link8 Word Scramble
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Question | Answer |
2 muscles the are striated | cardiac and skeletal |
intercalated disk | membrains that appear as dark lines between cells |
intercalated disk are found in the | cardiac muscle |
3 primary functions of skeletal muscles | movement of the skeleton,maintence of posture,generation of heat |
fascicle | individual muscle fibers arranged in bundles |
endomysium | deepest layer that surrounds the individual fibers in the fascicles |
motor unit | single neuron and all muscle fibers it stimulates |
neurotransmitter is released at the neuro muscular junction | acetylcholine(ACH) |
excitability | able to transmit electrical currents along with plasma membrane |
myoglobin | stores additional oxygen |
when does muscle relaxtion occur | when stimulation ends and the calcium is pumped back into the ER |
ATP | used to detach myosin heads and move them back in position for another power stroke |
contractility | the compacity of muscle fiber to undergo shortening and to change its shape becoming thicker |
what gives the skeletal muscle its straited appearance | actin(thin) myosin(thick) |
when muscles r at rest what 2 proteins block the sites on actin filaments where cross bridges can form | troponin and tropomyosin |
what has to attach to proteins so that binding sites are uncovered | calcium |
muscle tone | partially contracted state of muscle that is normal even when muscle is not in use |
hypertrophy | muscle cells increase in size |
lactic acid | accumulates in cells during anaerobic metabolism |
anaerobic | not requiring oxygen |
prime mover | muscle that performs movement |
insertion | attachment to part of the body that muscle puts into action |
orgin | less movable(more fixed) attachment |
isometric | no change in muscle length but there is a great increase in muscle tension(ex.pushing against a immovable force) |
isotonic | tone or tension w/in a muscle remains the same but muscle as whole shortens producing movement(ex.lifting weights) |
trapezius | posterior of neck and upper back to clavicle and scapula,raises shoulder and pulls it back,extends head |
diaphragm | dome shaped partition between thoracic and abdominal cavities,dome decends to enlarge thoricac from to to bottom |
glycogen | stores additional glucose |
creatine | stores energy |
class of lever being used when the bicep flexes the forearm at the elbow | third class |
muscle of the lips | orbicularis oris |
muscle that refers to the fleshy part of the cheek | buccinator or trumpeters muscle |
temporalis | surerior to ear(largest muscle to mastication) |
messeter | anlge of the jaw(largest muscle to mastication) |
wryneck | common name for torticollis |
where is the iliopsoas located | crosses fron of hip joint to femur |
muscle that covers the anterior and lateral femur | quadriceps femoris |
what do hamstrings do | flexes leg |
what muscle is being used standing on tip toes | gastrochemius |
antagonist to the gastrocemius | tibilis anterior |
student elbow | olecranon bursitis |
house maids knee | prepatellar bursitis |
contractility | capacity of muscle fiber to undergo shortening and chage shape becoming thicker |
lever | bone |
fullcrum | joint |
antagonist | muscle that produces an opposite movement to that of the prime mover |
synergist | w/w prime movers to acomplish a movement |
obicularis | circular |
rectus | straight |
ceps | # of heads(attachment points) |
flexor | bending |
levator | lifter |
sternocleidomastoid | head foward on chest |
tranversus abdominis | innermost abdominal muscle |
what does the gluteus medius do | abducts thigh |
spasm | sudden involuntary muscle contraction |
colic | spasm of visceral muscles |
atrophy | waising or decrease in size of a muscle it cannot be used |
myalgia | muscular pain |
fibrositis | inflamation of connective tissue,refers to tissue associated muscle and joint |
carpal tunnel effects the tendons and | flexor muscles of fingers and nerves in hands and fingers |
when muscles are at rest what two proteins block the sites on actin filaments where cross bridges can form | troponin and tropomyosin |
Created by:
cornejo
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