BIO 117 HONDROS PRACTICE EXAM 3 2026 STUDY PAPER QUESTIONS AND CORRECT ANSWERS FULLY SOLVED

BIO 117 HONDROS PRACTICE EXAM 3 2026
STUDY PAPER QUESTIONS AND CORRECT
ANSWERS FULLY SOLVED

⩥ Which layer of the heart allows it to act as a pump?. Answer:
Myocardium


⩥ What is the apex of the heart?. Answer: The tip of the heart, pointing
down towards the left 5th intercostal space.


⩥ Which layer of the heart wall contains the epicardium?. Answer:
Pericardium


⩥ What surrounds the heart?. Answer: Pericardium


⩥ What is related to the mitral valve (tricuspid valve)?. Answer:
Bicuspid valve


⩥ Which of the following contains oxygenated blood?. Answer: Left
Atrium, Pulmonary veins, Aorta


⩥ Which of the following contains deoxygenated blood?. Answer:
Superior Vena Cava, Right Atrium, Pulmonary Arteries

, ⩥ What supplies oxygenated blood to the heart muscle?. Answer:
Coronary Arteries


⩥ Which layer of the heart contains actin, myosin, and troponin?.
Answer: Myocardium


⩥ Which valves are open during atrial systole?. Answer: Tricuspid
Mitral


⩥ What is true of blood leaving the tissues and traveling towards the
right atrium?. Answer: Oxygen poor, carbon dioxide rich


⩥ Valve that prevents backflow of blood into the left ventricle when the
left ventricle is in diastole?. Answer: Aortic


⩥ The aorta receives blood from what structure?. Answer: Left ventricle


⩥ Which vessel carries blood from the pulmonary capillaries to the left
atrium?. Answer: Pulmonary veins


⩥ Which cavity of the heart first receives unoxygenated blood from the
vena cava?. Answer: Right atrium