1. Lab # 3
Blood Vessels Anatomy

2. Blood Vessels Arteries
Pulmonary
Pulmonary
They carry blood away from the heart (they are efferent vessels)
veins
arteries
Veins
They carry blood back to (toward) the heart (they are afferent vessels
Capillaries
They connect the arteries with the veins

3. The Vessel Wall Lumen Tunica interna Tunica media Tunica externa
It lines the blood vessel and is exposed to blood.
Endothelium
It is simple squamous epithelium overlying. a basement membrane
Basement membrane
Tunica media
It consists of smooth muscle, collagen, and elastic tissue.
Tunica externa
It consists of loose connective tissue that often merges with that of neighboring blood vessels, nerves, or other organs.
Vasa vasorum
They are small vessels that supply blood to at least the outer half of the larger vessels.
Nerve

4. Veins have a greater capacity for blood containment than arteries.
In large arteries, blood pressure averages 90 to 100 mm Hg, whereas in veins it averages about 10 mm Hg.
Veins, therefore, do not require thick, pressure resistant walls.
Veins have thinner and flaccid walls and contain less muscular and elastic tissue than the arteries, that is why they can expand easily.

5. Pulmonary Arteries and Veins
Right pulmonary artery
Left pulmonary artery
Left pulmonary veins
Right pulmonary veins
Pulmonary trunk

6. Arteries of the Trunk (thorax)
R. common
carotid a.
L. common
carotid a.
R. subclavian a.
L. subclavian a.
Brachiocephalic trunk
Aortic arch
Superior vena cava
Ascending
aorta
Thoracic (descending)
aorta (posterior to heart)
Inferior vena cava
Diaphragm
Aortic hiatus
Abdominal
aorta
Anterior view

7. Superficial Veins of the Head and Neck
Arteries of the Head and Neck
Temporal a.
Vertebral v.
External
jugular v .
Internal carotid a.
External carotid a.
Carotid sinus
Internal
jugular v .
Thyroid gland
Vertebral a.
Subclavian v .
Axillary v.
Brachiocephalic v .
Common
carotid a.
Subclavian a.
(c) Superficial veins of the head and neck
Axillary a.
Brachiocephalic
trunk
Lateral view

8. Cerebral Arterial Circle or Circle of Willis
Anterior communicating artery
R. and L. posterior communicating arteries
Cerebral Arterial Circle or Circle of Willis

9. Cerebral Arterial Circle or Circle of Willis
Anterior communicating a.
L. Anterior cerebral a.
R. Anterior cerebral a.
L. Internal carotid a.
R. Internal carotid a.
Optic
nerves
L. Middle cerebral a.
R. Middle cerebral a.
Pituitary
gland
L. Posterior communicating a.
R. Posterior communicating a.
L. Posterior cerebral a.
R. Posterior cerebral a.
Basilar a.
L. Vertebral a.
R. Vertebral a.

10. Arteries of the Upper Limb
Right subclavian artery
Arteries of the Upper Limb
Right axillary artery
Right brachial artery
Right radial artery
Right ulnar artery

11. Left Brachio- cephalic vein
Veins of the Upper Limb
Left subclavian vein
Left Brachio- cephalic vein
Left axillary vein
Cephalic
Brachial
Basilic

12. Basilic
Brachial
Median cubital
Cephalic
Radial
Ulnar

13. Median antebrachial vein Superficial palmar arch
Median cubital vein
Deep palmar arch
Cephalic vein
Brachial artery
Cephalic vein
Radial artery
Brachial vein
Median antebrachial vein
Superficial palmar arch
Axillary artery
Ulnar artery
Basilic vein
Axillary vein
Basilic vein

14. Arteries of the Trunk (abdomen and pelvis)
Spleen
Liver
Pancreas
Celiac trunk
Celiac trunk
L. gastric a.
Common hepatic a.
Pancreatic aa.
Splenic a.
Superior mesenteric a.
Renal a.
Gonadal a.
Inferior mesenteric a.
Common iliac a.
Celiac trunk:
1- Common hepatic artery
2- Splenic artery
3- Left gastric artery
Internal iliac a.

15. Arteries of the Lower Limb
External iliac
Femoral artery
Popliteal artery
Anterior tibial artery
Posterior tibial artery
Posterior view
Anterior view

16. Veins of the Lower Limb Posterior view External iliac vein
Femoral vein
Great saphenous
Popliteal vein
Anterior tibial vein
Posterior tibial vein
Lesser saphenous
Posterior view

17. The Hepatic Portal System
The hepatic portal system all the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder and spleen
Hepatic veins
Gastric vv.
The hepatic portal system gives the liver first claim to the nutrients before the blood is distributed to the rest of the body
Hepatic
portal v.
Splenic v.
Superior
mesenteric v.
Inferior
mesenteric v.
It also allows the blood to be cleansed of bacteria and toxins picked up from the intestine
The Hepatic Portal System

18. Principal Arteries L. common carotid a. R. common carotid a.
R. subclavian a.
L. subclavian a.
Brachiocephalic trunk
Aortic arch
Ascending
aorta
Pulmonary trunk
L. axillary a.
L. brachial a.

19. Principal Arteries R. brachial a. Abdominal aorta a.
R. common iliac a.
R. internal iliac a.
R. external iliac a.
R. radial a.
R. ulnar a.
L. femoral a.

20. Principal Arteries L. femoral a. L. posterior tibial a.
R. anterior tibial a.

21. Principal Veins L. internal jugular v. R. internal jugular v.
R. subclavian v.
L. subclavian v.
L. brachiocephalic v.
R. cephalic v.
Inferior vena cava
R. brachial v.
(cut)
R. basilic v.

22. Principal Veins R. brachial v. (cut) R. cephalic v. R. basilic v.
R. Median cubital v.
Inferior vena cava
L. common iliac v.
R. Ulnar v.
L. internal iliac v.
R. Radial v.
L. external iliac v.

23. Principal Veins
L. femoral v.
L. great saphenous v.