Hondros Bio 117 Lecture 10 Ch. 16 and 17 questions and answers latest update 2024/2025

Hondros Bio 117 Lecture 10 Ch. 16 and 17 questions and answers latest update 2024/2025 The heart is found in the _____________ cavity, specifically contained inside the mediastinum - correct answer Thoracic Where is the heart positioned where? - correct answer In between both lunge and slightly to the left of the midline The base of the heart is located where? - correct answer The 2nd rib The apex of the heart is located where? - correct answer 5th intercostal space Endocardium - correct answer "Inside layer" Myocardium - correct answer This thick muscular layer is responsible for the pumping of the blood Epicardium - correct answer This part of the pericardial sac is directly attached to the heart. We can also call this serous membranes visceral pericardium Pericardium - correct answer This part if the pericardial sac is continuous with the epicardium, though it does not directly touch the heart. We can also call the serous membrane. In-between the epicardium and pericardium, there is a special fluid called ____________ fluid. - correct answer Serous. This helps to reduce friction from the heart and surrounding organs when it beats. Septum - correct answer This thick structure runs down the middle of the heart and separates the inside into right and left parts. Coronary arteries - correct answer blood vessels that deliver oxygenated blood to the heart tissue. Coronary veins - correct answer blood vessels that drain deoxygenated blood from the heart tissue. Coronary sinus - correct answer all of the coronary veins merged, the large vein of the heart which will drain into the right atria How many times does the heart pump blood? - correct answer Twice, one to the lungs to get oxygen (pulmonary circulation) then pumps it to the body (systemic circulation) to deliver this oxygen Pulmonary circulation (order) - correct answer Right ventricle (DO2) Pulmonary arteries (DO2) Lungs Pulmonary veins (O2) Systemic circulation (order) - correct answer Left ventricle (O2) aorta-large artery (O2) arteries (O2) capillaries veins (DO2) superior/inferior vena cava-large veins (DO2) right atrium (DO2) What kind of blood fills the right atrium and right ventricle? - correct answer DO2 What kind of blood fills the left atrium and left ventricle? - correct answer O2 What kind of blood fills the pulmonary arteries? - correct answer DO2