. Bensley's Practical anatomy of the rabbit : an elementary laboratory text-book in mammalian anatomy. Rabbits -- Anatomy. 124 ANATOMY OF THE RABBIT ly shown in a cast of the cavity (Fig. 71). The suitability of the term cah'x is Fig. 71. Medial, dorsal, and posterolateral views of a cast of the renal pelvis and beginning of the ureter of a rabbit. The deep depression visible in the middle .of the cast in the posterolateral view is occupied by the renal papilla. The pelvis is slightly distended by the pressure required to fill it with the mass. Internal Structure and Function When ho
. Bensley's Practical anatomy of the rabbit : an elementary laboratory text-book in mammalian anatomy. Rabbits -- Anatomy. 124 ANATOMY OF THE RABBIT ly shown in a cast of the cavity (Fig. 71). The suitability of the term cah'x is Fig. 71. Medial, dorsal, and posterolateral views of a cast of the renal pelvis and beginning of the ureter of a rabbit. The deep depression visible in the middle .of the cast in the posterolateral view is occupied by the renal papilla. The pelvis is slightly distended by the pressure required to fill it with the mass. Internal Structure and Function When horizontally divided (Fig. 70), the kidney is seen to be made up of a n:ore vascular and granular external layer, termed the cortex, and of a somewhat radially striated, central mass, termed the medulla. Notwithstanding the solid appearance of cortex and medulla, the kidney is made up of a system of tubules, the relation of which to the vascular system is such that water and certain soluble substances to be excreted are passed into them from the blood stream. The primary tubule, or nephron, (Fig. 73, B) begins in each case in the cortical substance with a cup-like structure, known as a renal or Malpighian corpuscle. This consists of a double capsule containing a glomerulus or knot of capillaries from the renal artery (Fig. 73, A). The blood in the glomerulus is separated from the cavity between the two layers of the capsule only by a very thin membrane composed of the lining of the capillary and that of the capsule, both of which linings are uninterrupted, and through this membrane fluid is filtered into the cavity of the capsule, whence it flows into the tubule. The nephron beyond the capsule is differentiated into portions known as the proximal and the distal tubules. The first of these comprises a convoluted portion, a straight portion, a thin portion, and a thick portion, of which the first with the renal corpuscle lies entirely in the cortex while the. Please note that these
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