Download Lec. 6 - Blood Vesse..

Vessel Circulation and
Blood Vessels
PBP Summer 2014
Nikeshia Dunkelly-Allen
[email protected]
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Pulmonary Circuit
Function: Oxygen uptake and carbon
dioxide removal
Components:
 [R. ventricle]
 [Pulmonary valve]
 Pulmonary trunk (de-oxygenated blood)
 R. pulmonary a.
 L. pulmonary a.
 Pulmonary veins (oxygenated blood)
 [L. atrium]
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Aortic arch
Ligamentum arteriosum
RPA
LPA
RL
PVV
LL
PT
LA
RV
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Ascending Aorta
[Begins in the L. ventricle; ends at the line across the sternal
angle/2nd rib]
[Its branches form part of the coronary circuit]
Branches:
 R. coronary a.
 Nodal branch
 R. marginal a.
 Posterior interventricular a.
 L. coronary a.
 Circumflex a.
 Anterior interventricular a.
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AA
RCA
LCA
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RCA
AA
LCA
Circumflex a.
Marginal a.
Post. Intervent a.
Ant. intervent a.
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Aortic Arch
Its branches supply:
 Upper limbs
 Neck
 Head
 Chest wall
Branches:
 Brachiocephalic trunk
 R. common carotid a.
 R. subclavian a.
 L. common carotid a.
 L. subclavian a.
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R. common carot.
R. subclavian a.
L. common carot.
Brachiocephalic
trunk
L. subclavian a.
Aortic Arch
Line/2nd rib
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Common Carotid A.
Its branches supply:
 Upper neck
 Head
Branches:
 External carotid a.
 Internal carotid a.
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Internal carotid a.
External carotid a.
(To cranial cavity)
(To facial region)
Common carotid a.
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External Carotid a.
Its branches supply:
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Upper neck
Facial region
Scalp
Meninges
Branches:
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Superior thyroid a.
Ascending pharyngeal a.
Ligual a.
Facial a.
Occipital a.
Posterior auricular a.
Maxillary a.
Superficial temporal a.
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Superficial temporal a.
Post. auricular a.
Occipital a.
Maxillary a.
Facial a.
Ligual a.
Asc. Pharyngeal a.
Sup. thyroid a.
External carotid a.
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Identify
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Internal carotid a.
Its branches supply:
 Brain
 Cranial nerves
Branches:
 Middle cerebral a.
 Ophthalmic a.
 Anterior cerebral a.
 Posterior communicating a.
22 of the vetebral arteries system]
[ICA branches anastomose with those
Anterior cerebral a.
Posterior
communicating a.
Ophthalmic a.
Middle cerebral a.
Internal carotid a.
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Subclavian a.
[Begins at or close to the aortic arch and ends at the 1st
rib]
Its branches supply:
 Brain stem
 Chest wall
 Lower neck
 Shoulder
Branches:
 Internal thoracic a.
 Vertebral a.
 Thyrocervical trunk
 Costocervical trunk
[The vertebral aa join to form the basilar a. whose branches
anastomose with those of ICA to form the arterial circle of Willis whose
branches supply the brain]
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Vetebral a.
Thyrocervical trunk
Costocervical trunk
1st rib
Axillary a.
Subclavian a
Int. thoracic a.
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Arterial Circle of Willis
Ant. communicating a
Ant. cerebral a.
Mid. cerebral a.
ICA
Post. communicating a
Post. cerebral a.
Superior cerebellar a.
Labyrinthine a.
Vetebral a.
Ant. inf. cerebellar a. - AICA
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Post. Inf. cerebellar a. - PICA
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Identify
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Axillary a.
(Extends from the 1st rib to the tendon of teres major muscle)
Its branches supply:
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Armpit area
Chest wall
Shoulder
Proximal humerus
Branches
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Highest thoracic a.
Thoraco-acromial a.
Lateral thoracic a.
Subscapular a.
Anterior humeral circumflex a.
Posterior humeral circumflex a.
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1st rib
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Ulnar a.
Axillary a.
Brachial a.
Subclavian a.
Deep brachial a.
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Teres major tendon
1. Highest thoracic a.
2. Thoraco-acromial a.
3. Lateral thoracic a.
4. Subscapular a.
5. Anterior humeral circumflex a.
6. Posterior humeral circumflex a.
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Radial a.
Brachial a.
Branches:
 Deep brachial a.
 Radial a.
 Ulnar a.
Brachial is used to measure blood pressure and
pulse.
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Ulnar a.
Brachial a.
Deep brachial a.
Radial a.
Radial artery is used to measure pulse rate at the wrist.
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Palmar
arches
Descending Thoracic aorta
[Extends from the manubriosternal line/2nd rib to the aortic
hiatus/T12 level]
Its branches supply:
 Thoracic wall
 Bronchi
 Esophagus
 Diaphragm
Branches:
 Bronchial a.
 Esophageal a.
 Posterior intercostal aa.
 Superior phrenic aa.
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Bronchial a.
Post. Intercostal aa.
Esophageal aa.
Phrenic a.
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Aortic hiatus/T12 level
Descending Abdominal
Aorta
[Extends from aortic hiatus/T12 level to L4 level]
Paired Branches:
 Inferior phrenic aa [diaphragm]
 Middle supra-renal aa. [supra-renal glands]
 Renal aa. [kidneys]
 Gonadal aa. (gonads]
 Testicular aa.
 Ovarian aa.
 Lumbar aa. [back]
 Common iliac aa. [lower limbs; pelvic cavity]
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Abdominal
Aorta
Inf. phrenic a.
Mid. Supra-renal a.
Paired
Branches
Renal a.
Lumbar aa.
Gonadal a.
Common iliac a.
Ext. iliac a.
Int. iliac a.
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Descending Abdominal
Aorta
Unpaired branches [to the digestive organs]
Branches:
 Celiac trunk [to foregut]
 Left gastric a.
 Common hepatic a.
 Splenic a.
 Superior mesenteric a. [to midgut]
 Middle colic a.
 Right colic a.
 IIiocolic a.
 Inferior mesenteric a. [to hindgut]
 Left colic a.
 Sigmoid aa.
 Superior rectal a.
 Middle sacral a.
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Abdominal
Aorta
Celiac trunk
Unpaired
Branches
Superior mesenteric a.
Inferior mesenteric a.
Middle sacral a.
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Common Iliac A.
Branches:
 External iliac a./femoral a./tibial a.
 Internal iliac a. (supplies pelvic organs including
external genitalia)
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Abdominal aorta a.
Common iliac a.
External Iliac a.
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Internal iliac a.
EJV
Int. jugular v.
Ext. jugular v.
Subclavian v.
SUBCV
Brachiocephalic v.
Brachiocephalic v.
Azygous v.
SVC
IVC
Hepatic v.
Mid. supra-renal v.
Renal v.
Lumbar vv.
Common iliac v.
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Portal System
Liver
Capillary
Bed II
G-I Tract
Capillary Bed I
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Some important organs receiving blood
from two independent sources.
1. Brain
2. Lungs
3. Liver
4. Pancreas
5. Duodenum
6. Transverse colon
7. Rectum
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THE END
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Sources
• Dr. Aziz Fall 2013 Power Point
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