Blood Supply of the Back Flashcards
in the thoracic region, arteries are…
dorsal branches of posterior intercostal arteries
In the lumbar region, arteries are…
dorsal branches of the four paired lumbar arteries
posterior intercostal arteries (except the first 2) and all lumbar arteries are branches of the ____
descending aorta
circulatory system is composed of…
arteries
veins
lymph vessels & nodes
heart
right side of heart receives ____, and sends ____
receives de-oxygenated blood
sends deoxygenated blood to lungs for oxygenation
left side of heart receives ____, and sends ____
receives oxygenated blood from lungs
sends it to rest of body
Pulmonary circulation location
from the right ventricle to the lungs to the left atrium
Systemic circulation location
from the left ventricle to the body to the right atrium
Define anastomosis
a connection between blood channels
(i.e., arteries to arterioles, arterioles to capillaries)
(may occur between larger venous or arterial channels)
where does exchange between blood & cells of body tissues occur?
capillaries
Capillaries connect ____ on arterial side to ____ on venous side
arterioles
venules
venules drain to…
larger veins
Collateral circulation
an alternative route of circulation to a body part created by anastomoses
(of arterial or venous channels)
collateral circulation is frequent around…
joints of the limbs
Collateral vessels
Anastomostic vessels proceeding from superior to inferior
Recurrent vessels
Anastomostic vessels proceeding from inferior to superior
Ascending aorta branches
Right coronary artery, left coronary artery
Arch of aorta branches
Brachiocephalic trunk, left common carotid artery, left subclavian artery
arch of the aorta
Brachiocephalic trunk branches
Right subclavian artery, right common carotid artery
arch of the aorta
Subclavian artery branches
- Vertebral artery
- thyrocervical trunk (with transverse cervical artery - superficial & deep branches),
- costocervical trunk (to highest intercostal a., & deep cervical a.)
- internal thoracic artery
arch of the aorta
Common carotid artery branches
Internal carotid artery
External carotid artery (->Occipital artery)
Descending thoracic aorta contains…
posterior intercostal arteries
Internal thoracic artery contains…
anterior intercostal arteries
Descending abdominal aorta contains…
lumbar arteries
Venous return to the heart is via the…
vena cava (superior & inferior)
what veins form the superior vena cava?
brachiocephalic veins
lymph is very similar to ____
blood plasma
(drains to blood circulatory system)
afferent lymph vessels
drain lymph to nodes
efferent lymph vessels
drain lymph from nodes to larger lymph channels
Thoracic duct primary function
major lymph channel of the body
Thoracic duct receives drainage from…
whole body except R arm & R side of head/neck
left side of head and neck
left side of thorax
left arm
abdomen
pelvis and perineum
both legs
