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What originates at the xiphoid process, ribs 7-12, & the anterior surface of lumbar vertebrae?
What continues from the neck into the mediastinum & divides into the right & left primary bronchi?
What is a ridge on the inner surface of the distal trachea at the bifurcation into the primary bronchi?
What courses cranially through the thoracic cavity along the left, posterior chest wall?
What enters the blood circulatory system & empties lymph into the junction of the left internal jugular vein & left subclavian vein?
What nerves continue from the neck & pass through the mediastinum & innervate visceral structures of the thorax, including the heart?
Right & left vagus nerves (CN X)
What is a groove in the medial surface of each lung through which blood vessels & bronchi enter & exit the lung?
Hilus of the lung
What consists of the pulmonary arteries, pulmonary veins, primary bronchi, nerves & lymph vessels?
Root of the lung
What is the part of the lung that touches the inner side of the ribs & intercostal muscles?
Costal surface of the lung
What aspect of the lung is a concave, inferior surface that touches the superior border of the diaphragm?
What are two distinct impressions on the medial surface of the left lung?
Cardiac impression & groove for the aorta
What separates the inferior lobe from the middle & superior lobes of the right lung?
What are a series of successively branching & increasingly tiny passageways within each lung?
What are a microscopic series of successively branching & increasingly tiny passageways for inhaled air?
What is a fist-sized muscular organ located in the mediastinum, which pumps blood through blood vessels to all organs & tissues of the body?
What leaves the right ventricle & carries deoxygenated blood through the pulmonary arteries to the lungs?
In the systemic circuit, oxygenated blood is pumped through what to reach the left ventricle?
In the systemic circuit, blood is pumped through the _______ _________, through the aorta, & throughout the body.
Aortic semilunar valve
What is a double-layered sac comprised of the parietal pericardium & visceral pericardium?
What is located between the visceral & parietal layers of the serous pericardium & contains a thin layer of serous fluid?
Where is the pericardial cavity located?
between the visceral & parietal layers of the serous pericardium
What are the regions of the aorta within the thoracic cavity?
Ascending aorta, aortic arch, & thoracic aorta
What are the branches extending from the aortic arch?
Brachiocephalic artery, left common carotid artery, & left subclavian artery
Brachiocephalic artery, left common carotid artery, & left subclavian artery all branch from what?
What branch of the aortic arch divides into the right subclavian & right common carotid artery?
What branch of the aortic arch splits into the left external & left internal carotid artery?
Left common carotid artery
What branch of the aortic arch supplies blood to the upper limb & structures of the neck?
Left subclavian artery
What arises from the right ventricle & divides into the right pulmonary & left pulmonary arteries?
What is a J-shaped vein that returns blood from tghe chest wall & usually drains into the superior vena cava?
Which ventricle pumps blood through the pulmonary trunk into the pulmonary arteries & to the lungs?
What is the innermost layer of the heart wall, made of simple squamous epithelial tissue?
What type of valves are located at the base of the aorta & the base of the pulmonary trunk?
What is the remnant of the foramen ovale of the heart, located in the wall of the right atrium?
What is the remnant of the ductus arteriosus, a connection between the pulmonary trunk & the aorta?
What were both shunts in the fetal heart, taking blood away from pulmonary circulation?
foramen ovale & ductus arteriosus
What is an "ear-shaped" expansion of the right atrium on the external surface of the heart?
What is the blood vessel that drains blood from the cardiac veins & back into the right atrium?
What travels horizontally along the posterior surface of the heart between the atria & ventricles & enters the right atrium?
What are muscular ridges located on the inner surface of the right auricle & right atrium?
What are cone-shaped extensions of the ventricular myocardium which attach the chordae tendinae to the internal surface of the heart wall?
What valve does not have chordae tendineae attached to it?
aortic semilunar valve & pulmonary semilunar valve
What guards the opening to the pulmonary trunk & prevents the back flow of blood into the right ventricle?
Pulmonary semilunar valve
What enter the left atrium on the posterior surface of the heart, inferior to the pulmonary arteries?
What guards the opening to the aorta & prevents backflow of blood into the left ventricle?
Aortic semilunar valve
What is a venous structure that drains blood from the cardiac veins into the right atrium?
What generates impulses, which are passes the wave of depolarization into the atriventricular bundle?
What is located at the interior portion of the interatrial septum & passes the wave of depolarization into the atrioventricular bundle?
What are located in the interventricular septum & pass the impulse to the Purkinje fibers throughout the ventricular myocardium?
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