Flashcards in Cardiovascular System Deck (207)
What are the boundaries of the thorax cranially, dorsally, laterally, ventrally snd caudally?
Cranial- thoraxic inlet
Dorsally- thoracic vertebrae
How many thoracic vertebrae are there?
What do ribs articulate with?
What is the dorsal 2/3 and ventral 1/3 of ribs made of and what is the junction called?
dorsal 2/3- bone
ventral 1/3- cartilage
How many ribs form the costal arch?
First 9 attach to the sternum, the next 3 form the costal arch the last is a floating rib
How many bones make up the sternum?
What is the name of the first and last sternebrae?
first is the manubrium the last is the xiphoid process
What are the lobes of the left lung?
Cranial and caudal
What are the lobes of the right lung?
Cranial, middle, caudal and accessory
What lobe does a horse lack that most other domestic species have?
What lines the the thorax?
What are the two parts of the pleura?
visceral and parietal
What does the visceral pleura cover?
What makes up the parietal pleura?
Medastinal, costal and diaphragmatic pleura
What is there between the visceral and parietal pleura?
Potential space filled with serous fluid eliminating friction
What part of the heart sits dorsally and cranially?
What part of the heart is ventral and caudal?
In what direction does the heart lie?
Caudoventrally with slight left deviation to apex
What covers the outside of the heart?
The pericardium (visceral and parietal)
What are the layers to the body of the heart?
Inner layer of endocardium, muscular myocardium, outer epicardium
What is the name of the valve between the left atrium and ventricle?
atrioventricular (bicuspid/mitral) valve
What is the name of the valve between the right ventricle and atrium?
atrioventricular (tricuspid) valve
What septettes the two atrium?
The interatrial septum
What separates the two ventricles?
inter ventricular septum
What separates the right ventricle and pulmonary artery?
What separates the left ventricle and aorta?
What are the additional out pouches on the atriums called?
Appendage or auricle
What part of the heart receives oxygenated blood and where from?
Left atrium from pulmonary vein
What receives deoxygenated blood in the heart and by which vein?
right atrium via the venue cavae