Muscle fiber another name for muscle cells Eccentric muscle contraction where muscle is enlongating Myofibrils general name for proteins within muscle fibers Overload principle muscle will build up to prevent muscle damage from occurring again Perimysium dense irregular CT; fascicle level Biceps Brachii flexes forearm Aponeurosis Indirect attachment of muscles to each other using a sheet- like tissue Insertion term for ending point of muscle that will move during muscle contraction Orbicularis Oris closes mouth Palmaris Longus can be seen when you oppose fingers and flex wrist Tendon Indirect attachment of muscles to each other using a rope- like tissue Fast Glycolytic Fibers easily fatigable but good for short, powerful movements Gastrocnemius and Soleus plantar flexion Summation the combination of messages/action potentials onto a muscle fiber Fast Oxidative Fibers moderately fatigable and will normally use aerobic respiration; has ability to use some anaerobic respiration Sarcolemma plasma membrane for muscle cells Muscle tone the idea that muscle is always somewhat activated Contractility ability to shorten muscle tissue Isometric muscle contraction where there is no movement Latent period starts when sarcolemma is activated; ends when calcium reaches troponin Fascicle group of muscle cells Neuromuscular Junction (NMJ) where the end of a motor neuron connects with the sarcolemma of a muscle cell Synergist muscle that helps the main mover do its function Acetylcholine (ACh) neurotransmitter that activates the sarcolemma Frontalis raises eyebrows Endomysium areolar CT; around sarcolemma of muscle fibers Latissimus Dorsi arm extension Slow Oxidative Fibers fibers that solely rely on cellular respiration; fatigue- resistant Elasticity recoil ability of muscle tissue Hamstrings thigh extensors and knee flexors Concentric muscle contraction where muscle is shortening Platysma seen when straining the neck Trapezius stabilizes and depresses/elevates scapula Calcium chemical that allow ACh release and troponin binding Isotonic muscle contraction where the length changes Z discs structure of sarcomere that marks the ends Orbicularis Oculi closes eyes Epimysium dense irregular CT; surrounds whole muscles Buccinator sucks in cheeks Pectoralis Major arm adduction Tibialis Anterior dorsiflexion Excitability muscle ability to respond to stimuli Twitch muscle contraction activated by only one action potential H zone part of sarcomere with only thick filaments Contraction period starts when calcium binds with troponin and ends when they unbind Actin thin filaments Deltoid arm abduction Agonist main mover of a movement Internal Intercostals pushes out air for exhalation External Intercostals opens ribcage for inspiration Smooth muscle involuntary, uninucleate, and non- striated Cross- bridge cycle starts with calcium binding with troponin, and ends when they unbind M line middle part of sarcomere made of supporting proteins Sarcoplasmic Reticulum (SR) organelle specific to muscle fibers that allows for calcium release Antagonist muscle that does the opposite function of a main mover; example is biceps and triceps Skeletal muscle voluntary, multinucleate, and striated Sartorius longest muscle in the body; thigh flexion Gluteus Maximus biggest muscle in the body; thigh extensor Myoglobin protein within muscle cell that is responsible for holding oxygen Excitation- contraction coupling entire process of activating the NMJ to contraction of muscle T- Tubule organelle specific to muscle fibers that allows communication Origin term for starting point of muscle that would not move during muscle contraction Motor unit a motor neuron and all of the muscle fibers it supplies Cardiac muscle involuntary, uninucleate, and striated Mentalis wrinkles the chin Troponin regulatory protein that binds with calcium Sternocleidomastoid turns head laterally Extensibility ability to stretch muscle tissue without damaging it Sarcomere functional unit of muscle tissue A band 'dark' zone that is made up of H zone and zone of overlap I band part of sarcomere with only thin filaments Masseter mastication Tropomyosin regulatory protein that blocks binding sites on actin Action Potential change of RMP that causes activation of a cell Quadriceps thigh flexors and knee extensors Myosin thick filaments Zygomaticus smiling muscle Triceps Brachii extends forearm Relaxation period period where myosin and actin filaments are sliding back to their original positions Muscle fiber another name for muscle cells Eccentric muscle contraction where muscle is enlongating Myofibrils general name for proteins within muscle fibers Overload principle muscle will build up to prevent muscle damage from occurring again Perimysium dense irregular CT; fascicle level Biceps Brachii flexes forearm Aponeurosis Indirect attachment of muscles to each other using a sheet- like tissue Insertion term for ending point of muscle that will move during muscle contraction Orbicularis Oris closes mouth Palmaris Longus can be seen when you oppose fingers and flex wrist Tendon Indirect attachment of muscles to each other using a rope- like tissue Fast Glycolytic Fibers easily fatigable but good for short, powerful movements Gastrocnemius and Soleus plantar flexion Summation the combination of messages/action potentials onto a muscle fiber Fast Oxidative Fibers moderately fatigable and will normally use aerobic respiration; has ability to use some anaerobic respiration Sarcolemma plasma membrane for muscle cells Muscle tone the idea that muscle is always somewhat activated Contractility ability to shorten muscle tissue Isometric muscle contraction where there is no movement Latent period starts when sarcolemma is activated; ends when calcium reaches troponin Fascicle group of muscle cells Neuromuscular Junction (NMJ) where the end of a motor neuron connects with the sarcolemma of a muscle cell Synergist muscle that helps the main mover do its function Acetylcholine (ACh) neurotransmitter that activates the sarcolemma Frontalis raises eyebrows Endomysium areolar CT; around sarcolemma of muscle fibers Latissimus Dorsi arm extension Slow Oxidative Fibers fibers that solely rely on cellular respiration; fatigue- resistant