. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. REN. 245 With the inconsiderable exceptions above mentioned, the terminal twigs of the artery correspond in number with the Malpighian bodies. Arrived here, the twig, which is usually of considerable length, although occasionally very short, perforates the capsule, and, dilating suddenly, breaks up into two, three, four, or even eight branches, which diverge in all directions like petals from the stalk of a flower, and usually run in a more or less tortuous manner, subdividing again once or twice as they advance over the
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. REN. 245 With the inconsiderable exceptions above mentioned, the terminal twigs of the artery correspond in number with the Malpighian bodies. Arrived here, the twig, which is usually of considerable length, although occasionally very short, perforates the capsule, and, dilating suddenly, breaks up into two, three, four, or even eight branches, which diverge in all directions like petals from the stalk of a flower, and usually run in a more or less tortuous manner, subdividing again once or twice as they advance over the surface of the ball they are about to form. (Fig. 153.) Fig. 1. Malpighian tuft. — Horse. The injection has penetrated only to the capillaries, a, the artery; f, one of its terminal twigs (or the afferent vessel of the Malpighian body) ; d, the dilatation and mode of breaking up of the terminal twig after entering the capsule; the division of the tuft into lobes, /, /, /, /, is well seen; i, i, intervals between the lobes. Mag- nified about eighty diameters. 2. Malpighian tuft. — Horse. The injection has penetrated through the tuft, and has filled the affer- ent vessel, f, the afferent vessel; d, its dilatation and mode of division ; m, m, Malpighian capillaries; e, efferent vessel springing from them, and leaving the capsule between two primary branches of the afferent vessel. Magnified about eighty diameters. 3. Malpighian body. — Horse. The injection, after filling the primary branches of the afferent vessel, has burst into the capsule, and passed off along the tube. It has not filled the tuft of capillaries, which consequently are not seen, nor has it spread within the capsule over the whole surface of the tuft, f, the afferent vessel; d, its dilatation and mode of subdivision ; c, c, the outline of the distended capsule; t, the tube passing from it; m, situation of the un- injected Malpighian tuft. Magnified about seventy diameters, -(After Bowman.) The vesse
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