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Heart (final list)
exam 3
35
Veterinary Medicine
Post-Graduate
12/02/2013

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Cards

Term
Pericardium
Definition
- fibrous covering
- includes inner parietal serous pericardium, middle fibrous pericardium, and outer pericardial mediastinal pleura
Term
Pericardial cavity
Definition
- Between parietal and visceral serous pericardium
- contains pericardial fluid
Term
Visceral serous pericardium (epicardium)
Definition
- tightly adheres to heart
- continuous w/ parietal layer at base of heart
Term
Phrenicopericardial ligament
Definition
- continuation of fibrous pericardium to the sternum and diaphragm
- on ventral mediastinum
- Also contains fait
Term
Pericardial sac
Definition
- all spericardial structures together
Term
Base
Definition
- where great vessels attach
Term
apex
Definition
- point of the heart, faces ventral, caudal to the left lobe of teh lung
Term
auricualr surface
Definition
- surface facing the left thoracic wall
Term
Atrial surface
Definition
- faces right thoracic wall
Term
Coronary groove
Definition
- contains coronary vessles and fat
- around base of the heart between the atria and ventricles
Term
Interventricular grooves
Definition
- Superficial separations of the ventricls
Term
Paraconal interventricular groove
Definition
- contains paraconal interventricualr branch of left coronary artery
- transverses auricular surface of the heart, starting at base
of pulmonary trunk and running by the conus arteriosus
Term
Subsinuosal interventricular groove
Definition
- contains terminal branch of the left coronary artery
- caudal aspect of atrial surface ventral to coronary sinus
Term
RIght atrium
Definition
- receives blood from systemic veins and most of the blood from the heart
- dorsocranial to the right ventricle
- two parts, the right auricle and sinus venarum
Term
sinus venarum
Definition
- non-auricle portion of right atrium
- 4 openings.. causal vena cava, coronary sinus, cranial vena cava, and atrioventricular orifice
Term
Right auricle
Definition
- appendage of the right atrium
- contains interlacing muscular bands called pectinate muscles (lined w/ endocardium)
Term
- coronary sinus
Definition
- returns blood supplied to the heart via left coronary artery
- dilated terminal end of great cardia vein, begins at paraconal interventricular groove
Term
right atrioventricular orifice
Definition
- two main valves: parietal and septal cusps as well as subsidairy leaflets on each flap
Term
Intervenous tubercle
Definition
- splash zone
Term
Fossa ovalis
Definition
- opposite of foramen ovale in left atrium.
- small sealed sinus where blood was shunted in the fetus
Term
ENdocardium
Definition
- lines inside of heart compartment
Term
Right AV vlave
Definition
atrioventricular
Term
Right ventricle
Definition
?
Term
Chordae tendineae
Definition
- finger like projections that attach valves to the papillary muscles
Term
Papillary muscles
Definition
- function to open and close valves
Term
Traveculae carneae
Definition
- muscle irregularities in the ventricular walls
Term
trabecula spetomarginalis
Definition
(marginal band)
- muscular strand that extends across the lumen of the ventricle from the septal to parietal wall via a papillary muscle
Term
Conus arteriosus
Definition
- termination of the right ventricle that gives rise to the pulmonary trunk
- left craniodorsal aspect of the heart
- funnel shaped
Term
Pulmonary trunk
Definition
- bifurcates into right and left pulmonary arteries
- one vein for each lung lobe, and one artery for each side
Term
Pulmonary valve
Definition
- small fibrous nodule on free edge of each cusp... don't mistake for pathology
Term
Left atrium
Definition
- dorsocaudal part of base of heart dorsal to left ventricle
Term
Left ventricle
Definition
- much more muscular than other compartments
Term
Ligamentum arteriosum
Definition
- in fetus, shunted directly from right to left atrium
- fibrous connection between pulmonary trunk and aorta
Term
aortic vlave
Definition
??
Term
great cardiac vein
Definition
- returns blood supplied to the heart via the left coronary artery
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