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Lab # 3
Blood Vessels Anatomy
Arteries
Veins
Capillaries
They carry blood away from the heart (they are efferent vessels)
They carry blood back to (toward) the heart (they are afferent vessels
They connect the arteries with the veins
Blood Vessels
Pulmonary veins
Pulmonary arteries
Lumen
Endothelium
Tunica media
Tunica externa
It lines the blood vessel and is exposed to blood.
It is simple squamous epithelium overlying. a basement membrane
Basement membraneIt consists of smooth muscle, collagen, and elastic tissue.
It consists of loose connective tissue that often merges with that of neighboring blood vessels, nerves, or other organs.
They are small vessels that supply blood to at least the outer half of the larger vessels.
Vasa vasorum
Nerve
Tunica interna
The Vessel Wall
Veins have a greater capacity for blood containment than arteries.
Veins have thinner and flaccid walls and contain less muscular and elastic tissue than the arteries, that is why they can expand easily.
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.
Pulmonary trunk
Left pulmonary arteryRight pulmonary artery
Right pulmonary veins
Left pulmonary veins
Pulmonary Arteries and Veins
Diaphragm
Aortic hiatus
R. commoncarotid a.
Brachiocephalic trunk
Ascendingaorta
Aortic arch
Thoracic (descending)aorta (posterior to heart)
Abdominalaorta
L. subclavian a.
L. commoncarotid a.
R. subclavian a.
Anterior view
Superior vena cava
Inferior vena cava
Arteries of the Trunk (thorax)
Lateral view
Arteries of the Head and Neck
Internal carotid a.
Carotid sinus
External carotid a.
Vertebral a.
Axillary a.
Subclavian a.
Commoncarotid a.
Brachiocephalictrunk
Temporal a.
(c) Superficial veins of the head and neck
Subclavian v .
Thyroid gland
Brachiocephalic v .
Vertebral v.
Externaljugular v .
Internaljugular v .
Axillary v.
Superficial Veins of the Head and Neck
R. and L. posterior communicating
arteries
Anterior communicating
artery
Cerebral Arterial Circle or Circle of
Willis
Cerebral Arterial Circle or Circle of Willis
L. Vertebral a.
R. Posterior cerebral a.
L. Anterior cerebral a.
Anterior communicating a.
R. Posterior communicating a.
Basilar a.
L. Middle cerebral a.
L. Posterior cerebral a.
L. Posterior communicating a.
R. Vertebral a.
R. Middle cerebral a.
R. Anterior cerebral a.
Pituitarygland
Opticnerves
L. Internal carotid a.
R. Internal carotid a.
Right brachial artery
Right radial artery Right ulnar
artery
Right axillary artery
Right subclavian arteryArteries of the
Upper Limb
Left subclavian vein
Brachial
Cephalic
Basilic
Left Brachio- cephalic vein
Left axillary vein
Veins of the Upper Limb
RadialUlnar
Median cubital
Brachial
Cephalic
Basilic
Cephalic vein
Cephalic vein
Axillary vein
Axillary artery Basilic
vein
Brachial vein
Brachial artery
Median cubital
veinRadial artery
Basilic vein
Median antebrachial
vein
Ulnar artery
Deep palmar arch
Superficial palmar arch
SpleenLiver
Pancreas
Arteries of the Trunk (abdomen and pelvis)
Celiac trunk
Superior mesenteric a.
Common iliac a.
Inferior mesenteric a.
Internal iliac a.
Renal a.
Gonadal a.
Celiac trunk
Common hepatic a. Splenic a.
L. gastric a.
Pancreatic aa.
Celiac trunk:1- Common hepatic artery2- Splenic artery3- Left gastric artery
Anterior view
External iliac
Posterior view
Femoral artery
Popliteal artery Anterior
tibial artery
Posterior tibial artery
Arteries of the Lower Limb
Popliteal vein
Posterior tibial vein
Lesser saphenous
Anterior tibial vein
Femoral veinGreat
saphenous
Veins of the Lower Limb
External iliac vein
Posterior view
Inferiormesenteric v.
Superiormesenteric v.
Splenic v.Hepaticportal v.
Gastric vv.
The hepatic portal system all the blood draining from the abdominal digestive tract, as well as from the pancreas, gallbladder and spleen
The hepatic portal system gives the liver first claim to the nutrients before the blood is distributed to the rest of the body
It also allows the blood to be cleansed of bacteria and toxins picked up from the intestine
The Hepatic Portal System
Hepatic veins
R. commoncarotid a.
L. commoncarotid a.
L. subclavian a.
Aortic arch
Ascendingaorta
R. subclavian a.
Brachiocephalic trunk
L. axillary a.
L. brachial a.
Pulmonary trunk
Principal Arteries
R. brachial a.
R. radial a.
R. ulnar a.
Abdominal aorta a.
R. common iliac a.
R. external iliac a.
R. internal iliac a.
L. femoral a.
Principal Arteries
L. femoral a.
L. posterior tibial a.
R. anterior tibial a.
Principal Arteries
R. internal jugular v.
L. internal jugular v.
L. subclavian v.
L. brachiocephalic v.
R. subclavian v.
Inferior vena cava
R. cephalic v.
R. brachial v.(cut)
R. basilic v.
Principal Veins
R. cephalic v.
R. Radial v.
R. Ulnar v.L. common iliac v.
Inferior vena cava
L. internal iliac v.
Principal Veins
R. basilic v.
R. Median cubital v.
L. external iliac v.
R. brachial v.(cut)
L. great saphenous v.
Principal Veins
L. femoral v.
