Vena Cava Cranialis and - Venous BS of the THORAX Flashcards
Side?
RIGHT SIDE
VENA CAVA CRANIALIS
Main Branches
- V. Azygos Dextra *
- V. Costocervicalis dextra*
- V. Thoracica interna*
- V. BRACHIOCEPHALLICA*
- V. JUGULARIS EXTERNA
VENA CAVA CRANIALIS
5. V. Jugularis externa
- V. Jugularis externa
Recieves blood from:
- V. Maxillaris
- Tr. Linguofacialis
- V. Jugularis Interna
Drain into:
- Brachiocephallica –> then into V.Cava cranialis
VENA CAVA CRANIALIS
4. V. BRACHIOCEPHALLICA* Recieves blood from: - V. Sublavia sinistra - V. Jugularis Externa et interna - V. Subclavia dextra
Drains into V. Cava Cranialis
- V. Thoracica interna*
Drains into V. Cava Cranialis
- V. Costocervicalis Dextra
2. V. Costocervicalis Dextra Recieving blood from: - V. Vertebralis - V. Scapularis Dorsalis - V. Cervicalis Profunda - v. Vertebralis thoracica - Rr. Intercostalis dorsalis
Drains into:
V. Cava cranialis
- V. Azygos Dextra *
Recieves blood from :
- Vv. Intercostalis dorsalis
- V. Bronchooesophagea
Drains into:
V. Cava cranialis
Interspecial Differenses
EQ
- Vv. Jugularis externa
Drains into: - Truncus Jugularis
VENA CAVA CRANIALIS: Collecting blood directly from: 1. Truncus Jugularis 2. V. Subclavia 3. V. Thoracica interna 4. V. Vertebralis 5. V. Azygos deztra with vv. intercostalis
Interspecial Differenses
Ca
V.Jugularis and V.Subclavia drains into
V. Brachiocephallica –> V.cava.cran
Aortic arch branches:
● Brachiocephalic trunk
● Subclavia sinistra
Thoracic aorta Branches:
- ● Aa. Intercostales dorsales:
supply wall of thorax
○ Rami spinales: branches to spinal cord - ● A. Broncho-oesophagea
○ Bronchial branches
○ Oesophageal branches - ● A. Costoabdominalis:
supplies abdominal wall - ● Eq: A. Phrenica cranialis:
supplies diaphragm
VENOUS Bloodsupply of the thorax
Cranial vena cava
● V. Jugularis (all domestic mammals except eq and goat have 2 pairs of jugular
veins, internal and external)
● V. Subclavia sin/dex
● V. Broncho-oesophagea
● Eq, ca, fe: right azygos vein
● The cranial vena cava passes through the cranial mediastinum to the right of the
brachiocephalic trunk and opens into the right atrium