Systemic circulation

Ascending aorta R & L coronary artery

Coronary Circulation: Veins Figure 20.9a, b

Thoracic aorta Intercostals aa. Bronchial aa. Esophageal aa.

Abdominal Aorta & Branches Continuation of thoracic aorta Begins T12 where it pierces the diaphragm Ends L4 where divides into common iliacs Situated on posterior abdominal wall, left of midline

Subphrenic T12 Celiac trunk L. gastric a. Splenic a. Common hepatic a. Superior mesenteric a. Renal aa. (R. & L.) Gonadal aa. (R. & L.) Ovarian aa. Testicular aa. Lumbar aa. Inferior mesenteric a. Common iliac aa. (R. & L.) Internal iliac a. External iliac a

Figure 18.21c

Superior mesenteric Inferior mesenteric

Arteries to the Neck, Head, and Brain subclavian artery : Vertebral artery Thyrocervical arteries Cerebral arterial circle (Circle of Willis)

subclavian artery : Vertebral artery Thyrocervical arteries Cerebral arterial circle (Circle of Willis)

External carotid artery Neck Pharynx Esophagus Larynx Mandible face

Arteries of Upper Limb and Shoulder

Lower limb arteries

Figure 18.22b, c

Arteries of Lower Limb

Gross Anatomy of Blood Vessels

Systemic Circulation: Veins Return blood from body to right atrium Major veins Coronary sinus (heart) Superior vena cava (head, neck, thorax, upper limbs) Inferior vena cava (abdomen, pelvis, lower limbs) Types of veins Superficial Deep sinuses

External jugular veins Internal jugular veins Brachiocephalic veins

SVC

Veins from Upper Limb and Shoulder Deep veins radial vein ulnar vein brachial vein axillary vein Superficial network basilic cephalic Median vein

Veins from Lower Limb and Pelvis Deep veins: anterior and posterior tibial veins popliteal vein femoral vein external iliac vein Superficial veins: Small saphenous Great saphenous (longest vein in the body – medial side of leg and thigh) Pelvic region: internal iliac vein Internal iliac artery + External iliac artery= Common iliac arteries

Systemic veins (IVC) Veins derange to IVC 1- renal vein 2- lumbar vein 3- Adrenal vein 4- gonadal vein 5- Inferior phernic vein

The Vein Of Thorax The azygos veins The hemiazygos vein The accessory hemiazygos vein

Systemic veins (SVC)