THRB.3 Flashcards
Left Muscular Band
Trabeculae septomarginalis sinistra
5
Phrenicopericardiac Ligament (Ca)
3
Sternopericardiac Ligaments (Eq/Ru)
10
Transverse Pericardial Sinus
Formed by the Pericardium
What is the ratio of Subsinous Interventricular Branches (L:R) in Equine?
2:2
What is the ratio of Subsinous Interventricular Branches (L:R) in Canines?
3:1
What is the ratio of Subsinous Interventricular Branches (L:R) in Ruminants?
3:1
Which species posess a ‘bullet-shaped’ heart?
Pig and Horse
Is this a left or right type heart?
Right-Type
[Equine]
Paraconal Interventricular Branch
Septal Branch
Which species posess a ‘Box-Shaped’ heart?
Ruminant and Canine
What is a ‘Right-type’ heart?
If the Interventricular Subsinous Branch comes from the Right Circumflex Branch
Which species have a ‘Right-type’ heart?
Equine and Pig
Which species have a ‘Left-Type’ heart?
Canine and Ruminant
Bundle of His
Left Crus
Right Crus
Purkinje Fibres
Left Ventricle
Sinoatrial Node
Right Atrium
Name and Function
Atrioventricular Node
Amplifies impulses from the sinoatrial node
Cranial Vena Cava
Internodal Bundles
Name given to the left and right crus
The Tawara Bundles
Where does the bundle of His pass through?
The Ring of His
The heart tube develops from…
Progenitor heart cells
Where do stem cells differentiate during heart development?
Blood islands
Internal cells of blood islands are…
Progenitors
External cells of blood islands…
Develop into vessels
What is shown?
Formation of the cardiogenic field and dorsal aortae
What pushes the developing heart into the thorax?
- Folding
- Development of the brain
Dorsal aortae
What is shown?
Merging of the ventral aorta + pulmonary trunk
Formation of the heart tube
Third aortic arch develops into…
Common carotid artery
Sinus venosus
Fourth aortic arches fuse to form…
Arcus aortae
Sixth aortic arches fuse to form…
Truncus pulmonalis
L + R Pulmonary arteries
