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[2] [5] Venous drainage mostly parallels that of the arterial supply; [5] [2] that is, it begins as a network of smaller veins in the adventitia; with the renal veins draining the upper ureters, and the vesicular and gonadal veins draining the lower ureters. [1] Lymphatic drainage depends on the position of lymphatic vessels in the ureter. [1]
The neck of the bladder is the area at the base of the trigone that surrounds the internal urethral orifice that leads to the urethra. [5] In males, the neck of the urinary bladder is next to the prostate gland. The bladder has three openings. The two ureters enter the bladder at ureteric orifices, and the urethra enters at the trigone of the ...
The inferior mesenteric lymph nodes consist of: (a) small glands on the branches of the left colic and sigmoid arteries (b) a group in the sigmoid mesocolon , around the superior hemorrhoidal artery
The lesser pelvis contains the pelvic colon, rectum, bladder, and some of the sex organs. The rectum is at the back, in the curve of the sacrum and coccyx; the bladder is in front, behind the pubic symphysis. In females, the uterus and vagina occupy the interval between these viscera. [1]
The human urinary system, also known as the urinary tract or renal system, consists of the kidneys, ureters, bladder, and the urethra.The purpose of the urinary system is to eliminate waste from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH.
Lymphatics of colon. Details; System: Lymphatic system: Drains to: ... The pararectal lymph nodes are lymph nodes that are in contact with the muscular coat of the ...
The ileocolic lymph nodes, from ten to twenty in number, form a chain around the ileocolic artery, but tend to subdivide into two groups, one near the duodenum and the other on the lower part of the trunk of the artery. Where the vessel divides into its terminal branches the chain is broken up into several groups:
Distinction Above pectinate line Below pectinate line Lymph drainage: internal iliac [2]: superficial inguinal lymph nodes (below Hilton's white line) : Epithelium: columnar epithelium (as is most of the digestive tract - the line represents the end of the part of the body derived from the hindgut)