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Introduction to the cardiovascular system and the human heart

Introduction to the cardiovascular system and the human heart

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  • thoracic cavity - The closed, partially membrane-lined sterile anatomical space, a subdivision of the ventral body cavity, which houses the lungs, heart, and the organs of the mediastinum; its linings are the three serous membranes known as the pleural membranes and the pericardial membrane; it is located medially on the anterior of the trunk and housed within the confines of the rib cage; it provides a protected space for those organs.pleural cavity - The two closed, membrane-lined sterile anatomical spaces, subdivisions of the ventral body cavity and of the thoracic cavity, which houses the right and left lungs respectively; its lining is the serous membrane known as the pleural membrane; it is located lateral to the mediastinum and pericardial sac on the anterior of the trunk and housed within the confines of the rib cage; it provides a protected space for the lungs.pericardial cavity - The closed, membrane-lined sterile anatomical space, a subdivision of the ventral body cavity and of the thoracic cavity, which houses the heart; its lining is the serous membrane known as the pericardial membrane; it is located within the inferior portion of the mediastinum on the anterior of the trunk and beneath the sternum within the confines of the rib cage; it provides a protected, lubricated space for the heart to contract.mediastinum - The closed sterile anatomical space, not lined by a serous membrane, a subdivision of the ventral body cavity and of the thoracic cavity, which houses the heart in its pericardial sac, the great vessels, the trachea, the esophagus, and the thymus; it is located medially between the two pleural cavities to the right and left and between the thoracic vertebral column and the sternum.

Transcript

  • 1. The Cardiovascular System Human Heart Image - http://www.thewellingtoncardiacservices.com/the-heart-cardiovascular-system.asp
  • 2. Cardiovascular System • Cardio = pertaining to the heart • Vascular = pertaining to a transport system –Blood vessels http://www.istockphoto.com/stock-photo-6155504-cardiovascular-system.php
  • 3. Cardiovascular System Functions Transportation Homeostasis
  • 4. Circulatory Pathways • Pulmonary Circulation • Systemic Circulation • Examples: –Renal Circulation –Hepatic Portal System –Coronary Circulation
  • 5. Functions of the Heart • Center of the cardiovascular system, the heart = pump • Connects to blood vessels that transport blood between the heart and other body tissues. • Arteries and veins entering and leaving the heart are called the great vessels. http://www.fallingpixel.com/human-heart-3d-model/11334
  • 6. Functions of the Heart • Ensures the unidirectional flow of blood through both the heart and the blood vessels. • Acts like two independent, side-by-side pumps that work independently but at the same rate. • Develops blood pressure through alternate cycles of heart wall contraction and relaxation. Yale University - School of medicine
  • 7. Location of the Heart • Major body cavities • Thoracic cavity http://wellnessadvocate.com/?dgl=10463
  • 8. http://apbrwww5.apsu.edu/thompsonj/Anatomy%20&%20Physiology/2010/2010%20Exam%20Rev iews/Exam%201%20Review/Fig%201.9%20%20The%20Body%20Cavities.htm
  • 9. Figure 12.2a
  • 10. Pericardium • Pericardium – aka. Pericardial sac – Fluid filled sac that surrounds the heart and proximal ends of the great vessels http://www.cardiac-risk-assessment.com/heart-information/your-pericardium
  • 11. http://academic.amc.edu/martino/grossanatomy/site/NURSES/ TUTORIALS/Heart/Pericardium.htm