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general anatomy

index card

QuestionAnswer
general anatomy of the heart
describe the location of the apex is located at the level of the 5th intercostal and mid-clavicular line on the left
identify the heart the heart is a hollow muscular organ
endocardium
identify the innermost layer of the heart endocardium
describe the function of the chordae tendinae strings of connective tissue that keep in place the av valves
explain the function of the endocardium is o prevent blood cell destruction and clotting
myocardium
identif the middle and contractile layer of the heart myocardium
describe what the calcium ions influence the force of muscle contraction
identify the myocardium it is made up of special striated muscle fiber with strong connection with each other intercalated disks and branches that ensure a unified and simulataneous contractions of all muscles fibers
heart skeleton
explain what is the heart skeleton made up the heart skeleton is made up of four rings of thick connective tissue
identify the function of the rings these rings which surround the base of the heart and large vessels create the cardiac septum and provide a solid connection between the heart chambers and a strongattachment for the hart valves
pericardium
define what ligaments is pericardium attached pericardium is attached with ligaments to the spinal column and diaphragm fixing the heart in its position
explain parietal pericardium and whats the inner layer the inner layer is called visceral pericardium or epicardium
identify the outermost layer of he heart pericardium
explain why two layers of pericardium are separated they are separated by a thin layer of fluid to prevent friction these laer and fluids between them are reerred to as the pericardial sac
the heart chamber
describe the structure in the middle of th heart is called septum divides the heart into two sides
describe the function of oxygenated blood deoxygenated blood with low pressure from veins into the lung pulmonary circulation
explain in other words what is oxygenated blood oxygenated blood cmes from the lungs from the left side oxygenated blood with high pressure blood pressure toward the tissuse through arteries systemic circulation
describe the heart four chambers they are left and right atria smaller thin-walled chamber that are situated on top of the ventricles receives blood from the lungs and veins and the right and left ventricles larger more muscular
explain where the top ventricles recieve blood from receive blood from the lungs and veins
explain the system of the right and left ventricles larger more mucular chambers that ejet blood out to the systemic circulation and to the two lungs
right atrium
describe the function of the right atrium recieves deoxygenated blood returning to the heart from the body via the superior and inferior vena cava which carries blood from the upper body and inferior vena cava which carries blood from the lower body
explain where the (ra) receives blood from receives blood from the coronary sinus
identify the larget vein that drains deoxygenated blood coronary sinus the largets vein that drains the heart muscles deoxygenated blood
identify from where the blood in the upper and lower body comes from the upper body comes from the superior vena cava and from the lower body comes from the inferior vena cava
right ventricle
describe where the right ventricle recieves deoxygenated blood right ventricle receives deoxyenated blood from the right atrium
explain where the right atrium pumps blood it pumps to the lungs for oxyeganted through the pulmonary trunk and then to the pulmonary arteries
the pulmonary arteries
explain the work that the pulmonary arteries does are the only arteries in the body that carry deoxygenated blood
explain hy the pulmonary arteries are the only one that carry deoxygenated blood because the are going away from the body
left atrium
explain the function of the left atrium receives oxygented blood returning from the lungs via the right and left pulmonary veins
describe he function of pulmonary veins they go to the left atrium with oxygenated blood from the lungs
the pulmonary
explain the function of the pulmonary veins are the only veins in the body that carry oxygenated blood
describe the pulmonary location they are going towards the heart
left ventricle
identify where left ventricle recieves oxygnated blood from the left atrium and pumps it to the body through the aorta
name the largest artery in the body aorta
the heart valves
identify the purpose of the heart valves is to prevent backflow of blood there by assuring uni-directional flow thru the heart
atrioventricular
identify the location of the atrioventricular valves are located between the atria and ventricles
idenify one of cusped valves they have tough fibrous rings
identify another cusped valve characteristics are strong and long leaflets
identify the accessory organs that cusped valve have they have accessory organs such papillary muscles and chrodae tendinae
tricuspid valve
explain the function of the tricuspid valve it prevent backflow from ight atrium to right ventricle
identify the tricuspid valve location is located between he right atrium and the rght ventricle
bicuspid miral valves
describe the functionof the bicuspid mitral valve it prevents back flow from the left atrium to left ventricle
identify the bicuspid mitral valve is located between the left a and left ventricle
semilunar
explain why is called semilunar because they have half-moon shaped leaflets
identify the characteristics semilunar the semilunar has three leaflets
identify i intesity shallow in depth
explain if seilunar has any accessory organs they have no accessory organs
pulmonic valve
identify the pulmonic valve location located between the right ventricle and the pulmonary trunk
aortic valve
identify the aortic valve location located between the left ventricle and aorta
Created by: claudia16