The Excretory System Flashcards
Maintenance of a ratio between the quantity of salt and water in the body fluids such that the organism can survive in its natural habitat
Osmoregulation
Physiological function that serves as the involuntary control of the chemical environment of cells
Homeostasis
Organs that serve as the reservoir for water
Urinary Bladder
Urinary bladders arise during embryonic development as an evagination from the ventral wall of the ______________.
Embryonic Cloaca
Term used for the evagination from the embryonic cloaca that forms the urinary bladder in therian mammals
Allantois
Fibrous remnant of a part of the embryonic allantois that persists within the coelom distal to the bladder after birth
Middle Umbilical Ligament or Urachus
Connects the distal tip of the urinary bladder to the umbilicus
Middle Umbilical Ligament or Urachus
Three mesenteries that are the sole remnants in adult craniates of the ventral mesentery that extended the entire length of the coelom
- Mesentery of Urinary Bladder*
- Lesser Omentum
- Falciform Ligament
Neurosecretory hormone that evokes active water reabsorption
Antidiuretic Hormone
Where is the antidiuretic hormone released from in the brain?
Posterior Lobe of the Pituitary
Where can you find antidiuretic hormone in the brain?
Hypothalamus
Used by female freshwater turtles to carry water for softening and moistening the soil when a nest is being prepared for eggs
Voluminous Bladders or Accessory Bladders
Deposits in the urine that serves as signalling device for mammals
Pheromones
Utilises the urinary bladder to reclaim essential ions when scarce in a specific environment
Basal Craniates
Utilises the urinary bladder as a signalling device
Mammals
Utilises the urinary bladder for softening and moistening the soil to prepare a nest for their eggs
Female Freshwater Turtles
Four nontherian mammals that have a urinary bladder
- Amphibians
- Turtles
- Basal Lizards
- Monotremes