Special Circulations

Question 1

What part of the lung recieves the most flow?

Answer 1

The bottom

Question 2

What is special about the L. Circumflex Coronary circulation?

Answer 2

It gets pinched just before IC, and so that dip results in a build up of Adenosine and you see a massive spike during Diastole.

Question 3

Which region of the heart is common for MIs and why?

Answer 3

Sub-endocardium area because the pressure needs to exceed well over 120

Question 4

In supply-demand; the LVP is ____

Answer 4

Demand

Question 5

In supply-demand; the DAP is ___

Answer 5

Supply

Question 6

In supply-demand; ^^ HR ____

Answer 6

Lowers supply

Question 7

In supply-demand; ^^ Sys P ____

Answer 7

More demand

Question 8

In supply-demand; ^^ Dia P ____

Answer 8

More Supply

Question 9

Cushing’s reflex

Answer 9

physiological nervous system response to increased intracranial pressure (ICP) that results in Cushing’s triad of increased blood pressure, irregular breathing, and bradycardia.

Question 10

Cerebral Ischemic Response

Answer 10

<50 O2 cranks up pressure/blood flow

Question 11

Five structures that get closed off from fetal circulation?

Answer 11

1. Umb. Arteries
2. Umb. Vein
3. Ductus Venosus (Liver)
4. Foramen Ovale (Atrial-septal)
5. Ductus Arteriosus (Pulm.-Aort)