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NPB 101 MIDTERM 2 PART 1 QUESTIONS AND ANSWERS STUDY GUIDE WITH COMPLETE SOLUTION!!
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NPB 101 MIDTERM 2 PART 1 QUESTIONS AND ANSWERS STUDY GUIDE WITH COMPLETE SOLUTION!!
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NPB 101 MIDTERM 2 PART 1 QUESTIONS AND ANSWERSSTUDY GUIDE WITH COMPLETE SOLUTION!!
What are the 3 principal components that make up the circulatory system?
Answers :The heart, the blood vessels, the blood
What systems/organs impact the function of the endocrine system?
Answers :The endocrine system, nervous system, kidneys
Do all organs receive the same quality of blood? What is the term for this concept?
Answers :Yes, they all receive nutrient rich blood; Parallel distribution of blood
Is there an exception to the parallel distribution?
Answers :Yes, the liver; receives both blood in series and in parallel
What is the name of the "pipe" that connects blood flow between 2 organs?
Answers :Hepatic Portal vein
What are the two circuits of the circulatory system? Which one is in charge of
delivering nutrients?
Answers :Pulmonary + Systemic (nutrients)
How many chambers are in the heart? What are they?
Answers :4 chambers; Right Atrium, Right Ventricle, Left Atrium, Left Ventricle
How does blood flow through the systemic circuit?
,Answers :Left ventricle--> organs/tissues (except lungs)-->Right atrium--> right
AV valve-->Right ventricle
How does blood flow through the pulmonary circuit?
Answers :Right ventricle-->lungs-->left atrium-->left AV valve-->Left ventricle
What are arteries?
Answers :Blood vessels that leave the heart
What are veins?
Answers :Blood vessels that return to the heart?
As blood flows through the systemic circuit, what is exchanged? Where exactly
does the exchange happen?
Answers :Nutrients are exchanged AND O2 is lost while CO2 gained; at
capillaries
Where is the heart in our body?
Answers :At the center of the thorax; ventral side
What are the two arteries and where do the exit from respectively?
Answers :Aorta (both ascending and descending)=exits from left ventricle
Pulmonary arteries (both right and left)=exit from right ventricle
What are the two veins and where do they enter from respectively?
Answers :Vena Cava (both top and bottom)=right atrium
, Pulmonary veins (both right and left)= left atrium
What causes the AV valve to let blood flow from atrium to ventricle?
Answers :The pressure of the atrium is higher than the pressure of the ventricle
What are the two types of valves in our hearts and where are they positioned?
Answers :Atrioventricular (AV)=between atrium and ventricle
Semilunar=between ventricle and artery
What are the specific names for the AV valves?
Answers :Tricuspid valve (right side) and bicuspid valve (left side)
What are the specific names of the semilunar valves?
Answers :Aortic valve and pulmonary valve
Can valves open both ways?
Answers :No, while pressure is what drives their opening/closing, pressure going
backwards closes the valve
Do heart muscles receive messages the same way skeletal muscles receive
messages?
Answers :No, they receive messages from specialized cells
What keeps heart muscle cells attached to each other?
Answers :Intercalated disks
Describe the structure of intercalated disks.
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