This human anatomy ClipArt gallery offers 82 illustrations of the human excretory system, including views of the systems involved in excreting waste that are not already included in the respiratory and digestive systems. Included here are the urinary tract, renal system (e.g., kidneys), and excretory glands of the skin (e.g., sebaceous and sweat glands).

Epithelial elements of a Malpighian capsule and tuft, with the commencement of a urinary tubule showing the afferent and efferent vessel. Labels: a, layer of flat epithelium forming the capsule; b, similar, but rather larger epithelial cells, places in the walls of the tube; c, cells, covering the vessels of the capillary tuft; d, commencement of the tubule, somewhat narrower than the rest of it.

Epithelial Elements of a Malpighian Capsule

Epithelial elements of a Malpighian capsule and tuft, with the commencement of a urinary tubule showing…

Section of a small portion of the prostate. Labels: a, gland duct cut across obliquely; b, gland structure; c, prostatic calculus.

Section of the Prostate Gland

Section of a small portion of the prostate. Labels: a, gland duct cut across obliquely; b, gland structure;…

An abnormal renal artery causing kinking at the ureteropelvic junction, and hydronephrosis.

Abnormal Renal Artery

An abnormal renal artery causing kinking at the ureteropelvic junction, and hydronephrosis.

"The renal organs, viewed from behind. R, right kidney; A, aorta; Ar, right renal artery; Vc, inferior vena cava; Vr, right renal vein; U, right ureter; Vu, bladder; Ua, commencement of urethra." —Martin, 1917

Renal Organs

"The renal organs, viewed from behind. R, right kidney; A, aorta; Ar, right renal artery; Vc, inferior…

The renal organs viewed from behind. labels: R, right kidney; A, aorta; Ar, right erenal artery; Vc, inferior vena cava; Vr, right renal vein; U, right ureter; Vu, bladder; Ua, urethra.

The Renal Organs Viewed from Behind

The renal organs viewed from behind. labels: R, right kidney; A, aorta; Ar, right erenal artery; Vc,…

A sebaceous gland.

Sebaceous Gland

A sebaceous gland.

Sebaceous gland from the human skin.

Sebaceous Gland from Human Skin

Sebaceous gland from the human skin.

Sebaceous glands from skin covering nose.

Sebaceous Gland from Nose

Sebaceous glands from skin covering nose.

Secreting glands may be classified according to certain types. Shown are plans of extension of secreting membrane by inversion or recession in form of cavities. A, simple glands, viz., g, straight tube; h, sac; i, coiled tube. B, multilocular crypts; k, of tubular form; l, saccular. c, racemose, or saccular compound gland; m, entire gland, showing branched duct and lobular structure; n, a lobule, detached with o, branch of duct proceeding from it. D, compound tubular gland.

Secreting Gland

Secreting glands may be classified according to certain types. Shown are plans of extension of secreting…

"<em>A</em>, simple tubular gland; <em>B</em>, gland with mouth shut and sac formed; <em>C</em> gland with a coiled tube; <em>D</em>, plan of part of a racemose gland." &mdash; Blaisedell, 1904

Secreting glands

"A, simple tubular gland; B, gland with mouth shut and sac formed; C gland…

This illustration shows a section of a human kidney (A, Cortical substance; B, Pyramids; C, Hilum; D, Pelvis; E, Ureter; F, Suprarenal capsule).
Kidneys are excretory organs whose function is to get rid of nitrogenous waste.

Section of Human Kidney

This illustration shows a section of a human kidney (A, Cortical substance; B, Pyramids; C, Hilum; D,…

Coiled end of a sweat gland. Labels: a, the coiled end; b, the duct; c, network of capillaries, inside which the sweat gland lies.

Sweat Gland

Coiled end of a sweat gland. Labels: a, the coiled end; b, the duct; c, network of capillaries, inside…

A sweat gland. Labels: d, horny layer of cuticle; c, Malpighian layer; b, dermis. The coils of the gland proper, imbedded in the subcutaneous fat, are seen below the dermis.

A Sweat Gland

A sweat gland. Labels: d, horny layer of cuticle; c, Malpighian layer; b, dermis. The coils of the gland…

A sweat gland. Labels: a, horny layer of cuticle; c, Malpighian layer; b, dermis. The coils of the gland proper, embedded in the subcutaneous fat, are seen below the dermis.

Sweat Gland

A sweat gland. Labels: a, horny layer of cuticle; c, Malpighian layer; b, dermis. The coils of the gland…

Section of deeper coiled portion of sweat gland.

Sweat Gland

Section of deeper coiled portion of sweat gland.

Section passes through the lower portion of the costal arch, and through the hilus of the two kidneys.

Cross Section of the Trunk through Costal Arch

Section passes through the lower portion of the costal arch, and through the hilus of the two kidneys.

Section through the third lumbar vertebra and the inferior poles of the kidneys cutting the loop of the transverse colon. Upper surface. The liver is unusually large in this individual.

Cross Section of the Trunk through Third Lumbar Vertebra

Section through the third lumbar vertebra and the inferior poles of the kidneys cutting the loop of…

Section through the upper pole of the left kidney at the level of the tip of the xiphoid process.

Cross Section of the Trunk through Upper Kidney

Section through the upper pole of the left kidney at the level of the tip of the xiphoid process.

Diagram showing the method of entrance of the ureter into the bladder.

Entrance of Ureter into the Bladder

Diagram showing the method of entrance of the ureter into the bladder.

In human anatomy, the ureters are muscular tubes that propel urine from the kidneys to the urinary bladder.

Transverse Section of Ureter

In human anatomy, the ureters are muscular tubes that propel urine from the kidneys to the urinary bladder.

The male urethra, which is the urinary canal from the neck of the bladder to the meatus urinarius; in the male it is chiefly within the penis, is from 8 to 9 inches in length, and is divided into 3 parts: the prostatic, membranous, and spongy portions of the urethra.

The Male Urethra

The male urethra, which is the urinary canal from the neck of the bladder to the meatus urinarius; in…

A diagram of the sections of uriniferous tubes. A, Cortex limited externally by the capsule; a, subcapsular layer not containing Malpighian corpuscles; a' inner stratum of cortex, also without Malpighian capsules; B, boundary layer; C, papillary part ext the boundary layer; I, Bowman's capsule of Malpighian corpuscle; 2, neck of capsule; 3. proximal convoluted tubule; 4, spiral tubule; 5, descending limb of Henle's loop; 6, the loop proper; 7, thick part of the ascending limb; 8, spiral part of ascending limb; 9, narrow ascending limb in the medullary ray; 10, the irregular collecting tube of the boundary layer; 15, the large collecting tube of the papillary part which, joining with similar tubes, forms the duct.

Uriniferous Tubes

A diagram of the sections of uriniferous tubes. A, Cortex limited externally by the capsule; a, subcapsular…