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Muscles of the Body
Major muscles, muscle types and how muscles work.
0 of 54 known
54 cards
- Biceps brachiiMuscle / termFront of the upper arm; bends the elbow
- Triceps brachiiMuscle / termBack of the upper arm; straightens the elbow
- DeltoidMuscle / termShoulder muscle that lifts the arm
- Pectoralis majorMuscle / termLarge chest muscle
- Latissimus dorsiMuscle / termBroad muscle of the back
- TrapeziusMuscle / termMuscle across the upper back and neck
- AbdominalsMuscle / termMuscles of the belly that help the trunk bend and twist
- Gluteus maximusMuscle / termThe largest muscle in the body, in the buttock
- QuadricepsMuscle / termFour muscles at the front of the thigh that straighten the knee
- HamstringsMuscle / termMuscles at the back of the thigh that bend the knee
- GastrocnemiusMuscle / termThe big calf muscle
- SoleusMuscle / termCalf muscle lying below the gastrocnemius
- Tibialis anteriorMuscle / termMuscle on the front of the shin
- SartoriusMuscle / termLong strap-like muscle of the thigh
- MasseterMuscle / termChewing muscle in the jaw
- Orbicularis oculiMuscle / termMuscle that closes the eyelids
- DiaphragmMuscle / termMuscle that helps you breathe
- IntercostalsMuscle / termMuscles between the ribs
- Rotator cuffMuscle / termGroup of shoulder muscles that stabilize the joint
- Achilles tendonMuscle / termStrong tendon that connects the calf muscles to the heel
- Skeletal muscleMuscle / termVoluntary muscle attached to bones; striped
- Smooth muscleMuscle / termInvoluntary muscle in organs such as the stomach
- Cardiac muscleMuscle / termMuscle of the heart
- Voluntary muscleMuscle / termOne you can control
- Involuntary muscleMuscle / termOne that works without you thinking
- TendonMuscle / termConnects muscle to bone
- LigamentMuscle / termConnects bone to bone
- ContractionMuscle / termWhen a muscle shortens
- Muscles can onlyMuscle / termPull; they cannot push
- Antagonistic pairMuscle / termTwo muscles that work in opposite ways, like biceps and triceps
- FlexorMuscle / termA muscle that bends a joint
- ExtensorMuscle / termA muscle that straightens a joint
- Muscle fiberMuscle / termA long muscle cell
- MyofibrilMuscle / termThread-like part inside a muscle fiber that contracts
- Actin and myosinMuscle / termProteins that slide to make muscles contract
- ATPMuscle / termThe energy molecule muscles use
- Lactic acidMuscle / termA by-product that can build up in tired muscles
- Muscle toneMuscle / termThe small constant tension in resting muscles
- AtrophyMuscle / termMuscle shrinking from not being used
- HypertrophyMuscle / termMuscle growing larger from use
- CrampMuscle / termA sudden painful tightening of a muscle
- SprainMuscle / termAn injury that stretches or tears a ligament
- StrainMuscle / termAn injury that stretches or tears a muscle or tendon
- Warm upMuscle / termGentle exercise before activity to prepare muscles
- ProteinMuscle / termA nutrient that helps build and repair muscle
- Fast-twitch fibersMuscle / termMuscle fibers that contract quickly for sprints
- Slow-twitch fibersMuscle / termMuscle fibers that work for a long time without tiring
- How many muscles do people have, about?Muscle / termMore than 600
- Which muscle in the body never rests?Muscle / termThe heart
- Neuromuscular junctionMuscle / termWhere a nerve meets a muscle to tell it to contract
- Extraocular musclesMuscle / termThe six muscles that move each eye
- SphincterMuscle / termA ring-shaped muscle that opens and closes an opening
- PeristalsisMuscle / termWaves of smooth muscle squeezing food along
- SarcomereMuscle / termThe basic contracting unit of a muscle fiber
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