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BMS 108 Exam Questions and Verified Answers 100% Guaranteed Pass

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BMS 108 Exam Questions and Verified Answers 100% Guaranteed Pass 1. Describe the path of blood as it passed through both the pulmonary and systemic circuits. Begin and end at the right atrium. Include in your discussion the chambers of the heart, heart valves and O2/CO2 status of the blood. - ...

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  • October 30, 2024
  • 66
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BMS 108
  • BMS 108
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©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
BMS 108 Exam Questions and Verified

Answers 100% Guaranteed Pass


1. Describe the path of blood as it passed through both the pulmonary and

systemic circuits. Begin and end at the right atrium. Include in your

discussion the chambers of the heart, heart valves and O2/CO2 status of

the blood. - ✔✔...

2. Describe the exchange of O2 and CO2 between the pulmonary and

systemic circuits. - ✔✔•Right ventricle pumps blood that is low in O2 and

high in CO2 to the lung. low pressure system

Systemic Circuit

•Left ventricle pumps blood that is high O2 and low in CO2 to all tissues

•High pressure system

3. Name the 4 heart valves and state which chambers and arteries are

separated by these valves. - ✔✔•Atrioventricular Valves (AV)

-Rt Tricuspid

-Lt Mitral

•Semilunar Valves

,©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
-Rt Pulmonic

-Lt Aortic

4. What causes heart valves to open or close? - ✔✔Open and close due to

pressure differences on either side of the valve When pressure is greater

behind the valve, the leaflets are blown open and the blood flows through

the valve. However, when pressure is greater in front of the valve, the

leaflets snap shut and blood flow is stopped

5. What causes heart sounds? - ✔✔•Due to valve closure



•1st sound, S1, AV valves close at the start of systole



•2nd sound, S2, semilunar valves close at the start of diastole

6. Which valves close at the start of systole? Diastole? - ✔✔semilunar

valves close at the start of diastole. Av valves close at the start of systole

7. What are heart murmurs? - ✔✔1.Insufficient Valve

-won't fully close (leaky)



2.Stenotic Valve

-won't fully open (narrowed)

,©NINJANERD 2024/2025. YEAR PUBLISHED 2024.

3.Hole in the Septum

8. What's the difference between an insufficient valve and a stenotic valve?

- ✔✔1.Insufficient Valve

-won't fully close (leaky)



2.Stenotic Valve

-won't fully open (narrowed)

9. What is the relationship between streptococcus infection, rheumatic

fever and heart murmurs? - ✔✔-Autoimmune disease

-Immune system attacks heart valves

-Triggered by streptococcus infection

-causes inflammation and subsequent scarring of the valves, leading to

valve stenosis or insufficiency.

10. What is the function of the intercalated discs that connect one

myocardial cell to another? - ✔✔Cardiac Muscle = Myocardial Cells

•Striated

•Branched

•Connected to one another by Intercalated Discs

-Desmosomes bind cells together

, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
-Gap Junctions have connexons (channels) that act as electrical synapses

•Form Functional units

-Atrial myocardium

-Ventricular Myocardium

11. What structure in the heart separates the ventricular myocardium from

the atrial myocardium? - ✔✔by the non-conducting fibrous skeleton,

12. What characteristic of the ventricular myocardium allows it to act as a

functional unit of contraction? - ✔✔Desmosomes bind cells together

Gap Junctions have connexons (channels) that act as electrical synapses:

functional unit of contraction

a. Atrial pressure exceeds ventricular pressure. - ✔✔Diastole

b. The semilunar valves have just opened. - ✔✔Systole

c. The AV valves have just opened - ✔✔Diastole

d. Blood is flowing from the right atrium to the right ventricle. - ✔✔Diastole

e. Blood is flowing from the left ventricle into the aorta. - ✔✔systole

f. The first heart sound (S1) is heard. - ✔✔•1st sound, S1, AV valves close

at the start of systole

g. The second heart sound (S2) is heard. - ✔✔•2nd sound, S2, semilunar

valves close at the start of diastole

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