Why do muscles contract and relaxes rapidly?

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This is the sliding filament mechanism for muscle contraction, ... An entire muscle contracts when many of its muscle cells ... the muscle relaxes and returns to its ... - Read more

This means that as one muscle contracts, its partner relaxes. ... When muscles need to get energy from glucose they do this by changing the glucose into other ... - Read more

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Why do muscles contract and relaxes rapidly? resources

cyhsanatomy1 - Why Do We Need Muscles?

Why DO we need muscles anyway? ... These muscles involuntarily contracts, ... Striated muscle contracts and relaxes in short, ...

cyhsanatomy1 - How do Muscles Produce Movement?

When they reach this spot the signals close an electric pathway and tell to muscle to expand or contract. Why do we ... extends or relaxes. The muscle that contracts ...

Bones and Muscle Quiz flashcards | Quizlet

Shivering occurs when your muscles rapidly contract and relax. ... why do infants have more bones than adults ... relaxes. While one muscle contracts, ...

Muscular system. Types of muscle - Human anatomy. Human ...

The muscle contracts and relaxes slowly and can ... The nervous system stimulates skeletal muscle to contract, and the tissue usually contracts and relaxes rapidly.

How Do Muscles Work? | eHow

How Do Muscles Work?. ... The only thing an individual muscle can do is contract in a single direction. ... Muscle Twitches in the Leg. ... Why Do I Have Involuntary ...

Why Leg Raises Contribute to Back Pain - CBN.com - The ...

... but lying or hanging leg raises are probably one of the worst exercises you can do. Why ... of how muscles contract to ... do there leg raises within ...

SHOW MORE ....

Muscles - Scribd

Muscles are what enable you to do just ... powerfully but fatigue very rapidly. Types of muscle All muscles ... muscle contracts and relaxes in ...

Why do muscles need to work in pairs? | Answerbag

Why do muscles need to work in pairs? ... As one muscles contracts (becomes ... the agonist and the tricep brachii relaxes and lengthens which makes ...

Muscle tissue - Wikipedia, the free encyclopedia

Muscle tissue is a soft tissue that composes ... Striated muscle contracts and relaxes in ... The smooth muscle fibres taper at both ends and do not show ...

Bones, Muscles, and Joints - KidsHealth

Our bones, muscles, ... Smooth muscles take longer to contract than skeletal muscles do, ... Then the biceps relaxes and the triceps contracts to straighten the elbow.

Health, Fitness and Diet - Home

... FITNESS AND DIET ... Striated muscle contracts and relaxes in short ... Fast twitch fibers contract quickly and powerfully but fatigue very rapidly, ...

BBC Science & Nature - Human Body and Mind - Muscles Layer

Find out why muscles always come in pairs. ... When one muscle of a pair contracts, the other relaxes. ... To do this, your triceps muscle, ...

How do Bones and Muscles Work Together? - Wikispaces

How do Bones and Muscles Work Together? ... One muscle contracts while the other muscle relaxes. How do muscles move your bones?

How Magnesium Widens Blood Vessels (And Why This Matters ...

How Magnesium Widens Blood Vessels (And Why This ... To understand why magnesium relaxes muscles, ... The smooth muscle of the Tunica Media contracts and relaxes ...

Video: Why Do I Jump in My Sleep? | eHow

Why Do I Jump in My Sleep?. ... One is that the body relaxes way too quickly and ... the brain does feel that so it gets the muscles to contract very quickly and ...

BBC Science & Nature - Human Body and Mind - Muscles Layer

... which means you consciously control what they do. ... Muscles in your bladder wall contract to expel urine from your ... and relaxes to fill your heart with ...

How Your Lungs Work - Montana State University

Your lungs are complex organs, but what they do is take ... cause the lungs to fail. We will also explain why you can't ... and intercostal muscles to contract and ...

AnswerParty | Why do the muscles of the uterus contract ...

Why do the muscles of the uterus contract when you're on your period? ... These trigger the muscles of the uterus to contract and squeeze the lining out.

Fun Muscle Facts for Kids - Interesting Information about ...

Muscle Facts for Kids. ... How many muscles do we have? ... as one muscle contracts the other relaxes which moves the bones.

KEY CONCEPT The muscular system makes movement possible.

cles do more than produce movement. ... muscle relaxes tendon muscle contracts ... because their cells reproduce more rapidly in response to the

Homework muscle Questions - Anna's Anatomy Website

Why is oxygen necessary for muscle ... How does muscle continue to contract in the ... Contraction characteristics- Contracts and relaxes relatively rapidly

Flashcards - BIOL 2160 Final Exam - When a muscle ...

... cardiac muscle, contracts and relaxes to cause heartbeat ... Action potentials travel rapidly through the conduction system to ... expiratory muscles contract) ...

Why Leg Raises Contribute to Back Pain - SelfGrowth.com

Why Leg Raises Contribute to Back Pain; ... of how muscles contract to ... they do? If they say, lying or hanging leg raises or some other type ...

Bones, Muscles, and Joints - KidsHealth

Muscles and What They Do. Bones don't ... Smooth muscles take longer to contract than skeletal muscles do, ... the flexor relaxes and the extensor contracts to ...