The Urinary System 泌尿系统

Composition Ureter 输尿管－conduct urine from kidneys to bladder Kidney 肾－form urine Ureter 输尿管－conduct urine from kidneys to bladder Bladder 膀胱－receives and stores urine Urethra 尿道－conducts urine from bladder to exterior of body Ureter Bladder Urethra

Kidney 肾 General features organs Two extremities Two borders Bean shaped, reddish-brown organs Superior extremity Two extremities Medial border Lateral border Two borders Inferior extremity

Kidney 肾 Renal hilum 肾门－a vertical slit on the medial border of kidney Renal pedicle肾蒂 the structures which enter and leave the renal hilum, including the renal vein, renal artery, renal pelvis, lymphatic vessels and nerves Renal hilum Renal pedicle

Kidney 肾 Renal sinus 肾窦 The renal hilum extends into a large cavity within the kidney Occupied by the renal vessels, minor renal calices肾小盏, major renal calices肾大盏, renal pelvis肾盂 and some adipose tissue脂肪组织 Renal sinus

Renal structure肾的结构 Renal cortex 肾皮质 Renal medulla 肾髓质 Renal columns 肾柱 Renal medulla 肾髓质 Renal pyramids 肾锥体 Renal papilla 肾乳头 Minor renal calices 肾小盏 Major renal calices 肾大盏 Renal pelvis 肾盂

Coverings of kidney肾的被膜 Fibrous capsule 纤维囊 Fatty renal capsule 脂肪囊 Renal fascia 肾筋膜 Fibrous capsule Renal fascia Fatty renal capsule Fibrous capsule

Position of Kidney肾的位置 Lie behind the peritoneum腹膜后 on either side of the vertebral column脊柱的两侧 Left kidney lies at the level from the lower border of T11 to L2 Right kidney lies slightly lower than the left kidney, at the level from the upper border of T12 to L3

Renal region肾区 the area between 12th rib and the lateral margin of erector spinae竖脊肌

Position of Kidney

Ureters 输尿管 Muscular tube, about 25cm long Three parts Abdominal part腹段 Pelvic part盆段 Intramural part壁内段 Abdominal part Abdominal part Intramural part

Bladder 膀胱 General features pyramidal in shape when empty Apex尖 Body of bladder General features pyramidal in shape when empty Apex尖 Fundus底 Body of bladder体 Neck颈 Fundus of bladder Apex of bladder Neck of bladder

Interior of bladder内部结构 Trigone of bladder 膀胱三角 Trigone of bladder

Location of bladder膀胱的位置 lies in the lesser pelvis小骨盆, behind the pubic symphysis耻骨联合 in front of seminal vesicle, ampulla ductus deferentis输精管壶腹 and rectum直肠 in the male in front of uterus子宫 and vagina阴道 in the female.

Urethra 尿道 Female urethra Relatively short (about 5cm long), wide and straight