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