EXERCISE 3: Neurophysiology of Nerve Impulses |ACTIVITY 1: The Resting Membrane Potential |Answers | |The nervous system contains two general types of cells: neuroglia cells and |C- Neurons | |nerves. |
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a false truth to the word nerve. The courage it takes to have nerve is powerful‚ but having nerves is a weakness. A soldier in a battle needs confidence‚ and not worry or otherwise every action will be filled with doubt. The commander says‚ “No nerves‚ just have nerve out there.” The difference between the same word emphasizes the actual meaning of each word‚ creating it to be more heroic than a hero and braver than just the brave. One of the many definitions for nerve is “a person’s steadiness
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Biology 315. Anatomy and Physiology I. Chapter 14. The Brain and Cranial Nerves. Tortora and Grabowski‚ 13th edition. 2012. I. Brain Organization‚ Protection‚ and Nourishment. A. Major Parts of the Brain: brain stem‚ cerebellum‚ diencephalon‚ and cerebrum B. Blood Flow Through the Brain.: substantial; 20% cardiac output at rest; Lack of blood flow > a couple of minutes = permanent damage. Glucose supply must be constant (Sx of hyper/hypoglycemia) 1. Arterial supply
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Review Guide Chapters 13-17 Chapter 13 – True or False 1. The nervous system consists of the brain‚ spinal cord‚ and nerves. 2. The afferent nervous system consists of all outgoing motor pathways. 4. Ependymal cells engulf and destroy microbes and cellular debris in inflamed or degenerating brain tissue. 5. Oligodendrocytes form myelin sheaths around nerve fibers in the CNS. 6. Nerve fibers with many Schwann cells forming a thick myelin sheath are called myelinated fibers‚ or gray fibers. 8. Most
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term "myotome" is also used to describe the muscles served by a single nerve root. It is the motor equivalent of a dermatome. Each muscle in the body is supplied by a one or more levels or segments of the spinal cord and by their corresponding spinal nerves.Myotomes & Dermatomes dermatome map - Apparelyzed www.apparelyzed.com/myo-dermatomes.html Myotomes and dermatome charts & maps describe the relationship between spinal nerve ... Dermatome is a Greek word which literally means "skin cutting".
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1. (5 pts) Describe the metabolic process providing your energy while you were walking (at an easy pace) before the bee stung you. Include which molecules are being consumed. The metabolic process providing my energy while I was walking at an easy pace is aerobic metabolism. During aerobic metabolism‚ mitochondria absorb from the surrounding cytoplasm these molecules: ADP‚ phosphate ions‚ O2‚ and organic substances like pyruvate. These molecules go through the citric acid cycle. The electron
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main factor that leads to the damage of optic nerve is elevated pressure in the eye. The optic nerve is the main visual nerve of the eye. It transmits the images we see back to the brain for interpretation. The shape and tone of the eye is maintained by a pressure within the eye‚ which ranges between 8 mm and 22 mm of mercury. When this pressure is too low‚ the eye becomes softer‚ while an elevated pressure causes the eye to become harder. The optic nerve is the most susceptible part of the eye to high
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Nerve and neuron sound similar to most people‚ but they are two different components of the body (Martini‚ 375). Nerves are found only in the peripheral nervous system‚ while neurons are found in the brain‚ spinal cord‚ and peripheral nerve (Martini‚ 375). Neurons are nerves cells that are specialized for intercellular communication (Martini‚ 375). A neuron is composed of a cell body‚ dendrites and axon (Marieb‚ 376). A nerve is a bundle of axons or dendrites that is wrapped in connective tissues
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Neurophysiology has been a subject of study since as early as 4‚000 B.C. In the early B.C. years‚ most studies were of different natural sedatives like alcohol and poppy plants. In 1700 B.C.‚ the Edwin Smith surgical papyrus was written. This papyrus was crucial in understanding how the ancient Egyptians understood the nervous system. This papyrus looked at different case studies about injuries to different parts of the body‚ most notably the head. Beginning around 460 B.C.‚ Hippocrates began
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Spring 2014 Using the Figure‚ match the following: 1) Innervates the superior oblique muscle. 2) Longest cranial nerve. 3) Damage to this nerve would cause dizziness‚ nausea‚ and loss of balance. 4) Involved in movement of the digestive tract. 5) Damage to this nerve would cause difficulty in speech and swallowing‚ but no effect on visceral organs. 6) Damage to this nerve would keep the eye from rotating inferolaterally. Using the Figure‚ identify the following components of the reflex arc:
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