on to the olfactory nerve. This nerve enters the brain and will cause the subject to understand the odor to be hamburger‚ of which he wants to eat. The brain then makes the decision to move forward with eating the hamburger. The brain must tell the hand to reach out and grab the burger to bring it to the mouth. It does so by sending an impulse down the spinal nerve until it branches off on to the arm nerves‚ which include the radial‚ ulnar‚ and median nerve. These three nerves in conjunction will
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Homeostasis Homeostasis Is a technical term for the process of maintain a constant internal environment despite external changes. The internal environment‚ compromises; blood‚ tissue fluid‚ body cell contents and all the metabolic processes taking place. Constant in this instance is not absolute or fixed it is much more flexible and dynamic as it refers to the physical and chemical composition being kept within a limited range or variables for maximum efficiency‚ well-being of the whole body and
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vagina‚ womb (uterus)‚ fallopian tubes and ovaries The Nervous System What is it The nervous system is the body’s main control system. It is made up of the Central Nervous System (or CNS) and a network of nerves that extend from the CNS to all parts of the body. The nervous system regulates both voluntary activities‚ such as walking and talking‚ and involuntary activities‚ such as breathing‚ which you make no conscious decisions about. The CNS has two main
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Connective Epithelial‚ and muscular tissues. From Tissues to organs Cells combine to form tissues and tissues combine to form organs. Cells combine to form four primary tissues: - Epithelial tissue - Connective tissue - Muscle tissue - Nerve tissue BACKGROUND:A tissue is a group of cells that have a similar shape and function. Different types of tissues can be found in different organs. In humans‚ there are four basic types of tissue: epithelial‚ connective‚ muscular‚ and nervous
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The article “The Shaking Women or A History of My Nerves” is an intriguing piece to read as it captures the idea of what it’s like struggling with an unknown disorder. The author‚ Siri Hustvedt‚ provides readers with a vision of her journey through the search of a diagnosis for her mysterious‚ shaking episodes. While on her journey‚ the author provides readers with an insight on various theoretical paradigms‚ historical views of abnormal behaviours and disorders as well as personal experiences living
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structures that would’ve been reattached would be the humerus bone. Additionally‚ the muscles that would’ve been reattached are biceps brachii‚ brachialis‚ triceps‚ and the coracobrachialis. The nerves that would’ve been fixed would be the median‚ ulnar‚ radial‚ musculocutaneous‚ and the antibrachial cultaneous nerves. The brachial‚ superior and inferior collateral‚ profunda brachii arteries would have to be reattached‚ along with several smaller veins. 3. The system that was most likely not reattached
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stimulated muscle which is higher than the threshold voltage for the directly stimulated nerve‚ 10 mV. The direct stimulation of the muscle required a higher voltage in order to get a contraction. This most likely occurs for two reasons. First is the fact that once a nerve reaches its threshold voltage‚ it perpetuates the action potential down the nerve to the muscle. This brings us to the second reason‚ the nerve branches out and reaches many thousand parts of the muscle‚ which all get depolarized
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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
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1. Why did Allen’s heart rate and blood pressure fall in this time of emergency (i.e. at a time when you’d expect just the opposite homeostatic response)? Pg. 969 This occurred because Allen’s spinal cord has decreased perfusion due to damage‚ and a broken vertebral bone. Also‚ there has been a disruptions of the sympathetic fibers of his autonomic nervous system therefore it can no longer stimulate the heart. Allen likely has spinal shock. 2. Upon admission to the hospital‚ Allen’s breathing
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Outline The human cerebrum controls every substantial capacity and translates data from the body’s environment. Knowledge‚ imagination‚ feeling‚ and memory are a couple of more things administered by the cerebrum. Secured by the skull‚ the mind is made of parts called the cerebrum‚ cerebellum‚ and brainstem. The brainstem goes about as a hand-off focus interfacing the cerebrum and cerebellum to the spinal string. The cerebrum gets data through the five detects: locate‚ notice‚ touch‚ taste‚ and
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