Anatomy Lab Manual Flashcards
Function of Kidneys: Maintains?
Body’s fluid and electrolyte balance
Function of Kidneys: RegUlate?
Volume and Composition of Urine ( Waste Products of Metabolism)
Function of Kidneys: Secretes?
Substance in circulation that regulates blood pressure and process of hematopoiesis
Location of Kidneys
Supine position: 12th thoracic to 3rd lumbar region
Reddish-brown in colour, 11 cm in length, 6cm in width and 3 cm thick
Kidney
What shape does kidney has?
Bean shape with concave medial and convex lateral borders
Vertical slit on the median border of the kidney?
Hilum
Hilum leads into wide space inside the kidney called?
Sinus of the Kidney
Structures of the kidney?
Branches of Renal Artery Tributaries of the Renal Veins Renal Calyces Renal Pelvis Lymph vessel, nerve and fats
Formed by transversalis fascia (endoabdominal fascia) that enclose anterior and posterior layer of kidney and the suprarenal glands
Renal Fascia ( Gerotas Fascia )
Lies behind the kidney and located between aponeurosis of origin of the transverse abdominis muscle and posterior layer of renal fascia
Pararenal fat ( Retrorenal Fat )
Lies in fascial plane underneath renal fascia (space of gerota). Forms the fatty capsule of kidney, running around it and pass medially into hilum and insituates in the renal vessels
Perirenal fat
Fits the kidneys tightly but NOT bound to it
Renal Capsule ( fibrous capsule )
Two parts of Renal Parenchyma
Outer cortex and Inner Medulla
Continuous broad band of tissue on periphery of kidney beneath the capsule
Renal Cortex
Contains renal corpuscles and convoluted portion of renal tubules
Renal Cortex
Projects between renal pyramids towards renal sinus
Renal Columns of Bertini
Discontinuous line to renal columns
Renal Medulla
Striated conical masses varying in number from 8 - 18 and have their bases directed toward the circumference of the kidney
Renal Medulla
Nipple like apices point to renal sinus
Renal Papillae
Summit of each papillae are opening called
Papillary Ducts
From 4 -14 in number
Minor Calyces
Cup-shaped tubes, which composed of 1 or 2 or more renal papillae
Minor Calyces
2 or 3 of minor calyces unite to form what?
Major Calyces
Funnel shaped, extending into the hilum
Renal Pelvis
Blood supply of the kidneys
Abdominal aorta — Renal artery —- Segmental artery ( 5 branches given off at the level of the hilus) — Interlobar artery (ascends between the pyramids and renal columns, NO branches to renal parenchyma) — Arcuate artery (found between corticomedullary junction) — Interlobular artery (lie between the medullary rays — Efferent arteriole — renal glomeruli
Venous drainage of the kidney
Interlobular vein — Arcuate vein – Interlobar vein — Renal vein — IVC
Where does lymph node drain
Aortic group
Venous blood will drain towards?
Inferior Vena Cava
Nerve Supply of kidneys
Renal sympathetic plexus — branches of renal vessel. Afferent fivers — renal plexus and enter spinal cord (10th, 11th and 12th thoracic spinal nerves)
Expansible muscular tubes, whitish in color,2.5cm in length
Ureter
Divide to abdominal, pelvic and renal portion
Ureter
Main function of Ureter
transport urine from kidneys to urinary bladder
Sequential contractions of the smooth muscle
Peristalsis
Right of IVC and pelvis is covered by 2nd duodenum
Right ureter
Blood vessel crossing in front of Right ureter
Right colic artery
testicular or ovarian artery
ileocolic artery
superior mesenteric artery in root of mesentery.
left side or lateral to inferior mesenteric vein, pelvis more exposed and only covered BELOW renal vessel
Left ureter
Blood vessel crossing its anterior surface Left ureter
Upper left colic
testicular or ovarian artery
2 or more left colic vessel
Blood supply of Ureter: Abdominal portion
RTC
Renal artery
Testicular artery
Colic artery
Blood supply of Ureter: Pelvic portion
VM
Vesical artery
Middle vesical artery
Nerve Supply of the ureter
RTH
Renal Plexus
Testicular or ovarian plexus
Hypogastric plexus
Physiological constrictions
Uteropelvic junction (UPJ) - between ureter and renal pelvis Pelvic brim (PB) - ureter crosses the common illiac artery Uterovesical junction (UVJ) - ureter inserts into urinary bladder
Pelvic Organ
Urinary bladder