Anatomy Body Cavities - Urinary System PDF

Urinary System Cheryl Purvis, Ph.D. Professor of Anatomy NSUMD  Structure List (Netter Atlas: Section 4) Identify on a MODEL: - renal corpuscle - glomerulus - Bowman’s capsule - nephron Kidneys - cortex -...

Urinary System Cheryl Purvis, Ph.D. Professor of Anatomy NSUMD  Structure List (Netter Atlas: Section 4) Identify on a MODEL: - renal corpuscle - glomerulus - Bowman’s capsule - nephron Kidneys - cortex - medulla - pyramids - papilla - minor calyx - major calyx - renal pelvis - ureter - hilum - renal vein - renal artery - ureter Ureters Bladder Urethra Study Material: mid-sagittal view of a bisected pelvis. In a male, notice the position of the prostate between the bladder and penile urethra. In a female, notice the position of the urethra anterior to the vagina and anus  Learning Objectives: ◼ Visualize the location of kidneys in relation to the pancreas, spleen and bladder. ◼ Compare and contrast male versus female urinary systems. ◼ Know the flow of urine from production to elimination. ◼ Understand the function of key structures. ◼ Understand the structure of the urinary filtration unit. ◼ Identify the gross anatomical structures of the kidney. ◼ Diagram the urinary ductwork from renal corpuscle to urethra. ◼ Understand the key concept: each pyramid has a minor calyx to collect urine.  Learning Objective Visualize the location of kidneys in relation to the pancreas, spleen and bladder.  4e:406 6e:384 5e:386 Arterial Course of Supply URETERS Venous Drainage 4e:273 6e:267 5e:265 Location …Location …Location 4e:403 6e:381 5e:383 Arterial Supply to the Bladder Learning Objective: Compare and contrast Male versus Female Urinary systems.  Bladder MALE FEMALE  Anterior Abdominal Wall: Internal View Ligamentum Teres = Obliterated Umbilical VEIN Medial Umbilical Ligaments = Obliterated Umbilical Arteries Median Umbilical Ligament = Obliterated Urachus Clinical Significance? Urachal Fistula  Learning Objective: Diagram the urinary ductwork from renal corpuscle to urethra. Learning Objective Know the Flow of Urine from Production to Elimination. Understand the function of key structures.  Learning Objective: ◼ Identify the gross anatomical structures of the kidney. ◼ Diagram urinary ductwork from renal corpuscle to urethra. ◼ Renal Pyramid – pyramid shaped unit in renal medulla ◼ Renal Papilla – tip of pyramid surrounded by a minor calyx ◼ Major calyx – formed by union of minor calyces ◼ Renal pelvis – union of major calyces ◼ Hilum of Kidney – renal vein, renal artery, renal pelvis/ureter Fig. 17.2  KEY Renal Concept: Pyramid Each pyramid Renal has a minor calyx Papilla surrounding the Minor renal papilla to collect Calyx urine.  Learning Objective Understand the structure of the urinary filtration unit: Renal corpuscle – glomerulus and Bowman’s capsule Glomerulus - a tuft of capillaries Bowman’s capsule – space around glomerulus collecting urine Nephron – urinary duct work  Flow Chart of Urine Production Glomerulus Afferent Arteriole Glomerular Capsule Collecting PCT Loop of Henle DCT Duct Renal Major Minor Ureter Pelvis Calyx Calyx Bladder Urethra Glomerulus = a tuft of capillaries formed by the afferent arteriole. Urinary filtrate = fluid filtered from blood Normally red blood cells remain in the capillary.  Learning Objective: Know the Flow of Urine from Production to Elimination Glomerulus Learning Objective: Compare and contrast male versus female urinary systems. FEMALE URETHRA  MAL E URETHRA in Cross Section at BASE of Penis  MALE URETHRA: Prostatic Membranous Penile