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Trave a molecule of glucose from...?
From it's point of absorption into the capillaries of the small intestine to the renal vein.
1 Answer
- 8 years agoFavorite Answer
I'm assuming the first word is "Trace"? as in pathway?
If so-
An apical glucose transporter moves glucose into intestinal epithelial cell. It diffuses across the cytoplasm. A different transporter moves it out of the epithelial cell, across the basolateral membrane, into the extracellular fluid.
The glucose takes one of two routes.
1. It is moved into the lymphatic system by movement of the extracellular fluid --> lymph ducts --> lymph nodes --> lymph ducts --> thoracic duct (main lymph duct through the chest) --> left subclavian vein --> superior vena cava --> right atrium of the heart; or
2. It diffuses into a capillary --> venule --> vein --> hepatic portal vein --> hepatic sinusoids --> venule --> vein --> hepatic vein --> inferior vena cava --> right atrium.
Note that regardless of the route from the intestine, the glucose is now in the same place, the right atrium of the heart.
Right atrium --> right ventricle --> pulmonary artery --> arteries --> arterioles --> lung capillaries --> venules --> veins --> pulmonary vein --> left atrium --> left ventricle --> ascending aorta --> descending aorta --> renal artery --> arteries --> afferent arteriole --> glomerular capillaries --> though the basal lamina of the fenestrae --> capsular space --> PCL.
Hope this helps