Q1 Muscle contraction can be understood as the consequence of a process of transmission of action potentials from one neuron to another. A chemical called acetylcholine is the neurotransmitter released from the presynaptic neuron. As the postsynaptic cells on the muscle cell membrane receive the acetylcholine‚ the channels for the cations sodium and potassium are opened. These cations produce a net depolarization of the cell membrane and this electrical signal travels along the muscle fibers. Through
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Any of several small‚ often brightly colored earthly frogs that inhabit the rain forests of Central and South America and secrete from their skin some of the most poisonous biological toxins known‚ such as batrachotoxin. It is on the forest floor that the native South Americans find the jewel-like poison dart frog. The Choco’ tribe in Colombia‚ South America uses the skin secretions to poison their dart tips. One technique used to treat darts requires that a sharp stick to be forced into the
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Many have are on the edge of extinction. The Frog and Koala are just two of the endangered species. They have many similarities in the reason of their endangerment. These animals also have different reasons why they’re going extinct‚ but they both need the same thing saving. Here is some of their similarities. Frogs and koalas have one main reason that they’re going extinct. Humans. In addition‚ they’re both dying by farmers‚ however‚ the frogs have more trouble from farmers. They are both going
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1900’s Muscle Cars Introduction: How it all started from the beginning. The late 1900’s muscle cars and the great spike in 1900 muscle cars. I. Why are they so expensive? A. They have gone extinct B. They aren’t sold now in days C. There’s only a hand full of them left in the world II. How much would one cost to restore a 1900’s muscle car? A. Depends on how bad the car looks B. The model of the car C. If the parts of the car expensive to find III. Why do some late 1900’s muscle cars
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Your 10 Pounds of Muscle Plan Gaining 10 pounds of pure muscle is significant‚ and doing it in only four weeks isn’t exactly a long period of time to successfully achieve this goal. But don’t fool yourself: It is possible‚ as long as your commitment and consistency in the kitchen is as honest and intense as your effort in the gym. Will you gain ten pounds of dry muscle mass? Probably not but you can certainly gain up to ten pounds of lean muscle mass‚ which consists of dry muscle‚ glycogen and water
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the breakdown of damaged muscle tissues resulting in the release of muscle fiber contents into the bloodstream (Patel M.D.). This disease occurs when there is damage to the skeletal muscle. The breakdown products of damaged muscle cells‚ such as myoglobin‚ are harmful to the kidneys and frequently result in kidney damage or even kidney failure. The severity of the symptoms depends on the degree of muscle damage and the degree of the kidney damage‚ if any. The primary muscle damage can be caused by
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The Frog in the Hole — Devotional By Staff Very recently‚ Nathan (my 12 year old son) and I were in our back yard throwing Frisbee. He has gotten into Frisbee golf (disc golf) and was showing me some of the tosses he had learned. We were having a blast. During this fun time‚ Nathan walked over to a small sink-hole in the ground he had discovered a while back. The hole is about 5 inches in diameter and about 18 inches deep. Peering into the bottom of the hole‚ Nathan exclaimed‚ "The frog is still
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What is the Boiled Frog phenomenon? First of all this refers to killing a frog‚ if you throw a frog in a pot of boiling water the poor creature will fight and jump and claw to try and get out of the danger of dying. If with the same situation you ease the frog into warm water and turn the flame up slowly then the frog will not fight because it will not sense any immediate danger and it will ease into death (ezinearticles.com). This basically means that the frog senses no danger and is lulled into
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Factors Controlling Healthy Development Of Muscle And Bone. The food you eat affects every system and function in your body. A well-balanced diet ensures that your body has the raw materials to produce and maintain healthy‚ strong muscles and bones. On the other hand‚ poor dietary habits can produce deficiencies in vital nutrients‚ leading to poor bone and muscle development in children or the damaging of the body’s ability to maintain strong muscles and bones in adults. Protein It is a major
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Once upon a time‚ there lived a frog in Bingle Bog‚ who croaked all night long from the foot of a sumac tree‚ in his loud and unpleasant voice. All the creatures hated his “singing” but endured it as they had no other option. He was so stubborn and shameless that nothing from stones to insults to prayers could stop him from singing. One night‚ a nightingale came to the tree and sang in such a beautiful‚ melodious voice‚ that it left the frog and all the other creatures dumbstruck. The whole bog
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