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==Anatomy==
 
==Anatomy==
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Even though the adrenal glands gain through name through their relationship with the kidney they are in fact more closely related to the major vessels. They are closely connected to the aorta and caudal vena cava.
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Even though the adrenal glands gain their name through their relationship with the kidney they are in fact more closely related to the major vessels. They are closely connected to the aorta and caudal vena cava.
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They are elongated and are often asymetrical being moulderd around the neighbouring vessels. Their size varies a lot and generally those of juveniles are larger than adults, and those of lactatcing or pregnant animals are larger than reproductively inactive animals. A medium-sized dog's adrenals will on average measure 2.5x1x0.5cm.
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They are elongated and are often asymmetrical being moulded around the neighbouring vessels. Their size varies greatly and generally those of juveniles are larger than adults, and those of lactating or pregnant animals are larger than reproductively inactive animals. A medium-sized dog's adrenals will on average measure 2.5x1x0.5cm.
    
They are firm and their capsule is easily fractured on flexion. The cortex on appearance is yellow and radially striated whilst the medulla is darker with a more uniform appearance.
 
They are firm and their capsule is easily fractured on flexion. The cortex on appearance is yellow and radially striated whilst the medulla is darker with a more uniform appearance.
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The zona glomerulosa is narrow and the cells are in a whorled pattern. The zona fasiculata is wide and the cells lie in columns. The zona reticularis are more randomly organised.
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The zona glomerulosa is narrow and the cells are in a whorled pattern. The zona fasiculata is wide and the cells lie in columns. The zona reticularis is more randomly organised.
    
==Vascular Supply==
 
==Vascular Supply==
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