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