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