Urogenital System Flashcards
What region of the cloaca does urine and gametes pass?
urodeum
The hemipenes are a pair of retractable intromittent organs found among reptiles. T/F
T
The embryonic vitelline vein of a shark will develop into its hepatic portal. T/F
T
The mesonephric duct will develop into the ureter of the kidney. T/F
F
Primitive amphibians have what kind of glomerulus?
external glomerulus
(protrudes into the coelom)
What is the unique feature of the external glomerulus?
no bowman’s capsule
In an external glomerulus, filtrate and coelom juice is mixed and passed through where before going to the collecting duct?
nephrostome
Where does the efferent arteriole lead to?
peritubular capillaries
What region of the kidney undergoes development first?
anterior portion - pronephric kidney
What is the earliest vertebrate kidney?
archinephric duct (holonephron)
What is the crucial embryonic structure that initiates the development of the renal system?
nephric ridge
Mesonephric duct disintegrates, what does it give rise to?
metanephros
What is the function of the tubal bladder?
stores urine
