Blood Supply and Venous Drainage Flashcards
Pulmonary Circulation Supply (7 Components)
- Superior and inferior vena cava
- Right atrium
- Tricuspid valve
- Right Ventricle
- Pulmonary valve
- Pulmonary trunk
- Pulmonary arteries
*deoxygenated blood from heart to lungs
Systemic Circulation Supply (6 Components)
- Pulmonary veins
- Left atrium
- Bicuspid valve
- Left ventricle
- Aortic valve
- Aorta
*oxygenated blood from lungs back to heart and out to body
Coronary Circulation: Systole
Aortic valve opens
-L and R coronary arteries blocked
Coronary Circulation: Diastole
Aortic valve closes
-Coronary perfusion occurs (coronary arteries are open/not blocked)
Coronary Arteries and Veins (7, 3 paired)
- Left coronary artery
- Circumflex artery
- Left anterior descending artery -> great cardiac vein
- Right coronary artery -> small cardiac vein
- Posterior descending artery -> middle cardiac vein
- Marginal artery
- *coronary sinus- veins drain into (lies in left atrioventricular groove)
Head and Neck Arterial Supply (8)
- Aortic arch
- Brachiocephalic trunk
- Left common carotid artery
- Right common carotid artery (off of brachiocephalic)
- Carotid sinus (off of left common carotid artery)
- Internal carotid artery (supplies brain, continuous of carotid sinus and more posterior)
- External carotid artery (supplies head and neck, continuous of carotid sinus and more anterior)
- Vertebral artery (off left subclavian a.)
External Carotid Artery Branches (8)
- Superior thyroid artery
- Lingual artery
- Facial artery
- Ascending pharyngeal artery
- Occipital artery
- Maxillary artery
- Posterior auricular artery
- Superficial temporal artery
*Remembering all of them (not order): “Some Anatomists Like Freaking Out Poor Medical Students”
Upper Limb Arterial Supply (7)
- Subclavian artery (becomes axillary at inf. border of 1st rib)
- Axillary artery (becomes brachial artery at inf. border of teres major)
- Brachial artery
- Ulnar artery
- Radial artery
- Superficial palmar arch
- Digital branches
Thorax Arterial Supply (5)
- Aortic arch
- Descending (thoracic) aorta
- Posterior intercostal arteries
- Internal thoracic arteries
- Anterior intercostal arteries
Venous Drainage (SVC); 5 Head/Neck, 6 Upper Limb, 4 Thorax
Head and Neck:
1. Facial vein
2. Internal jugular vein
3. External jugular vein
4. Anterior jugular vein
5. Brachiocephalic vein
*down to SVC
Upper Limb:
1. Subclavian vein
2. Axillary vein
3. Brachial vein
4. Cephalic vein
5. Basilic vein
6. Median cubital vein
Thorax:
1. Hemiazygos vein
2. Posterior intercostal veins
3. Acessory hemiazygous vein
4. Azygous vein
*up to SVC
Abdomen Arterial Supply (3 Unpaired Main Branches off Abdominal Aorta)
- Abdominal aorta (goes through aortic hiatus)
Branches:
1. Celiac trunk
2. Superior mesenteric artery (SMA)
3. Inferior mesenteric artery (IMA)
- Celiac Trunk Branches (3)
- Common hepatic artery (liver)
- Splenic artery (spleen and branches into pancreas)
- Left gastric artery (lesser curvature of stomach)
Common Hepatic Artery Branches (6)
*off celiac trunk
- Gastroduodenal artery
- Right gastric artery (stomach- lesser curvature)
- Proper hepatic artery (liver)
- Cystic artery (gallbladder)
*2 branches off gastroduodenal:
1.1 Superior pancreaticduodenal arteries (pancreas and duodenum)
1.2 Right gastro-omental artery (greater curvature of stomach)
*common hepatic on ride side (b/c liver on right)= has “right” branches
Splenic Artery Branches (3)
*off celiac trunk
- Pancreatic branches (pancreas)
- Left gastro-omental artery (greater curvature of stomach)
- Short gastric (fundus)
- Superior Mesenteric Artery- SMA- Branches (6)
- Middle colic artery (transverse colon)
- Inferior pancreaticduodenal artery (pancreas, duodenum)
- Right colic artery (ascending colon)
- Jejunal arteries (jejunum) which give off arcades -> vasa recta
- Ileocolic artery (cecum)
- Ileal arteries (ileum) which give off arcades -> vasa recta *more arcades than jejunal
*superior to inferior
