10.1 The Urinary System Flashcards
is recognized as the excretory system that gets rid of waste products produced in the body
Urinary System
3 other systems also excrete some waste
o Skin
o Lung
o Large intestine
are terms that are used to include both the urinary and reproductive organs
Genitourinary or urogenital
excretory organs
Right and Left Kidneys
pipelines to bladder
Right and Left ureters
reservoir of urine
Urinary bladder
a waste pipe to the outside
Urethra
Bean shaped organs that lie in the upper posterior abdomen one on either side of the vertebral column. About 11.25 cm or 4.5 inches in vertical length
Kidneys
a covering of fibrous connective tissue encloses each kidney perinephritic fat surrounding this covering
Renal capsule
is a depression or indentation on its medial border where the structures composing the pedicle join the kidney
Hilum (hilus)
vertical cleft or space at the hilum through which the parts of the pedicle enter or leave the kidney
Renal sinus
includes renal artery, renal vein, renal pelvic, lymphatics, and nerves that join the kidney at the hilum
Renal pedicle
five in number, are subdivisions of the kidney
Renal segments
is the lower pole or end
Inferior (lower) extremity
Hollow tubes about 25 to 30 cm, 10 to 12 inches in length that extend from a kidney to urinary bladder
Ureters
Has 3 coats – outer fibrous layer, a layer of visceral muscle, lining of epithelium
Ureters
are two openings between the lower ends of the ureters and the urinary bladder
Urethral openings
upper expanded funnel-shaped end of each ureter
Renal pelvis
about 4 cm or 1.5 inches in length. It passes down and forward from the bladder neck to its opening on the perineum. The external urethral opening is a small opening in the midline in front of the vaginal opening
Female urethra
about 20 cm or 8 inches in length, much longer than that of the female
Male urethra
passes through the prostate and is about 3 cm or 1.2 inches in length. The prostatic and ejaculatory ducts open into this part
Prostatic part or prostatic urethra
runs from inferior surface of the prostate through the membrane of the perineum
Membranous part or membranous urethra
previously called the cavernous urethra extends through the length of the penis in the corpus spongiosum
Spongy part of penile part
paired branched of the abdominal aorta, supplying blood to the kidneys
Right and Left renal arteries