and onnervateds it Motor unit is a single axon and all the muscle fibers it innervates Short distance from terminal of axon and muscle fiber‚ d/t aCH dumped into synaptic cleft and bind to receptors on skeletal muscle‚ when Ach withdrawn muscle relaxes Nerve impulse down axon‚ when hits the exon terminus it causes a voltage gated Ca channel to open‚ wave of depolarization causes Ca to come into cell (Ca tells cells to do what it does best) and axon terminus releases it’s neurotransmitters. (ACH)
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Organization of Muscle Tissue Laszlo Vass‚ Ed.D. Version 42-0016-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Purpose:
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Sample Physiology MCQs 1. Compound action potentials can be graded responses. True 2. The sciatic nerve contains axons of both afferent and efferent neurones. True 3. The absolute refractory period of an action potential is the period after an initial stimulus when it is impossible to evoke another action potential with a second stimulus. True 4. The refractory periods of individual axons are important as they dictate the maximal action potential firing rate of a neuron. True 5. Compound action potentials
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ESSAY ‘The structure and importance of the plasma membrane found within and around all cells’ The plasma membrane surrounds all eukaryotic and prokaryotic cells. Eukaryotic cells have membrane bounded organelles whereas prokaryotic cells do not. The plasma membrane forms the boundary between the cell cytoplasm and the environment. Its function are to allow different environments to be established inside and outside the cell. It also controls the movement of substances into and out of the cell.
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The Function of the Human Eye Inarguably‚ the human eye is one of the most complex human organs in the body. The eye aids in almost every activity that people participate in (excluding pin the tail on the donkey). Scientists can only guess at the probability in evolution of the eye being formed; there are so many variables that a close number would be incalculable. The eye is an extraordinary part of the human body; most people agree that is the most important sensory organ. The eye sends messages
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in the skin and muscle weakness. This may cause the person with leprosy to lose an extremity affected by the disease. B: Schwann cells are involved in many important aspects of peripheral nerve biology. The conduction of nervous impulses along axons‚ nerve development and regeneration‚ trophic support for neurons‚ production of the nerve extracellular matrix‚ modulation of neuromuscular synaptic activity‚ and presentation of antigens. The nerve impulses
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Task – CYPOP 1 Work with babies and young children to promote their development and learning Task 1 An explanation of the potential effects on development of babies and young children of the following experiences. All babies and young children can show different rates of development. It is often linked to experiences during conception‚ pregnancy and childbirth. pre-conceptual Lifestyle of parents can have effect on child’s potential development and this is because men’s sperm and women’s ova
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glomeruli and from it 2nd order nerves then pass posteriorly into olfactory tract. The olfactory tract runs inferiorly to frontal lobe and as tract reaches anterior perforated substances it divides into medial (carry axon across the medialplane of anterior commisure ) and lateral stria ( carries axon to olfactory area of cortex ) PALSY : Anosmia is defined as absence of sense of smell .it can be temporary ‚ permanent‚ progressive or congenital OPTIC NERVE ORIGIN : retina of
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"When a person glimpses the face of a famous actor‚ sniffs a favourite food or hears the voice of a friend‚ recognition is instant. Within a fraction of a second after the eyes‚ nose‚ ears‚ tongue or skin is stimulated‚ one knows the object is familiar and whether it is desirable or dangerous. How does such recognition‚ which psychologists call preattentive perception‚ happen so accurately and quickly‚ even when the stimuli are complex and the context in which they arise varies? Much is known about
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BIOLOGY Are eyes enough to enjoy this natural splendour ...? Didn’t you notice the picture drawn by Raju and its caption? What is your opinion about the caption? You too might have got the opportunity to enjoy such scenes from nature. What have your blissful experiences in such situations been? — — — — — Colourful scenes The chirping of birds The gentle pat of the breeze The intoxicating fragrance of flowers The honey-sweetness of mango 7 BIOLOGY Though these are different experiences
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