigh
Gluteus Maximus Expands thigh
Adductor Muscle Adduct thigh
Hamstrings muscle Flex lower leg
Semimembranous Flexes knee
Semitendinosus Flexes knee
Biceps femoris Flexes knee
Quadriceps femoris group
Rectus femoris Extends knee
Vastus laterals Extends knee
Medialis Extends knee
Intermedius Extends knee
Tibial anterior Dorsiflexes foot
Gastrocnemius Plantar flexes foot
Peroneus group Flex foot
Created by: DesarayHill