What is the name of the tiny intrarenal branches that arise from the interlobar arteries at right angles and course above the renal pyramids?

Venography shows a clot in the venous system as:

Which is a neurological symptom related to atherosclerotic disease in the posterior circulation?

A patient presents to your diagnostic facility with a history of left amaurosis fugax.  Your carotid duplex study yields the following information.  How might this be interpreted?  

Which medications are typically prescribed to someone who is diagnosed with a DVT?

What is number #1 pointing to?

A patient presents to your diagnostic facility with a history of left amaurosis fugax.  Your carotid duplex study yields the following information.  How might this be interpreted?  

What is used as the standard pressure for segmental arterial studies?

Which medications are typically prescribed to someone who is diagnosed with a DVT?

What is number #1 pointing to?