Splanchnology()- Urinary system-
- Urinary system Splanchnology (Ⅲ)
Formation:KidneyUreterTractsUrinary bladderUrethra
Ureter Urinary bladder Urethra Formation: Kidney Tracts
Section 1KidneyI.Features·bean-shaped organ.10cmlong,5cmwide:weights 134～148g2 surfaces --- anterior, posterior2 extremities - superior, inferior2 borders----- medial, lateral
Section 1 Kidney 2 borders - medial, lateral Ⅰ. Features 2 surfaces - anterior, posterior 2 extremities - superior, inferior • bean-shaped organ • 10cm long, 5cm wide • weights 134～148g
Medial borderRenal hilum· a notch at the medial border of the kidney·is the opening of the renal sinusRenalpediclethestructurespassingthroughtherenalhilum are enclosed by connectivetissue·Front→ backward: renal V、A、pelvis·Superior-→inferior: renalA、V、pelvisRenal sinus:acentral recess inthemedial border? Right kidneyof kidney
➢ Renal hilum ➢ Renal pedicle • Front backward：renal V、A、pelvis • Superior inferior：renal A、V、pelvis ➢ Renal sinus • a central recess in the medial border of kidney • a notch at the medial border of the kidney • is the opening of the renal sinus • the structures passing through the renal hilum are enclosed by connective tissue • Right kidney Medial border
Ⅱ.Location.lies in the retroperitoneal spaceLeft kidneyRight kidneyInf.border ofSup.border ofSuperiorExtremity11thTV12th TVInf.border ofSup.border ofInferiorExtremity2nd LV3rd LV
Ⅱ. Location • lies in the retroperitoneal space Left kidney Right kidney Superior Extremity Inf. border of 11th TV Sup. border of 12th TV Inferior Extremity Inf. border of 2 nd LV Sup. border of 3 rd LV
Renal hilum:: the level of the 1st LV, 5cm lateral to the spinal column.Renal region:. The area between the 12th rib & the lateral B. of the erector12th ribErectorspinaeRenalregion
Renal region Renal hilum: Renal region: • The area between the 12th rib & the lateral B. of the erector • the level of the 1st LV, 5cm lateral to the spinal column. Erector spinae 12th rib
Renal cortexRenal columnI..StructuresofkidneyI）Renal cortex·is the superficial tissue andreddish-brown in coloris composed of renal corpuscleand renal tubules Renal column: the parts of renalcortexbetween therenal pyramidsRenal pyramid.Thecoronal section
Ⅲ. Structures of kidney • The coronal section Ⅰ）Renal cortex • is the superficial tissue and reddish-brown in color • Renal column: the parts of renal cortex between the renal pyramids Renal cortex Renal column Renal pyramid • is composed of renal corpuscle and renal tubules
Ⅱ） Renal medullaRenal papillae·Renal pyramids·Renal papillae: papillary foraminaMinorrenal calyxMajor renal calyxRenal pelvisUreter.Thecoronal section
Ⅱ）Renal medulla • Renal pyramids • Renal papillae: papillary foramina Minor renal calyx Major renal calyx Renal pelvis Renal papillae Ureter • The coronal section
IV.Coverings① Fibrous capsule - smooth, fibrous membrane② Adipose capsule -protects & supports kidneys③Renalfascia-anterior&posteriorlayers232
Ⅳ. Coverings ① Fibrous capsule – smooth, fibrous membrane ② Adipose capsule – protects & supports kidneys ③ Renal fascia – anterior & posterior layers ① ② ③ ③ ②
Section2 The ureters.2 muscular tubes·conveytheurinefromrenalpelvisto the urinary bladder·20~30cmlong, Φ 0.5~0.7cmI.Abdominal partfromjunctionoftheureter&renalpelvis→ the inlet of pelvis. Pelvic part?from the inlet of pelvis → the wallof the urinary bladderIntramural part·passes obliquelythroughthe wallof the urinary bladder
Section 2 The ureters • passes obliquely through the wall of the urinary bladder. Ⅰ. Abdominal part Ⅱ. Pelvic part • from junction of the ureter & renal pelvis → the inlet of pelvis • from the inlet of pelvis → the wall of the urinary bladder Ⅲ. Intramural part • 2 muscular tubes • convey the urine from renal pelvis to the urinary bladder • 20～30cm long, Φ 0.5～0.7cm