Elasticity recoil ability of muscle tissue Hamstrings thigh extensors and knee flexors Concentric muscle contraction where muscle is shortening Platysma seen when straining the neck Trapezius stabilizes and depresses/elevates scapula Calcium chemical that allow ACh release and troponin binding Isotonic muscle contraction where the length changes Z discs structure of sarcomere that marks the ends Orbicularis Oculi closes eyes Epimysium dense irregular CT; surrounds whole muscles Buccinator sucks in cheeks Pectoralis Major arm adduction Tibialis Anterior dorsiflexion Excitability muscle ability to respond to stimuli Twitch muscle contraction activated by only one action potential H zone part of sarcomere with only thick filaments Contraction period starts when calcium binds with troponin and ends when they unbind Actin thin filaments Deltoid arm abduction Agonist main mover of a movement Internal Intercostals pushes out air for exhalation External Intercostals opens ribcage for inspiration Smooth muscle involuntary, uninucleate, and non- striated Cross- bridge cycle starts with calcium binding with troponin, and ends when they unbind M line middle part of sarcomere made of supporting proteins Sarcoplasmic Reticulum (SR) organelle specific to muscle fibers that allows for calcium release Antagonist muscle that does the opposite function of a main mover; example is biceps and triceps Skeletal muscle voluntary, multinucleate, and striated Sartorius longest muscle in the body; thigh flexion Gluteus Maximus biggest muscle in the body; thigh extensor Myoglobin protein within muscle cell that is responsible for holding oxygen Excitation- contraction coupling entire process of activating the NMJ to contraction of muscle T- Tubule organelle specific to muscle fibers that allows communication Origin term for starting point of muscle that would not move during muscle contraction Motor unit a motor neuron and all of the muscle fibers it supplies Cardiac muscle involuntary, uninucleate, and striated Mentalis wrinkles the chin Troponin regulatory protein that binds with calcium Sternocleidomastoid turns head laterally Extensibility ability to stretch muscle tissue without damaging it Sarcomere functional unit of muscle tissue A band 'dark' zone that is made up of H zone and zone of overlap I band part of sarcomere with only thin filaments Masseter mastication Tropomyosin regulatory protein that blocks binding sites on actin Action Potential change of RMP that causes activation of a cell Quadriceps thigh flexors and knee extensors Myosin thick filaments Zygomaticus smiling muscle Triceps Brachii extends forearm Relaxation period period where myosin and actin filaments are sliding back to their original positions
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another name for muscle cells
muscle contraction where muscle is enlongating
general name for proteins within muscle fibers
muscle will build up to prevent muscle damage from occurring again
dense irregular CT; fascicle level
flexes forearm
Indirect attachment of muscles to each other using a sheet-like tissue
term for ending point of muscle that will move during muscle contraction
closes mouth
can be seen when you oppose fingers and flex wrist
Indirect attachment of muscles to each other using a rope-like tissue
easily fatigable but good for short, powerful movements
plantar flexion
the combination of messages/action potentials onto a muscle fiber
moderately fatigable and will normally use aerobic respiration; has ability to use some anaerobic respiration
plasma membrane for muscle cells
the idea that muscle is always somewhat activated
ability to shorten muscle tissue
muscle contraction where there is no movement
starts when sarcolemma is activated; ends when calcium reaches troponin
group of muscle cells
where the end of a motor neuron connects with the sarcolemma of a muscle cell
muscle that helps the main mover do its function
neurotransmitter that activates the sarcolemma
raises eyebrows
areolar CT; around sarcolemma of muscle fibers
arm extension
fibers that solely rely on cellular respiration; fatigue-resistant
recoil ability of muscle tissue
thigh extensors and knee flexors
muscle contraction where muscle is shortening
seen when straining the neck
stabilizes and depresses/elevates scapula
chemical that allow ACh release and troponin binding
muscle contraction where the length changes
structure of sarcomere that marks the ends
closes eyes
dense irregular CT; surrounds whole muscles
sucks in cheeks
arm adduction
dorsiflexion
muscle ability to respond to stimuli
muscle contraction activated by only one action potential
part of sarcomere with only thick filaments
starts when calcium binds with troponin and ends when they unbind
thin filaments
arm abduction
main mover of a movement
pushes out air for exhalation
opens ribcage for inspiration
involuntary, uninucleate, and non-striated
starts with calcium binding with troponin, and ends when they unbind
middle part of sarcomere made of supporting proteins
organelle specific to muscle fibers that allows for calcium release
muscle that does the opposite function of a main mover; example is biceps and triceps
voluntary, multinucleate, and striated
longest muscle in the body; thigh flexion
biggest muscle in the body; thigh extensor
protein within muscle cell that is responsible for holding oxygen
entire process of activating the NMJ to contraction of muscle
organelle specific to muscle fibers that allows communication
term for starting point of muscle that would not move during muscle contraction
a motor neuron and all of the muscle fibers it supplies
involuntary, uninucleate, and striated
wrinkles the chin
regulatory protein that binds with calcium
turns head laterally
ability to stretch muscle tissue without damaging it
functional unit of muscle tissue
'dark' zone that is made up of H zone and zone of overlap
part of sarcomere with only thin filaments
mastication
regulatory protein that blocks binding sites on actin
change of RMP that causes activation of a cell
thigh flexors and knee extensors
thick filaments
smiling muscle
extends forearm
period where myosin and actin filaments are sliding back to their original positions
