Spinal Muscular Atrophy also known as SMA is a genetic disease affecting the part of the nervous system that controls the voluntary muscle movement. It can be passed down from parent to child. The major causes of SMA is a deficiency of a motor neuron protein called SMN. Mutation in the survival motor neuron gene 1. The symptoms of SMA are very sad a child is weak and has a delay in meeting feeding and breathing development milestones. There are four types of SMA‚ type 0 is the most severe it can
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A Review of Facial Nerve Anatomy Terence M. Myckatyn‚ M.D.1 and Susan E. Mackinnon‚ M.D.1 ABSTRACT An intimate knowledge of facial nerve anatomy is critical to avoid its inadvertent injury during rhytidectomy‚ parotidectomy‚ maxillofacial fracture reduction‚ and almost any surgery of the head and neck. Injury to the frontal and marginal mandibular branches of the facial nerve in particular can lead to obvious clinical deficits‚ and areas where these nerves are particularly susceptible to injury
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REVIEW SHEET EXERCISE 11 Blood Analysis NAME: LAB TIME/DATE: Hematocrit Determination 1. Hematocrit values are usually ( *higher / lower ) in healthy males‚ compared to healthy females. Give one possible explanation for this. 2. Living at high elevations will cause a person’s hematocrit to ( *increase / decrease ). Explain your answer. 3. Long-term athletic training will cause a person’s hematocrit to ( *increase / decrease ). 4. What is anemia? Condition where inadequate
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REVIEW SHEET EXERCISE 6 Cardiovascular Physiology NAME: LAB TIME/DATE: 1. Define each of the following terms: • autorhymicity- The heart is autorhythmic. This means it generates its own rhythmic action potential independent of the nervous system. • sinoatrial node- is the impulse-generating (pacemaker) tissue located in the right atrium of the heart‚ and thus the generator of normal sinus rhythm. • pacemaker cells- are specialized cells that cause involuntary muscles and tissues to
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KEY Review: Dorsal Body Cavity – Brain‚ Spinal cord Thoracic Cavity – Heart‚ Lungs‚ Bronchi‚ Trachea‚ Esophagus‚ Diaphragm Abdominopelvic Cavity – Liver‚ Stomach‚ Pancreas‚ Spleen‚ Small Intestine‚ Large Intestine‚ Rectum‚ Kidneys‚ Ureters‚ Bladder‚ Adrenal Glands‚ Descending Aorta (an artery)‚ Inferior Vena Cava (a vein) Umibilical Region: Stomach‚ Pancreas‚ Small Intestines‚ Aorta‚ Vena Cava‚ Spinal Cord Epigastric Region: Liver‚ Stomach‚ Aorta‚ Vena Cava‚ Spinal Cord Hypogastric
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Activity 1 1. Size and concentration of the solute 2. It was too large to pass‚ as predicted 3. I predicted that the glucose would diffuse since it is small enough but the albumin is much too large to pass through the membrane. The experiment produced this result. Activity 2 1. Neither way requires ATP but facilitated diffusion requires carrier protein molecules for diffusion to occur. 2. By increasing the number of carriers more glucose can pass at a time increasing the rate‚
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the brain and the spinal cord. Our brain is in control of many very important body functions and sensations like these for example: sleep‚ muscle movement‚ memory‚ sexual activity‚ emotions‚ hunger and thirst. Our spinal cord extends several types of nerve fibers from the brain acts like a switching and relay terminal for the peripheral nervous system as is stated in Mosby’s Dictionary. The 12 pairs of cranial nerves emerge directly from the brain Sensory nerves and motor nerves of the peripheral
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Exercise 3: Neurophysiology of Nerve Impulses: Activity 3: The Action Potential: Threshold Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly. 1. Axons are You correctly answered: d. long‚ thin structures that extend from a neuronal cell body. 2. Which of the following is easier? Your answer : b. intracellular recordings of the action potential Correct answer: a. extracellular recordings of the action potential 3. An action potential is usually initiated in
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EXERCISE 3: Neurophysiology of Nerve Impulses ACTIVITY 1: The Resting Membrane Potential Answers 1. The nervous system contains two general types of cells: neuroglia cells and a. nerves. b. cell bodies. c. neurons. d. nephrons. 2. The resting membrane potential of the neuron in this lab under the control conditions was _______ mV. 3. True or False: For most neurons‚ the concentration of Na+ and K+ ions inside and outside the cell are the primary factors that determine the resting membrane
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The vagus nerve is the tenth of the twelve brain nerves. The vagus nerve contributes to the feelings associated with infections such as appetite‚ fatigue and induction of disease behavior. It extends from the brainstem to the abdomen‚ with branches in the neck‚ thorax and abdomen 68. The vagus nerve is part of the autonomic nervous system‚ has efferent fibers‚ ascending signals from the brain to the peripheral organs‚ as well as afferent sensory fibers‚ and transmits information from the peripheral
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