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Med Tech Cardio
A&P of the heart
Question | Answer |
---|---|
thickest layer of the heart | myocardium |
receives oxygenated blood from the lungs | left atrium |
received blood from the left atrium | left ventricle |
smooth layer of cells that line the inside of the heart | endocardium |
Valve located between the left atrium and left ventricle | Bicuspid(Mitral) |
Valve located between the right atrium and right ventricle | Tricuspid |
what is it called when the heart rests? | diastole |
what is it called when the heart contracts | systole |
valve located between the left ventricle and aorta | aortic valve |
valve located between the right ventricle and pulmonary artery | pulmonary valve |
double layer membrane that lines the outside of the heart | pericardium |
group of nerve cells located in the right atrium | SA Node |
The electric impulse travels from the SA node to the _____ | AV Node |
The electric impulse travels from the AV node to the _____ | Bundle of HIS |
The electric impulse travels from the Bundle of HIS to the | Right and Left bundle branches |
The electrical impulse travels from the right and left bundle branches to the | Purkinje Fibers |
The electrical impulse starts? | At the SA node |
What does PMI stand for? | Point of Maximal Impulse |
Where is the PMI? | 5th intercostal space midclavicular line, left of the sternum |
Muscular wall that separates the heart into a right and a left side | septum |
Three main kinds of blood cells | RBC's, WBC's, & Thrombocytes |
Blood vessels that carry blood away from the heart are called? | Arteries |
Blood vessels that carry blood to the heart are called? | Veins |
Smallest branches of arteries are called | Arterioles |
Smallest branches of veins are called | Venules |
Connect arterioles with venules | Capillaries |
Red blood cells are called | Erythrocytes |
White blood cells are called | Leukocytes |
Aother name for thrombocytes | Platelets |
Main function of the leukocytes? | Fight infection |
How do leukocytes fight infection | Phagocytosis- Engulf, digest and destroy pathogens |
The sound heard when taking a blood pressure is called? | Korotkoff sound |
When taking an Apical Pulse you hear? | The opening and closing of the heart valves. |
What is S1 and S2? | The sound made by the opening and closing of the valves |
What is the range for a normal heart rate? | 60-100 beats per minute |
A heart rate of 45 is called? | Bradycardia |
A heart rate of 120 is called? | Tachycardia |
What is the name of the instument used to take a blood pressure? | Sphygomanometer |
When you palpate a pulse what are you feeling? | An artery |
When you take a pulse or a bp what part of the heart is the blood coming from? | The left ventricle |
What is a blood pressure? | The force of blood against an arterial wall |
What are the names of the blood proteins necessary for clotting? | Prothrombin and Fibrinogen |
What is the name of the protein that carries oxygen? | Hemoglobin |
What is unique about Hemoglobin? | It gives blood it's red color. |
What vein has more oxygen than the rest of the veins in the body? | Pulmonary vein |
What blood cell lives approximately 120 days? | RBC's |
What blood cell lives 3-9 days? | WBC's |
The right side of the heart pumps blood to the ? | LUNGS |
The outer layer of the heart is the? | Epicardium |
The left side of the heart pumps blood to the? | Body |
What is the function of the Coronary Vessels? | Provide oxygen to the myocardium |
What vessel delivers oxygen to the myocardium? | Coronary Arteries |
What collects the deoxygenated blood in the myocardium? | Coronary Veins |
What coronary artery is the largest and considered the "widow maker"? | Left coronary artery |
What are the three largest coronary arteries? | R and L coronary arteries and the circumflex |
The "P" wave in an EKG represents? | The electrical impulse starting in the SA traveling through the atria |
The "qrs" wave represents? | The electrical conduction through the ventricles |
The "T" wave represents | The ventricles relaxing |