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