Lab 10- Cardiovascular System

Right Atrium

Receives venous blood from cranial and caudal vena cava, azygous vein and coronary sinus

Intervenous tubercle

Directs blood to AV valve

Fossa ovalis

Fetal shunt remnant

Auricle

Contains pectinate muscles

Left atrium

Receives oxygenated blood from pulmonary veins and has an auricle with pectinate muscles

Right ventricle

Pumps blood to pulmonary trunk then to pulmonary arteries

Chordae tendineae

Prevent valve prolapse

Moderator Band

Conductive support

Left ventricle

Pumps blood into aorta and has a thicker wall

Septa

Interatrial and interventricular septum

Right AV valve

Tricuspid

Left AV valve

Mitral/bicuspid

Pulmonic valve

Right ventricle to pulmonary trunk

Aortic valve

Left ventricle to aorta

Ligamentum arteriosum

Remnant of ductus arteriosus and connects pulmonary trunk to aorta

Brachiocephalic trunk

Right subclavian and right and left common carotids

Left subclavian artery

Internal thoracic, vertebral, costocervical trunk and continues as axillary artery

Thoracic artery

intercostal arteries and the bronchoesophageal artery

Celiac artery

Stomach, liver and spleen

Cranial mesenteric artery

Most of the intestine

Renal arteries

Kidneys

Caudal mesenteric artery

Intestine

Abdominal aorta

Lumbar and gonadal arteries and deep circumflex ilial

External iliac arteries

Hindlimbs

Internal iliac arteries

Pelvic organs

Median Sacral artery

Tail