body. The human heart pumps blood through veins‚ arteries‚ and capillaries all the time in order to stay alive. A heart attack occurs when cells in the heart cannot receive enough oxygen because not enough blood is being circulated. The more time that passes without proper treatment in order to restore the flow of blood‚ the greater the risk a person has of damaging their heart and of dying. Atherosclerosis is the hardening and narrowing of the arteries and it is usually the cause of heart attacks
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contact with tissues • Returns to heart via open veins • No control 3 Circulation in vertebrates 4 Double circulation • Blood moves through heart 2x during a circuit – Lungs – Body – Low pressure from lungs‚ • Birds • Warm blooded creatures • High metabolic rate – Requires good oxygen supply → aerobic respiration • 5 Human cardiovascular system • Human cardiovascular system blood flows • Muscular heart → arteries → smaller aterioles → arterioles → capillaries
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8546d_fm_i-iv 6/26/02 3:51 PM Page 1 mac62 mac62:1253_GE: CAT DISSECTION A LABORATORY GUIDE 8546d_fm_i-iv 6/26/02 3:51 PM Page 2 mac62 mac62:1253_GE: 8546d_fm_i-iv 6/26/02 3:51 PM Page 3 mac62 mac62:1253_GE: CAT DISSECTION A LABORATORY GUIDE CONNIE ALLEN VALERIE HARPER Edison Community College John Wiley & Sons‚ Inc. 8546d_fm_i-iv 6/26/02 12:17 PM Page 4 mac62 mac62:1253_GE: Senior Editor Associate Editor Production Editor Senior Marketing
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report on my findings. Before we get started on our journey‚ I would like for you to meet Ms. Dazzle my mini-submarine. Our route from here will be to enter the body by injection into the right femoral vein‚ which is located in the upper thigh and pelvic region of the body and runs close to the femoral artery (Tamburlin & Severin‚ 2011). Once inside the body‚ we are to continue on a path that can lead us to the infected area. During my journey I will be able to provide you with specific information that
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ascending aorta 8. aortic arch 9. brachiocephalic artery 10. left common carotid artery 11. left subclavian artery 12. pulmonary trunk 13. right pulmonary artery 14. left pulmonary artery 15. ligamentum arteriosum 16. right pulmonary veins 17. left pulmonary veins 18. right coronary artery 19. anterior cardiac vein t s w x v 20. left coronary artery 21. circumflex artery 22. anterior interventricular artery 23. apex of heart 24. great cardiac vein d e f g h s t p q r l i u j v w k m e
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SCALP Layers:- * (S) Skin:- * Contains hair follicles which makes it hairy. * Has numerous sebaceous glands. * (C) Superficial fascia * Connects skin to the epicranial aponeurosis. * Provides an easy passage for blood vessels. * This layer is fibrous and dense in the middle and thin at the periphery. * Swelling in this part is not profuse but very painful. * Injury to the head till this layer causes profuse bleeding which can be stopped by
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THE FACIAL PART OF THE HEAD OPERATIONS ON THE HEAD The border between the head and neck is the line which is drawn along the inferior margin of the mandible‚ apex of the mastoid process‚ superior nuchal line to the external occipital protuberance and passes on to another side. The facial part is composed of the following regions: the orbital region‚ the oral cavity region (the region of the mouth)‚ nose region (region of the nose)‚ the lateral region and deep region of the face. You studied
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heart. Right and left ventricles 2 inferior chambers pump blood into arteries AV valves Ensure one-way blood flow Atrioventricular (AV) valves tricuspid valve - between right atrium & ventricle mitral or bicuspid valve - between left atrium & ventricle Chordae tendineae (cords) connect AV valves to papillary muscles on the floor of ventricles Semilunar valves pulmonary - at ))))))))) to pulmonary artery aortic - at entrance to aorta HEART IS CONE SHAPED AND IN THE MEDIASTINUM
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Organisation of the human body. Jade Roberts. Barbara. P1‚ P2 AND P3. Health and Social Care level 3. 1 In this booklet I will be explaining what the main components and functions are of the cells. I will also be outlining the structure of the main tissues in the body and the gross structure of all the body systems. 2 The components and functions of cells. Cell membrane All organisms have something in common‚ they all have a cell membrane. The cell membrane is a barrier that separates a cell
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mphibiaAmphibia Digestive System: 1. The digestive system of frog is mainly includes the food catching organs‚ the alimentary canal and the digestive glands. 2. In the alimentary canal the processes of mastication‚ digestion and absorption take place‚ while the digestive glands secrete certain enzymes which bring about the digestion of the ingested food. Alimentary canal: 1. The alimentary canal of the frog is essentially a colied tube of varyihng diameter that extends from one of
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