《医学专业英语》配套PPT电子课件
医学专业英语配套PPT电子课件,医学专业英语,医学专业,英语,配套,PPT,电子,课件
Human Body Chapter 1 Human Body In this passage you will learn:Classification of organ system Structure and function of each organ system Associated medical terms Ten systems:Skeletal system Muscular systemCirculatory system Respiratory systemDigestive system Urinary systemEndocrine system Nervous systemReproductive system Skin Ten systems:Ten systems:Skeletal systemMade of:bones,joints and cartilageFunction:to provide support and protectionfor the soft tissues andthe organs of the body and to provide points ofattachment for themuscles that moves the bodyJoints:make the bones join together 1.no movement 2.permit movement in the skull in shoulder,hip jointsCartilage-a more flexible material than bone.Function-It serves as a protective,cushioning layer where bones come together.It also connects the ribs to the breastbone and provides a structural base for the nose and the external ear.Muscular systemMade of-striated muscle,heart muscles,smooth musclesFunction:allows the body move,and its contractions produce heat,which helps maintain a constant body temperature Circulatory systemMade of:heart blood vessels blood Circulatory Systems Function All parts of the body must have nourishment and oxygen in order to function and grow,and their waste products must be removed before they accumulate and poison the body.The circulatory system distributes needed ones.The BloodThe blood-is also Part of the bodysDefense system.It has antibodiesand white blood cells that protect the body against foreign invaders.The Heart The heart-a muscle that is divided into two nearlyidentical halves:one halfreceives blood from thelungs and sends it to the rest of the body,the otherhalf sends blood that hastraveled through the bodyback to the lungs.When the heart muscle contracts,the blood is forced out intoarteries and enters smallcapillaries.Blood returns to the heart through veins.Lymphatic system Lymph-returns to the heart by way of another system of channels-the lymph vessels.Lymph nodes along these vessels filter the fluid before it reenters the blood.The spleen is a large lymphatic organ that filters the blood.Respiratory systemFunction:1.takes in oxygen 2.expels carbon dioxide and water vapor.air the nose and month larynx trachea two lungs small air space Digestive systemDigestive system-consists of a tube extending from the mouth to the anus.Digestive systemFunction -food and fluids are take in,moved through the body,and broken down into small molecules that are absorbed into the circulatory system.Food -mouth esophagus stomach small intestine large intestine anusUrinary systemFunction:-maintains normal levels of water andof certain small molecules such assodium andpotassium in the body.Endocrine system Hormones:are produced by a variety of endocrine glands,which release the hormones directly into the blood stream.Pituitary:is located under the brain in the middle of the head.Endocrine system Thyroid:controls the rate of the bodys metabolism.Adrenal gland:produces cortisone and adrenaline.Pancreas:produces digestive enzymes,insulin and glucagon,which control the bodys use of sugar and starches.Nervous system Made of-the brain the spinal cord the nerves which control body activitiesReproductive SystemMale reproductive system-produce,transport and maintain viable sperm produce the male sex hormone,testosterone,which regulates the development of a beard,pubic hair,a deep voice and other bodily characteristics of the adult male Reproductive systemFemales productive system:produce transport ova eliminate ova from the body nourish and provide a place for growth of an embryo nourish a newborn child.produce the female sex hormones,estrogen and progesteroneMale Female a complete layer protects the inner structures of the body the largest of the bodys organs.SkinFunction:keeps out foreign substances and prevents excessive water evaporation.The nerves in the skin provide tactile information.The skin also helps keep the bodys temperature close to 37 Skin
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《医学专业英语》配套PPT电子课件,医学专业英语,医学专业,英语,配套,PPT,电子,课件
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