Intro to heart Flashcards Preview

Cardiovascular System COPY > Intro to heart > Flashcards

Flashcards in Intro to heart Deck (16)
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1
Q

What encloses the heart?

A

-Pericardial sac

2
Q

What makes the right border of the heart?

A

-Predominantly Right Atrium (some RV)

3
Q

What makes the left borer of the heart?

A

-Predominantly left ventricle

4
Q

What makes the anterior surface of the heart?

A

-Predominantly right atrium and right ventricle

5
Q

What makes the inferior border of the heart?

A
  • Mainly right ventricle

- Some left ventricle

6
Q

What makes the base (posterior) of the heart?

A
  • Mainly the left atrium

- Some right atrium

7
Q

What is the blood flow of the heart from the superior vena cava to the aorta?

A

-SVC/IVC and CS to RA

RA->RV->PA->lungs->PV->LA->LV->aorta

8
Q

Is the aorta or superior vena cava a left handed structure?

A

-Aorta

9
Q

What are the two sinuses (dead ends) in the heart?

A
  • Oblique

- Transverse

10
Q

Why do sinuses (dead ends) form?

A

-As a consequence of folding during development

11
Q

Where is the oblique sinus?

A

-Posterior to the heart

12
Q

What causes the oblique sinus?

A

-Reflection of the serous pericardium by SVC, IVC amd pulmonary veins

13
Q

What causes the transverse sinus?

A

-Reflection of serous pericardium by aorta and pulmonary trunk

14
Q

Why is the transverse sinus advantageous?

A

-Allows aorta and pulmonary trunk to be separated from the SVC by providing access to the passageway between the two

15
Q

Why are the sinuses significant in heart removal?

A

-Remove the heart by first cutting the transverse sinus and then the oblique sinus

16
Q

What is the anatomical location of the heart?

A

-Middle mediastinum