Lecture 10 Human Phys

less obvious CV roles

monitor tissue integrity, signaling

hematocrit percent

45

average hemoglobin g/dL

15

average RBC count per microliter

5 million

order of magnitude of white cell count per microliter

thousand

plasma contents

ions, proteins, nutrients, wastes

what makes plasma yellow

bilirubin

percent of plasma that is protein by weight

7

percent of plasma albumin

4.5

percent of plasma globulins

2.5

percent of plasma fibrinogen

0.3

plasma Na+

145 mM

plasma K+

4 mM

plasma Ca2+

2.5 mM

plasma CO2

1 mM

plasma O2

0.1 mM

plasma glucose

100 mg/dL

hemoglobin molecules per RBC

2 million

RBC diameter

7 micrometers

mature RBC has no

nucleus, ribosomes

RBC changes shape

sickle cell anemia

anemia due to too few

RBCs, hemoglobin

what hormone stimulates production of RBCs

erythropoietin

what organ releases the hormone that stimulates blood cell production

kidney

where does the hormone to increase blood O2 go

red bone marrow

left heart circulation

systemic

right heart circulation

pulmonary

which circulatory organ has portal system

liver (hepatic)

blood ONLY FLOWS THROUGH

pressure gradient

deltaP=

flow*resistance

Resistance equation

(viscosity*L)/r^4*(8/pi)

in a closed system, flow is ____ at all levels

same

flow units

l/s

velo units

m/s

velocity in different types of vessels depends on

TOTAL cross-sectional area

velocity equation

v=Q/A

MAP formula

2/3Dia+1/3Sys

MAP pressure measures pressure of which vessel

aorta