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Urinary System
Anatomy
Question | Answer |
---|---|
Retroperitoneal Space | The space anterior to the vertebrae and posterior to the peritoneum |
Contents in Retroperitoneal Space | Kidneys, Ureters, Suprarenal gland, Aorta, IVC, Sympathetic trunk, and Lymphatic Glands |
The inferior part of the Left Kidney is found in what level? | L3 |
The inferior part of the right kidney is found in what level | L4. It is lower than the left kidney because of the liver. |
What is found anterior of the right kidney | Duodenum, liver, colon |
What is found anterior of the left kidney | spleen, pancreas, colon |
Anterior to Posterior: Arteries, Ureter, Veins | Veins, Arteries, Ureter |
What is found anterior to the right ureter? | Duodenum, ileum, rightcolic and ileocolic vessels, right gonadal vessels, small intestine mesentery (right part) |
What is found posterior to the right ureter? | Right psoas muscle |
What is found anterior to the left ureter? | Sigmoid colon, Left colic artery, left gonadal vessels, Inferior mesenteric vein lies medial side of the left ureter |
What is found posterior to the left ureter? | Right psoas muscle Pelvis: Sacroiliac joint |
Renal Fascia | Encases the kidneys and attaches to the hilum |
In perinephric abscesses, what is preventing the spread of pus to the contralateral side? | The attachment of the renal fascia to the hilum. |
Be able to identify the kidney coverings and the muscles in its vicinity. | Psoas muscle, Psoas sheath, renal fascia, renal capsule, peritoneum, pararenal fat |
Psoas abscess | Vertebrae--> Psoas sheath --> Psoas abscess |
What are the 3 constrictions of a ureter | 1. Pelviureteric junction 2. Crossing of pelvic brim 3. Entering in bladder |
Tributaries: Lt renal vein | Lt. gonadal vein Lt. suprarenal vein |
Blood supply of the upper 1/3 of ureter | Renal Artery |
Blood supply of the middle 1/3 of ureter | Lt. testicular or ovarian artery |
Blood supply of the lower 1/3 of ureter | Superior vesical artery |
Kidney injury at the cortex | subcapsular hematoma |
Kidney injury at the cortex and capsule | Hematoma |
Kidney injury at the renal capsula communicating with renal pelvis | hematuria |
Kidney injury at the hilum | 1) Ischemia (renal artery) 2) Affects organs supplied by Renal Artery 3) Obstruction Gonadal vein (varcocele) |
What do you see inside a urinary bladder? | Trigone, urethral opening, and mucosa |
Sympathetic innervation to the bladder | hypogastric plexus |
Parasympathetic innervation to the bladder | Pelvic splanchnic |
Parasympathetic action: Bladder | Contraction of bladder muscle and inhibition (relaxation) of sphinter and vesicae (micturation) |
Sympathetic Action: Bladder | Inhibits contraction, stimulate closure of sphincter, vesicae, ejaculation |
Neurovascular Supply of Bladder: Parasympathetic | 1) Motor to the detrusor muscle 2) Parasympathetic stimulation contraction of the detrusor muscle 3) Relaxation of the internal urethral sphincter-micturition |
Neurovascular Supply of Bladder | 1) Contraction of internal sphincter 2) Ejaculation of semen in and prevent reflux of semen into bladder |
Lymphatic drainage: Superior Part of Bladder | External Iliac lymph node |
Lymphatic drainage: Inferior Part of Bladder | Internal Iliac lymph node |
Lymphatic drainage: Neck of the Bladder | Common Iliac nodes or sacral lymph node |