NHA Phlebotomy Study Guide - Pt 1/Answered/2023

NHA Phlebotomy Study Guide - Pt 1/Answered/2023 NHA Phlebotomy Study Guide - Pt 1/Answered/2023 What are the two circulations of the Heart ? Pulmonary and Systemic The pulmonary circulation carries _____? Deoxygenated blood to the lungs and oxygenated blood from the lungs. What kind of valve is the tricuspid valve? atrioventricle The pulmonic valve is situated between _____________? Right Ventricle (RV) and pulmonary artery Endocardium is which layer of the heart? inner The myocardium is the layer of the heart that is made of ____________? muscle Which layer of the heart is the epicardium? outer What kind of blood do arteries and arterioles carry? oxygenated What percentage of the blood is made up of formed elements? 45% What percentage of formed elements is erythrocytes? 90% What is the oxygen carrying protein in erythrocytes? hemoglobin Where do blood cells originate? bone marrow How many liters of blood does the average adult have? 5-6 What is the normal life span of a RBC? 120 days What is the liquid portion of blood (inside of body) called? plasma What is the function of a leukocyte? protect from infection What is a condition that could cause leukopenia (low white blood cell count)?