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The human heart is located within the thoracic cavity, medially between the lungs in the space known as the mediastinum. Figure 19.2 shows the position of the heart within the thoracic cavity. Within the mediastinum, the heart is separated from the other mediastinal structures by a tough membrane known as the pericardium, or pericardial sac ...
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1. protects heart. 2. anchors it to surrounding structures. 3. prevents overfilling of the heart with blood. pericarditis. inflammation of the pericardium (pathogens in it) epicardium. fused visceral pericardium and outer myocardium. Myocardium. heart muscles made of cardiac tissue.
Chapter 28: At Quizlet, we’re giving you the tools you need to take on any subject without having to carry around solutions manuals or printing out PDFs! Now, with expert-verified solutions from Anatomy and Physiology 2nd Edition, you’ll learn how to solve your toughest homework problems. Our resource for Anatomy and Physiology includes ...
19.1 Heart Anatomy. The heart resides within the pericardial sac and is located in the mediastinal space within the thoracic cavity. The pericardial sac consists of two fused layers: an outer fibrous capsule and an inner parietal pericardium lined with a serous membrane. Between the pericardial sac and the heart is the pericardial cavity, which ...
thickest layer of the heart composed of cardiac muscle cells built upon a framework of primarily collagenous fibers and blood vessels that supply it and the nervous fibers that help to regulate it. papillary muscle. extension of the myocardium in the ventricles to which the chordae tendineae attach. pectinate muscles.
There are eight bones that form the brain case. These are the paired parietal and temporal bones, plus the unpaired frontal, occipital, sphenoid, and ethmoid bones. The facial bones support the facial structures, and form the upper and lower jaws, nasal cavity, nasal septum, and orbit. There are 14 facial bones.
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Oct 23, 2022 · Chapter Objectives. Identify and describe the interior and exterior parts of the human heart. Describe the path of blood through the cardiac circuits. Describe the size, shape, and location of the heart. Compare cardiac muscle to skeletal and smooth muscle. Explain the cardiac conduction system. Describe the process and purpose of an ...
