RABBIT CIRCULATORY SYSTEM Flashcards
Circulatory system Function
Transport of nutrients, gases, hormones and metabolic wastes
Highly branched, organized network of vessels that spreads throughout the entire organism
Circulatory system
Circulatory system pathway
Heart → Arteries → Organs → Veins → Heart
tend to be paired, especially when the organs the supply or drain are paired
Arteries and veins
A _________ often undergoes several name changes along its length as it passes through different body regions.
continuous vessel
HOMOLOGOUS BLOOD VESSELS IN RABBITS AND HUMANS
RABBIT VESSEL NAME
Cranial mesenteric artery and vein
Caudal mesenteric artery and vein
Cranial vena cavae
Caudal vena cava
HUMAN VESSEL NAME
Superior mesenteric artery and vein
Inferior mesenteric artery and vein
Superior vena cava
Inferior vena cava
Vessels transporting oxygenated blood depicted in red and vessels transporting deoxygenated blood depicted in blue
CIRCULATORY PATHWAY
typically have a thicker tunica media and smaller lumen
arteries
arger lumen and the thickest layer is the tunica adventitia
veins
Thin membranous membrane, protective sac which contains a small amount of lubricating fluid to protect the heart and cushion it movements
PERICARDIUM
Endocrine gland, partially obscures the heart anteriorly
THYMUS
CIRCUIT From heart to lungs and back
PULMONARY CIRCUIT
CIRCUIT From the heart to the rest of the body and back
SYSTEMIC CIRCUIT
4 CHAMBERS OF THE HEART
RIGHT VENTRICLE/ LEFT VENTRICLE
RIGHT AURICLE/ LEFT AURICLE
Pump blood out of the heart to the lungs and to the rest of the body respectively
Separated by interventricular sulcus
RIGHT VENTRICLE/ LEFT VENTRICLE
Receive blood from the body and lungs and pass it to the ventricles
RIGHT AURICLE/ LEFT AURICLE
small outer, flap-like region that covers a portion of the atrial chamber
Auricle
entire open space inside that collects blood
Atrium
Bring deoxygenated blood to the right atrium from the upper and lower portions of the body.
Cranial and Caudal vena cava
2 cranial vena cava
Right and left cranial vena cava that do not fuse together
drain the capillaries of the heart muscles
Coronary vessels
Emanates from the right ventricle
Channels blood from the right ventricle through the right and left pulmonary arteries to the lung
Pulmonary trunk
Large, thick walled vessel leaving the heart from the cranial aspect of the left ventricle, and notice the arch it makes to the left as it descends caudally
Aorta
Vessels that carry deoxygenated blood from the right ventricle to the lungs and return oxygenated blood to the left atrium of the heart
PULMONARY ARTERIES AND VEINS
Courses along the dorsal surface of the thoracic cavity and joins the right cranial vena cava near the heart
Drains blood from the dorsal tissues of the rib cage
AZYGOUS VEIN
BRANCHES OF THE SUBCLAVIAN ARTERIES
- Costocervical
- Axillary
- Internal thoracic
Arteries of the Neck Region
- Internal and External Carotid arteries
- Cranial thyroid artery
- Lingual artery
- Facial artery