self generated impulse. ------------------------------------------------- Structure The human heart has a mass of between 250 and 350 grams and is about the size of a large fist.[12] It is enclosed in a double-walled protective sac called the pericardium. The superficial part of this sac is called the parietal pericardium. The inner pericardium layer is called the visceral pericardium. Together they are usually called the serous pericardium because they contain the pericardial fluid. Outside the parietal pericardium
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diaphragm and the back of the sternum (breastbone). The inner coat is double with one layer closely adherent to the heart while the other lines the inner surface of the outer coat with the intervening space being filled with fluid. There is a superficial part of the sac and is called the Fibrous Pericardium. It protects the heart and anchors its surrounding structures‚ and prevents overfilling of the heart with blood. The hearts outer wall of the human heart is composed of three layers. The first
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HEENT/Respiratory Examination 22-year-old female presents for physical with no chief complaint or concerns. Subjective: HEAD‚ FACE‚ NECK: Patient denies any headaches‚ head injury‚ dizziness‚ neck pain‚ lumps or swelling. No history of head or neck injury or surgery. EYES: Patient denies any problems associated with vision‚ does not wear any form of corrective lenses but does not remember her last vision test. Patient denies any pain‚ redness/swelling‚ watering/discharge‚ or allergies
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sorts—it offers a cure‚ the prerequisites of which are a return to our origins which can never be divorced from the soil. As a contemporary poet‚ Snyder recognizes the one-way departure man risks to take from the earth in search of artificial and superficial things. His project seems to be to reacquaint readers with the splendor of that which existed before—and will exist long after—them‚ to reorient themselves in the world as natives‚ rather than aliens. His poem‚ “Wave”‚ is a meditation on energy
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cells b) Cells can change shape c) Cytoplasm contains haemoglobin d) Nucleus is centrally located e) All of the above 5. Macrophages are derived from: a) Neutrophils b) Lymphocytes c) Monocytes d) Basophils e) Eosinophils 6. Blood in the pulmonary veins returns to the: a) Right atrium b) Left atrium c) Right ventricle d) Left ventricle Date Course Title Course Code May 2012 Fundamental Biology and Physiology BIOL1002 Page 2 of 11 APPROVED 7. Contraction of the ventricles is referred to as ventricular:
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people‚ and are discontented when we work to the top. For the most part‚ we are unhappy people. Even in times when we are in a good mood‚ we are working to achieve some goal that we believe will make us happier. Through sadness‚ success‚ serenity‚ superficial sorrow‚ and surrendering‚ men shall always stay unhappy. In result‚ we are constantly in an innate state of great confusion. We feel that the way other men act is stupid‚ rash‚ unjust‚ shallow‚ and disdainful‚ and yet‚ we act the same way to our
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do you find superficial lymphatic vessels? Skin Mucous membranes Serous membranes lining body cavities Deep lymph vessels are larger and accompany deep artieries and viens Both the superficial and deep lymphatic vessels join to form lymphatic trunks which empty into 2 main collecting vessels: Thoracic duct—collects form rest of body and empties into L Subclavian vein Right lymphatic duct—collects from right upper arm‚ right side of head and thorax. Empties into R Subclavian vein Lymph Transport
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system. The tissue fluid flows into our venous blood stream through specific veins which are located near our collar bones. Then‚ after delivering nutrients the plasma leaves the cells with debris. Most of the tissue fluid will then return to the venous circulation and continues as venous blood. Lymph leaves the tissue and enters the lymphatic system through lymphatic capillaries. ¾ of these capillaries are superficial and are located near the skins surface. There are even deep lymphatic capillaries
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the size of a fist‚ within the mediastinum and tilts toward the left side of the body√ 2. Name the coverings of the heart. • Pericardium – doubled-walled sac that encloses the heart. • Fibrous Pericardium – superficial part of pericardium‚ protects‚ anchors and prevents the heart from overfilling • Serous Pericardium – deep to the fibrous pericardium‚ a thin‚ slippery‚ two-layer serous membrane that forms a closed sac around the heart.
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The brachial plexus is a somatic nerve plexus formed by intercommunications among the ventral rami (roots) of the lower 4 cervical nerves (C5-C8) and the first thoracic nerve (T1). It lies partly in the neck and partly in the axilla. It is responsible for the motor innervation of all of the muscles of the upper extremity‚ with the exception of the trapezius and levator scapula. The brachial plexus supplies all of the cutaneous innervation of the upper limb‚ except for the area of the axilla (which
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