Vessel Circulation and Blood Vessels PBP Summer 2014

Vessel Circulation and Blood Vessels PBP Summer 2014 Nikeshia Dunkelly-Allen nd 323@nova. edu 1

2

3

4

5

6

7

Pulmonary Circuit Function: Oxygen uptake and carbon dioxide removal Components: q [R. ventricle] q [Pulmonary valve] q Pulmonary trunk (de-oxygenated blood) q R. pulmonary a. q L. pulmonary a. q Pulmonary veins (oxygenated blood) q [L. atrium] 8

Aortic arch Ligamentum arteriosum RPA LPA RL PVV PT LA RV 9 LL

Ascending Aorta [Begins in the L. ventricle; ends at the line across the sternal angle/2 nd rib] [Its branches form part of the coronary circuit] Branches: q R. coronary a. q Nodal branch q R. marginal a. q Posterior interventricular a. q L. coronary a. q Circumflex a. q Anterior interventricular a. 10

RCA AA LCA 11

RCA AA LCA Circumflex a. Marginal a. Post. Intervent a. Ant. intervent a. 12

13

Aortic Arch Its branches supply: q Upper limbs q Neck q Head q Chest wall Branches: q Brachiocephalic trunk q R. common carotid a. q R. subclavian a. q L. common carotid a. q L. subclavian a. 14

R. common carot. R. subclavian a. L. common carot. Brachiocephalic trunk L. subclavian a. Aortic Arch Line/2 nd rib 15

16

Common Carotid A. Its branches supply: q Upper neck q Head Branches: q External carotid a. q Internal carotid a. 17

Internal carotid a. External carotid a. (To cranial cavity) (To facial region) Common carotid a. 18

External Carotid a. Its branches supply: q q Upper neck Facial region Scalp Meninges Branches: q q q q Superior thyroid a. Ascending pharyngeal a. Ligual a. Facial a. Occipital a. Posterior auricular a. Maxillary a. Superficial temporal a. 19

Superficial temporal a. Post. auricular a. Occipital a. Maxillary a. Facial a. Ligual a. Asc. Pharyngeal a. Sup. thyroid a. External carotid a. 20

4 5 3 2 1 Identify 21

Internal carotid a. Its branches supply: q Brain q Cranial nerves Branches: q Middle cerebral a. q Ophthalmic a. q Anterior cerebral a. q 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. 23

Subclavian a. [Begins at or close to the aortic arch and ends at the 1 st rib] Its branches supply: q Brain stem q Chest wall q Lower neck q Shoulder Branches: q Internal thoracic a. q Vertebral a. q Thyrocervical trunk q 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] 24

Vetebral a. Thyrocervical trunk Costocervical trunk 1 st rib Axillary a. Subclavian a Int. thoracic a. 25

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 26 Post. Inf. cerebellar a. - PICA

27

28

1 2 3 4 5 6 7 Identify 29

Axillary a. (Extends from the 1 st rib to the tendon of teres major muscle) Its branches supply: q q Armpit area Chest wall Shoulder Proximal humerus Branches q q q Highest thoracic a. Thoraco-acromial a. Lateral thoracic a. Subscapular a. Anterior humeral circumflex a. Posterior humeral circumflex a. 30

2 1 st rib 5 Ulnar a. Axillary a. Brachial a. Subclavian a. 1 3 4 Deep brachial a. 6 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. 31 Radial a.

Brachial a. Branches: q Deep brachial a. q Radial a. q Ulnar a. Brachial is used to measure blood pressure and pulse. 32

Ulnar a. Brachial a. Deep brachial a. Radial artery is used to measure pulse rate at the wrist. 33 Palmar arches

Descending Thoracic aorta [Extends from the manubriosternal line/2 nd rib to the aortic hiatus/T 12 level] Its branches supply: q Thoracic wall q Bronchi q Esophagus q Diaphragm Branches: q Bronchial a. q Esophageal a. q Posterior intercostal aa. q Superior phrenic aa. 34

Bronchial a. Post. Intercostal aa. Esophageal aa. Phrenic a. 35 Aortic hiatus/T 12 level

Descending Abdominal Aorta [Extends from aortic hiatus/T 12 level to L 4 level] Paired Branches: q Inferior phrenic aa [diaphragm] q Middle supra-renal aa. [supra-renal glands] q Renal aa. [kidneys] q Gonadal aa. (gonads] q Testicular aa. q Ovarian aa. q Lumbar aa. [back] q Common iliac aa. [lower limbs; pelvic cavity] 36

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. 37

Descending Abdominal Aorta Unpaired branches [to the digestive organs] Branches: q Celiac trunk [to foregut] q Left gastric a. q Common hepatic a. q Splenic a. q Superior mesenteric a. [to midgut] q Middle colic a. q Right colic a. q IIiocolic a. q Inferior mesenteric a. [to hindgut] q Left colic a. q Sigmoid aa. q Superior rectal a. q Middle sacral a. 38

Abdominal Aorta Celiac trunk Unpaired Branches Superior mesenteric a. Inferior mesenteric a. Middle sacral a. 39

Common Iliac A. Branches: q External iliac a. /femoral a. /tibial a. q Internal iliac a. (supplies pelvic organs including external genitalia) 40

Abdominal aorta a. Common iliac a. External Iliac a. 41 Internal iliac a.

EJV Int. jugular v. Ext. jugular v. Subclavian v. SUBCV Brachiocephalic v. Azygous v. SVC IVC Hepatic v. Mid. supra-renal v. Renal v. Lumbar vv. Common iliac v. 42

Portal System Liver Capillary Bed II G-I Tract Capillary Bed I 43

Some important organs receiving blood from two independent sources. 1. Brain 2. Lungs 3. Liver 4. Pancreas 5. Duodenum 6. Transverse colon 7. Rectum 44

THE END 45

Sources • Dr. Aziz Fall 2013 Power Point 46