Lymphatic Blood Pressure

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1

Mean Arterial Pressure- MAP

the average pressure in blood vessels propelling blood to capillaries

2

MAP formula

MAP = diastolic P + pulse pressure/ 3

3

Arterial Blood Pressure Function

maintians blood flow through capillaries
MUST overcome peripheral resistance

4

Systolic Pressure

Peak pressure in arteries during ventricular systole ( contraction)

5

Diastolic Pressure

peak pressure in arteries during ventricular diastole (relaxation)

6

Pulse pressure

systolic - diastolic

7

Systolic 120 and Diastolic 90

MAP = 90 +[ (120 - 90)/ 3] = 100mmHg

8

MAP decline

MAP decline as arteries become smalller but larger in numbers

9

Pulse pressure decline

decline as result of damped elastic rebound arteries

10

High BP

hypertension > 140 / 90

11

Low BP

hypotension

12

Venous Pressure characteristics (3)

1. relatively low
2. CO influences venous return
3. Pressure change ~ 16mmHg
18mmHg to 2mmHg

13

Muscular Pump

helps with venous pressure, neighboring muscles contract to return flow to vena cavae

14

Respiratory Pump inhale

helps w/ venous pressure as you inhale pressure decrease blood in pleural cavity this "push blood into inferior vena cavae"

15

Respiratory Pump exhale

helps w/ venous pressure as you exhale this 'push blood into right atrium"

16

Substance in Capillary Exchange

water, ions and small organic molecule squeeze btw cells or pores of fenestrated capillary

17

Large water-soulbe compound

pass into FENESTRATED capillaries in
1. kidneys
2. intestinal tract,
3. endocrine organs
4. hypothalamus

18

Lipids (what and how)

(fatty acids, steroids, O2 and CO2
diffuse across cell membrane

19

Plasma protein

SINUSOIDAL Capillary (as in liver)

20

Sinusoidal Capillary

many holes-most permeable for rapid movement of large molecules; occurs in liver, spleen, bone marrow

21

Fenestrated Capillary

a capillary with small pores in its endothelium
kidneys, small intestine, hypothalamus, endocrine glands

22

Spleen

BLOOD! Produces blood cells, destroys damaged blood cells, stores blood cells; largest lymp organ