7 - Arteries Of The Dog Flashcards
What is the main systemic arterial trunk?
aorta
• ARISES from left ventricle.
• ENDS by becoming aortic arch after giving off coronary arteries.
Ascending aorta
• BEGINS after origin of coronary arteries
• ENDS when vessel comes into contact with vertebral column.
Aortic arch
• ARISES as continuation of aortic arch.
• ENDS by becoming abdominal aorta at aortic hiatus.
Descending aorta
• ARISES as continuation of thoracic aorta at aortic hiatus.
Abdominal Aorta
Abdominal Aorta ends at what lumbar vertebrae?
7th lumbar vertebra
Abdominal Aorta ends at the 7th lumbar vertebra by dividing into?
two external iliacs
• ARISES from aortic arch in median plane and passes to thoracic inlet ventral to trachea.
Brachiocephalic Trunk
Brachiocephalic Trunk ends by dividing into?
right subclavian and right common carotid
• ARISE from brachiocephalic. In neck, right lies on trachea, left on esophagus.
• ENDS Both vessels ends under wing of atlas.
Common Carotid(Right and left common carotids)
Right common carotids lies on what organ?
trachea
Left common carotids left on what organ?
esophagus
This branch of common carotid has cranial (largest and the only constantly present) and caudal (not constant in origin)
thyroids
• ARISES as direct continuation of common carotid.
• ENDS by dividing into superficial temporal and internal maxillary behind postglenoid process.
External Carotid
Maxillary artery that exits mental foramina
Inferior alveolar
Maxillary artery that enters caudal alar foramen
Pterygoid region
• ARISES from common carotid behind occipitomandibular muscle. Passes to carotid canal through foramen lacerum and enters through cranial cavity.
Internal Carotid
What subclavian artery ARISES from aortic arch
Left Subclavian
What subclavian artery ARISES from brachiocephalic
Right subclavian
• Left ARISES from aortic arch.
• Right ARISES from brachiocephalic.
• ENDS at level of first rib by becoming axillary
Subclavian
What branch of subclavian artery primary conduit of blood to the brain, also supply skin and musculature of neck; caudally, branches anastomose with ventral spinal a, cranially with basilar a
vertebral
• ARISES from subclavian at level of 1st rib.
• ENDS by dividing into musculo-phrenic and cranial epigastric. The latter anastomoses with caudal epigastric from pudendo-epigastric trunk.
Internal Thoracic
What artery has these branches:
• External thoracic artery
• Lateral thoracic artery
• Subscapular artery
Axillary
What artery has these branches:
• Deep brachial
• Bicipital artery
• Collateral ulnar
• Superficial brachial artery
• Transverse cubital artery
• Common interosseous artery
Brachial
What artery has these branches:
• Radial
• Deep antebrachial
Median
What arteries has these general regions:
• Metacarpal region
• Digital region
Arteries of the Manus
• ARISES from abdominal aorta between lumbar parts of diaphragm.
Celiac
ARISES as termination of hepatic.
• ENDS by dividing into:
• 1. Right gastro-epiploic
• 2. cranial pancreatico-duodenal
GASTRO-DUODENAL
•ARISES from abdominal aorta at L1 or L2 (root of mesentery).
•ENDS by dividing into;-
• Main trunk for about 15 intestinals,
Cranial Mesenteric
• ARISES from abdominal aorta opposite 5th or 6th lumbar vertebra.
• ENDS by dividing into:
• 1. Left colic
• 2. cranial rectal (Cranial hemorrhoidal)
Caudal Mesenteric
• Adrenal (suprarenal) – cranial and caudal
RENAL
• ARISES lumbar vertebra. as terminal branch of abdominal aorta on level with 6th
• ENDS on level with pectin of pubis by becoming femoral.
External Iliac
• ARISES from the external iliac.
• ENDS by dividing into:
• 1. Caudal epigastric,
• 2. External pudendal
• 3. caudal superficial epigastric
PUDENDO – EPIGASTRIC TRUNK
• ARISES as continuation of external iliac in femoral triangle (site for pulse taking in dogs).
• ENDS by becoming popliteal between heads of gastrocnemius
Femoral
• ARISES as terminal branch of abdominal aorta
• ENDS parietal - on reaching pelvic cavity by dividing into visceral and trunks.
Internal Iliac
• Represent visceral trunk of internal iliac
INTERNAL PUDENDAL
•ARISES from terminal aorta in angle formed by the two internal Iliacs.
•ENDS by traversing mid-ventral line of the sacrum into the tail.
Median Sacral
direct continuation of median sacral
Median caudal a
Dorsal and ventral lateral caudal aa – give rise to segmental arteries collectively known as?
ventrolateral caudal artery
arise from cranial gluteal a
lateral caudal aa
• Drains all blood from the head, brain, face, cervical to jugular vein and the anterior part of the right atrium
Cranial Vena Cava
• DRAINS greater part of chest wall.
• ARISES as unpaired vessel by union of 1st and 2nd Lumbar veins and passes into thorax along right Vertebral bodies.
• ENDS by curving towards heart at 6th Vertebra and opening into cranial vena cava or right atrium.
Azygos Vein
• DRAINS almost all blood from abdomen, pelvis and pelvic limbs. Formed by Confluence of right and left common iliac veins at 7th lumbar vertebra.
• OPEN into posterior part of right Atrium
Caudal Vena Cava
•DRAINS intestines, stomach, spleen and Pancreas. Formed ventral to and to the right of origin of coeliac artery by confluence of two main venous trunks comprising:
• Splenic and gastric veins,
• Cranial and caudal mesenteric veins.
•ENDS by entering the porta of the liver
Portal Vein
satellite veins of named arteries
Deep veins
subcutaneous vv often accessible to venipuncture
Superficial veins
