circulatory anatomy
TRANSCRIPT
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LECTURE TOPIC:THE VASCULAR SYSTEM
(circulatory system)
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THE CIRCULATORY SYSTEMSystemic circuit
Pulmonary circuit
The circulatory system
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BLOOD VESSELS:
ARTERIES
VEINS
ARTERY VEIN
ARTERI Vaso-Vasorum
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arterial system
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DIVISIONS OF AORTA:
1. Ascending aorta
2. Arch of aorta
3. Descending aorta
4. Abdominal aorta
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Ascending aorta
Aortic archDescending aorta
Abdominal aorta
Thoracic aorta
20 am long,
Give rise into
Parietal and
visceral
Branches.
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BRANCHES OF ASCENDING AORTA:
Right Coronary artery
Left Coronary artery
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Branches of ascending aorta
RightCoronaryArtery
RightCoronaryArtery
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BRANCHES OF RIGHT CORONARY ARTERY:
oPosterior inter-ventricular branch.
oMarginal branch.
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BRANCHES OF LEFT CORONARY ARTERY:
Anterior inter-ventricular branch.
Circumflex branch.
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ARCH OF AORTA BRANCH INTO:
(3 DIVISIONS)
1. Brachio-Cephalic trunk
2. Left common carotid
3. Left subclavian
Right common carotid
Right subclavian
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Brachio-Cephalic trunk
Left common carotid Right common carotid
Left subclavianRight subclavian
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ARTERIES THAT SUPPLY THE
HEAD AND NECK:
Right and Left common carotid artery
Vertebral artery
(Common carotid artery branch off near the
mandible into external and internal arteries)
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External carotid
Internal carotid
Left common
carotid Right Common
carotid
Head and neck arteries
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EXTERNAL CAROTID ARTERY SUPPLY:
o Throat
o Thyroid
o Tongue
o Face (except eyes, fore-head and nose)
o Ears
o Scalp
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BRANCHES OF EXTERNAL CAROTID ARTERIES
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INTERNAL CAROTID ARTERY SUPPLY:
oBrain
oEyes
o Fore-head
oNose
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THE RIGHT AND LEFT VERTEBRAL ARTERIES:
Supply Neck and chest
Arise from subclavian artery
Pass through the transverse foramina (CVII – CI)
Enter the foramen magnum
Join the Circle of Willis though the basilar artery
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Circle of Willis
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ARTERIES THAT SUPPLY SHOULDER
AND UPPER LIMBS:
Right and left subclavian arteries
Axillary artery
Brachial artery Radial and ulnar arteries
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Digital arteries
-------Palmar arterial arch
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ABDOMINAL AORTA:(BRANCHES)
1. Celiac trunk.
2. Superior and inferior mesenteric arteries.
3. Renal arteries.
4. Gonadal arteries.
5. Common iliac arteries.
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CELIAC TRUNK SUPPLY:
o Stomach
o Spleen
o Pancreas
o Liver
o Gall-bladder
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SUPERIOR AND INFERIOR MESENTERIC ARTERY SUPPLY:
oPancreas,
o intestine
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Pancreas
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ARTERIES OF THE LOWER LIMBS:
Right and left external iliac
Femoral artery
Popliteus
Anterior and posterior tibial artery
Dorsal pedis
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-------Dorsal pedis arch
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VENOUS SYSTEM
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I. Coronary sinus (from the heart wall)
II. Superior vena cava
III. Inferior vena cava
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Coronary
Sinus
Coronary
Sinus
Ostium
Right
atrium
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VEINS OF THE HEAD AND NECK:
I. External jugular
II. Internal jugular
III. Vertebral
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EXTERNAL JUGULAR VEIN DRAIN THE:
oFacial region,
oScalp.
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INTERNAL JUGULAR VEIN DRAIN:
The brain
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MAJOR VEINS OF THE
SHOULDER AND UPPER LIMB:
In the region of shoulder, Axillary vein
receive blood from several regions.
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AXILLARY VEIN RECEIVE BLOOD FROM:
1. Cephalic vein (lateral arm and fore-head)
2. Basilic vein ( medial arm and fore-arm)
3. Brachial vein
4. Radial vein
5. Ulnar vein
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VEINS OF THE THORAX:
Azygos,
Hemi azygos
(empty into the superior vena cava)
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VEINS OF THE ABDOMEN AND PELVIS:(EMPTY INTO THE INFERIOR VENA CAVA)
Hepatic vein
Renal veins
Gonadal veins
Right and left common iliac
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HEPATIC PORTAL SYSTEM:
Begins and ends in capillaries,
Capillaries from digestive organs to
capillaries of the liver.
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PORTAL VEIN RECEIVE BLOOD
FROM:
(Unpaired organs of the abdominal cavity)
1. Mesenteric veins
2. Gastric vein
3. Cystic vein
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VEINS OF THE LOWER LIMBS:
Superficial
Deep
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Superficial Veins:
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Varicose veins
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thank you for attention
THE END!