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Q. What is the neuromuscular synapse?
Neuromuscular synapse is the structure through which the neural impulse passes from the axon of a motor neuron to the muscle cell. This structure is also called as neuromuscular junction or motor end plate. As in the nervous synapse the axonal terminal membrane releases the neurotransmitter acetylcholine in the cleft between the two cells. Acetylcholine binds to specific receptors of the muscle membrane dependent sodium channels then depolarization and the open of the muscle membrane begins and the impulse is then transmitted to the sarcoplasmic reticulum that releases calcium ions into the sarcomeres of the myofibrils thus triggering contraction.
The next step in the nitrogen cycle is the assimilation of inorganic nitrogen in the type of ammonia into organic nitrogen-having compounds. Total organisms assimilate ammonia by
Q Sponge identity card. How are sponges characterized according to example of representing beings, basic morphology, type of symmetry, embryonic (germ) layers and coelom, digestive
Explain the inferior dental nerve The inferior dental nerve in some cases may divide into two or three rami that occupy separate canals as the nerve travels in the mandible to
CELL MEMBRANE As discrete units of life all living cells are separated from each other and from their external environment by an extremely delicate (75 A to 100 a= 0.00075 to
Full Description about microfilament
The original DNA sequence when ,transcribed and translated would yield five successive valine residues. But the altered sequence would correspondingly read one aspartate and four s
Reproductive Cycle The whole reproductive cycle consists of an ovarian cycle and a uterine cycle. Figure illustrates one complete reproductive cycle. You can observe in the fi
Amphibian frog embryo
Why can mitochondria be considered the power plants of the aerobic cells? Ans) Mitochondria are the "power plants" of aerobic cells due to within them the final stages of the ce
Define the intracellular cyclic AMP Healthy Person P takes a drug that makes a strong effect on the epithelial cells of the kidney collecting duct within one hour and lasts fo
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