Download L2 Arteries and Veins

L2 Blood Vessels
Definition: These are tubes of the circulatory
system that carry blood and other liquids
through the body.
  Types
 
  Arteries:
carry blood away from the heart
  Veins: carry blood to the heart
  Capillaries: tiny blood vessels that allow for gas,
nutrient and waste exchange.
L2 CHARACTERISTICS
VESSEL
LUMEN
WALL
NUMBERS
DIAMETER THICKNESS
/mm
/mm
VOLUME
OF BLOOD
/%
AORTA
25.0
2.0
1
2
ARTERIES
4.0
1.0
160
8
ARTERIOLES
0.03
0.02
57 million
1
CAPILLARIES
0.006
0.001
13 000
million
5
VENULES
0.02
0.002
1 300 million
VEINS
5.0
0.5
204
VENA CAVA
30.0
1.5
2
HEART
-
-
-
12
PULMONARY
CIRCULATION
-
-
-
18
© 2008 Paul Billiet ODWS
54
L2 Arteries
VAn 308-Functional Anatomy
L2 Veins
© Kevin Petti, Ph.D. Departments of Natural Sciences
Health, Exercise Science & Nutrition
San Diego Miramar College
L2 Capillaries
http://darwin.iz.uj.edu.pl/iz/anatomy/jakub/grafika/s3e.html
L2 Blood vessels compared
Arteries
Capillaries
Veins
Take blood away from
the heart
Exchange materials
between the blood
and the tissues
Return the blood to
the heart
High pressure blood
Fast flowing blood
Pulses
High-Low pressure
Slow flowing
Low pressure blood
Slow flowing blood
Against gravity
Thick, muscular,
elastic walls
Walls one cell thick
(0.5 µm)
Diameter 6 µm
Very numerous
Muscular not very
thick
valves
© 2008 Paul Billiet ODWS
L2 Assignment
Read
  Do Capillaries and veins lab
  Look at capillaries, veins, and arteries on the slides.
Draw what you see.
