HK 100 EXAM 3 ACTUAL TEST PAPER QUESTIONS AND SOLUTIONS COMPLETE REVIEW RESOURCE

HK 100 EXAM 3 ACTUAL TEST PAPER
QUESTIONS AND SOLUTIONS COMPLETE
REVIEW RESOURCE

●● Cardiovascular system functions
Answer: transports O2 and nutrients to the muscle


remove wastes


helps regulate body temperature


●● 4 chambers 2 pumps
Answer: right atrium(ontop leftside) right ventricle(bottome left side)
left atrium(top right side) left ventricle(bottome right side)


●● tricuspid valve
Answer: right atrioventricular (AV)


●● bicuspid
Answer: left AV


●● What are the 4 major vessels of the heart

,Answer: vena cava
pulmonary arteries
pulmonary veins
aorta


●● Blood flow of heart
Answer: vena cava, right atrium, right ventricle, pulmonary artery,
lungs, pulmonary vein, left atrium, left ventricle, to aorta, to tissues


●● pulmonary valve
Answer: pulmonary semilunar


●● aorta valve
Answer: aortic semilunar


●● Pulmonary Circuit
Answer: pumps deoxygenated blood from the RV to the lungs via the
pulmonary arteries.


Returns oxygenated blood to the LA via pulmonary veins


●● Systemic Circuit
Answer: Pumps oxygenated blood from LV to the whole body via aorta

, Returns deoxygenated blood to the RA via vena cavae


●● Veins/venules
Answer: return blood to the heart, very low pressure, valves prevent
back flow


●● capillaries
Answer: The only site for the exchange of oxygen and nutrients within
tissues


●● arteries/arterioles
Answer: carry blood away from heart, under high pressure, have a
smooth muscle layer


●● epicardium (visceral pericardium)
Answer: serves as lubricative outer covering


●● myocardium
Answer: provided muscular contractions that eject blood from heart
chambers


●● endocardium