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  #1  
Old 03-02-2012
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Question Endothelium versus Smooth Muscle Histology Slide!

Where is the action of alpha1 adrenergic dugs in this pic (Its from Kaplan Qbank "QID 1148")

They say answer E and say that E is smooth muscle =\

I think this is wrong, as E is endothelium and the receptor is in D which is smth msl :SSS

Any idea guys??

Endothelium versus Smooth Muscle Histology Slide!-2.jpg
click image to enlarge
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  #2  
Old 03-07-2012
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i guess D is smooth muscle where it should work
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Old 03-07-2012
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Here's the correct labels for your picture
A = Endothelial cell
B = Neutrophil
C = Internal elastic lamina
D = Tunica adventitia
E = Smooth muscle cell nucleus

Here's a useful diagram to understand the layers
Endothelium versus Smooth Muscle Histology Slide!-vessel-wall.jpg
click image to enlarge
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Old 03-07-2012
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its E thanks
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  #5  
Old 03-08-2012
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Wink kaplan is right guys

(E) is the smooth muscle layer dont forget that it is a longitudinal section in the blood vessel and the smooth muscles are circular so it will appear as D in additin smooth muscle cells are simple squamous epithelium and it couldnt appear like D so,
A is endothelim
B is neutrophil
C is basement membrane(and note that the arrow o C lies between two endothelial cells which are squamous in nature)
D is the advetitia
E is smooth muscle cells
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Histology-, Micrographs-, Pharmacology-

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