Thorax Blood supply

Question 1

follow blood from heart to left/right anterior thoracic wall

Answer 1

left:
left ventricle -> ascending aorta -> aortic arch -> left subclavian -> internal thoracic artery -> 1-11 (whichever) anterior intercostal artery

right:
left ventricle -> ascending aorta -> aortic arch -> brachiocephalic trunk -> right subclavian -> internal thoracic artery -> 1-11 (whichever) anterior intercostal artery

Question 2

follow blood from heart to left/right posterior thoracic wall and to spinal cord

Answer 2

left ventricle -> ascending aorta -> aortic arch -> thoracic aorta -> intercostals (paired and segmental)

Question 3

follow blood from heart to viscera with multiple unpaired arteries

Answer 3

left ventricle -> ascending aorta -> aortic arch -> thoracic aorta ->

(bronchials- resp tract , pericardials, esophageals, mediastinals)

Question 4

follow blood from heart to viscera with paired arteries

Answer 4

left ventricle -> ascending aorta -> aortic arch -> thoracic aorta -> superior phrenics (diaphram)

all others :
left ventricle -> ascending aorta -> aortic arch -> thoracic aorta -> abdoinal aorta ->
(inferior phrenics -diaphram and inferior of esophagus, suprarenals-suprarenal glands, renals - kidneys, gonadals -testes and ovaries)

Question 5

follow blood to abdominal wall

Answer 5

left ventricle -> ascending aorta -> aortic arch -> thoracic aorta -> abdominal aorta -> lumbars (paired, segmental) - vertebrae, spinal cord and abdominal wall

Question 6

follow blood from heart to viscera with unpaired single arteries

Answer 6

left ventricle -> ascending aorta -> aortic arch -> thoracic aorta -> abdominal aorta -> celpiac trunk ->
(left gastric-stomach and part of esophagus, splenic-spleen stomach and pancreas, common hepatic-liver, gallbladder, stomach, duodenum, pancreas)

left ventricle -> ascending aorta -> aortic arch -> thoracic aorta -> abdominal aorta ->
(superior mesenteric - pancreas, small intestine, appendix, first two thirds of large intestine, inferior mesenteric - last third of large intestine)

Question 7

follow blood from thoracic wall to heart

Answer 7

RIGHT
right intercostal veins and esophageal veins -> azygous veins -> superior vena cava -> right atrium

LEFT
left intercostal veins and esophageal veins -> hemiazygous vein -> brachiocephalic vein -> superior vena cava -> right atrium

Question 8

follow blood from diaphram to heart

Answer 8

brachiocephalic and azygous veins -> superior vena cava

Question 9

blood supply to atria

Answer 9

left :
LCA-> atrial branch of LCA

right:
RCA-> atrial branch of RCA

Question 10

blood supply to ventricles

anterior/posterior , right left

Answer 10

LEFT, anterior :
LCA-> diagonal branch of LCA
LCA-> anterior interventricular branch of LCA

LEFT, posterior: LCA-> circumflex branch of LCA-> posterior left ventricular branch
RCA-> posterior interventricular branch of RCA
LCA-> circumflex branch of LCA -> marginal branch of LCA

RIGHT:, Anterior
RCA-> marginal branch of RCA
RCA-> anterior cardiac branches

LEFT, Posterior
RCA-> posterior interventricular branch of RCA
RCA-> right marginal branch of RCA

Question 11

venous return from ventricles

anterior/posterior, right and left

Answer 11

LEFT, posterior:

great cardiac vein -> coronary sinus-> right atrium

posterior vein of left ventricle -> right cardiac vein -> coronary sinus-> right atrium

Middle cardiac vein -> coronary sinus -> right atrium

LEFT, anterior :
great cardiac vein -> coronary sinus-> right atrium

RIGHT, posterior:
middle cardiac vein -> coronary sinus -> right atrium
small cardiac vein -> coronary sinus -> right atrium

RIGHT, anterior:
anterior cardiac veins-> right atrium
Great cardiac vein -> coronary sinus -> right atrium

Question 12

venous return from left and right atria

Answer 12

right:
small cardiac vein -> coronary sinus -> rgiht atrium

left:
great cardiac vein -> coronary sinus -> right atrium