Reviewing Heart Structure/Function

Things to Know 4.1 Heart Structure Know the location of the atria and ventriclesKnow the location of the mitral valve, tricuspid valve, aortic valve, and pulmonary valveKnow the location of the aorta, pulmonary artery, superior vena cava, and pulmonary veinKnow the path blood takes through the heart including which side of the heart has oxygenated and deoxygenated bloodKnow the difference between arteries and veinsKnow which artery is the exception to the rule that all arteries carry oxygenated bloodKnow the difference between pulmonary and systemic circulation4.2 Heart At WorkKnow the terms: systolic, diastolic, EKG heart rateKnow how to read an EKG (meaning you can identify the varying component parts: P wave, T wave, QRS)Understand blood pressure and its relation to arteries heart along with the effects of narrowing one’s arteriesKnow what an ACE inhibitor is and how it is used in the bodyKnow the location of the SA node and the AV node, in addition to the His-Purkinje system. Answer the following question Describe how the circulatory system and respiratory system work together and what the overall purpose. Relate your answer to why we eat and breathe in the first place. Fill in the blanks on this heart! fill in the following: apex, septum, right atrium, left atrium, left ventricle, right ventricle, mitral valve, tricuspid valve, aortic valve, pulmonary valve, pulmonary vein, pulmonary artery, aorta, inferior vena cava, superior vena cava aorta superior vena cava inferior vena cava right atrium right ventricle pulmonary artery pulmonary artery pulmonary vein pulmonary vein left atrium left ventricle tricuspid valve mitral valve aortic valve pulmonary valve septum apex Describing Valves Explain the purpose of the valves in the heart. Include an explanation of what the cusps (or leaflets) refer to (in tricuspid and bicuspid) and what the chordae tendineae are responsible for. Identify the following terms The word pulmonary refers to having to do with the lungs so pulmonary circulation is responsible for the blood to become oxygenated.The term systemic refers to having to do with the body so systemic circulation causes the blood to become deoxygenated. Fill in the following blanks regarding the function of arteries and veins. Generally arteries carry blood away from the heart to the body and it is oxygenated. An exception to this is the pulmonary artery which carries deoxygenated blood away from the heart and to the lungs. It is the veins usually carry deoxygenated blood from the body to the heart. The exception is the pulmonary vein which carries oxygenated blood from the lungs back to the heart. Match the following heart function tests heart rate The number of heartbeats per unit of time, usually per minute. blood pressure Pressure in your arteries as heart beats EKG electrocardiogram measures the electrical activity in the heart Fill in the blanks regarding heart function 1) A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness.2) Normal blood pressure readings would include 120 The systolic number on a blood pressure reading is the top number and measures the contraction of the heart.4) The diastolic number on a blood pressure reading is the bottom number and measures the resting pressure of the heart.5) Hypertension refers to high blood pressure.6) Tachycardia refers to a rapid heart rate. Medication In your own words explain what heart condition an ACE inhibitor is used for and how it works. EKG Label the EKG and use the EKG to answer the next question. P Q R S T Fill in the table about the EKG Describe what the EKG shows about the function of the heart.SPECIFICALLY:- in theFIRSTrow explain what this part of the EKG is showing (what is happening in the heart)- in the SECOND row explain what it shows if there is an issue in this segment (for instance, which segment irregularity might indicate ventricular hypertrophy?) Label A on Image Label B on Image Label C on Image Electrical Currents in the Heart Match the following terms having to do with an EKG sinoatrial node muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals. atrioventricular node Located on the bottom of the right atrium and sends the signal for the ventricles to contract after a slight delay to allow the heart to fill with blood. Purkinje fibers and bundles of His Carry signal from AV node to the ventricles