Cards
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Contractility | muscle shorten with force
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| Excitability | reponse to stimulus
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| Extensibility | stretched
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| elasticity | recoil to orginal length
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| epimysium | connective tissue on muscles
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| Fascia | connective tissue outside the epimysium
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| perimysium | loose connective tissue
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| fibers | single muscle cells
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| endomysium | fiber is surrounded by thiis
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| myofibrils | Thread like structure from one end of a fiber to another
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| Resting membrane potential | charge difference across the membrane
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| Action Potential | brief reverseal back of the charge
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| Motor nerouns | nerve cells that carry action potientials
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| synapse | branch formed by muscles
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| motor unit | single neuron in fibers
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| presynaptic terminal | enlarged nerve terminal
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| Synaptic cleft | between the presynaptic
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| postsynaptic terminal | muscle fiber
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| synaptic vesicles | secrete the acetylcholine
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| Muscle twitch | contraction of a muscle
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| Lag Phase | time between application of a stimulus
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| Contraction phase | time of Contraction
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| Relaxation Phase | muscle relaxes
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| Tetany | Muscle remains contracted without relaxing
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| recruitment | motor units activating
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| Creatine Phosphate | high energy molecule
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| Anaerobic respiration | without oxygen
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| Aerobic respiration | with oxygen
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| Muscle Fatigue | muscle contracts faster than can produce
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| isometric | equal distance
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| isotonic | equal tension
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| Fast twitch | fatigue quickly
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| slow twitch | contract slow
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| Origin | head
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| Insertion | end of muscle
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| belly | between head and end
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| Occipitofrontalis | raises eyebrows
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| bcularis oculi | causes crows feet
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| orbicularis orbis | puckers the lips
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| buccinator | flattens cheeks
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| zygomaticus | smiling muscleowning
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| levator labii superioris | sneering
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| depressor anguli oris | frowning
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| mastication | chewing
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| intristic tounge | shape
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| extrinsic | movement
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| sternocleidomastoid | prime mover
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| plastysma | pulls mouth
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| erector spinae | back straight
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| thoracic muscle | move thorax
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| External Intercostals | elevate ribs during inspiration
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| Internal Intercostals | Contracted during forced expiration
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| Diaphragm | accomplishes quiet breathing
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| Abdominal wall Muscles | flex AND rotate vertebral columnn
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| Linea Alba | tendious area of wall
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| rectus abdominals | lines on each side of alba
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| Tendinous inscriptions | cross rectus
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| Trapezius | rotates Scapula
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| Serratus anterior | Pulls Scapula Anteriorly
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| Pectoralis Major | adducts and flexs the arm
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| Latissimus Dorsi | medaily rotates adducts and powerfully extends the arm
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| Deltoid | attaches the humerus to the scapula
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| Triceps brachii | extends forearm
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| Biceps brachii | flexes forearm anterior compartment
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| Brachialis | flexes forearm
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| Brachioradialis | flexes and supinates forearm
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| Retinaculum | bracelete
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| Flexor Carpi | flexes wrist
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| extensor carpi | extends wrist
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| flexor digtorum | flexes fingers
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| ectensor digtorum | extends fingers
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| Gluteus Maximus | Buttocks
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| Quadriceps femoris | extends leg
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| Sartorius | flexes thigh
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| Hamstring | postieror thigh muscle
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| Achillies tendon | flex toes
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| soleus | calf
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Created by:
Svhs16
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