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