Module 2: Avian Urinary System

Cards (35)

  • avian kidneys are (Shape)
    lobulated
  • how many lobes do avian kidneys have
    3
  • avian kidneys lack
    renal pelvis
  • 2 types of nephrons found in avian kidney
    reptilian, mammalian
  • reptilian type nephrons have no
    loop of henle
  • size of glomeruli of reptilian nephron
    small
  • reptilian nephrons operate on _ filtration rate
    lower
  • reptilian type nephrons are responsible for secreting majority of _
    uric acid
  • mammalian type nephron are located in
    cortex, medulla
  • mammalian nephrons operate on _ filtration
    high
  • mammalian nephron can _ urine
    concentrate
  • instead of urea, avian kidneys produce _ as a form of nitrogenous waste
    uric acid
  • nitrogenous waste that is very toxic and requires a huge amount of water to be excreted
    urea
  • avians have _ temperature and basal metabolic rate
    higher
  • counterpart of vasopressin in birds
    vasotocin
  • avians that have urinary bladder
    ostriches, rheas
  • 3 parts of cloaca
    urodeum, coprodeum, proctodeum
  • part of cloaca that passes urine
    urodeum
  • part of cloaca that passes feces from colon
    coprodeum
  • part of cloaca that receives egg & is the reproductive tract
    proctodeum
  • composition of avian droppings
    feces, urates, urine
  • normal condition of storing urine in the bladder while it fills
    urinary continence
  • contractions responsible for urinary continence
    tonic contractions
  • occurs when an animal dribbles urine at frequent intervals instead of filling its bladder
    incontinence
  • increased urine output
    polyuria
  • decreased urine output
    oliguria
  • no urine output
    anuria
  • difficult or painful micturition
    dysuria
  • slow, dropwise, painful discharge of urine caused by spasm of urethra & bladder
    stranguria
  • stranguria is a clinical sign of
    feline urologic syndrome
  • act of emptying bladder to urethra
    micturition
  • removal of urine to external environment
    urination
  • large volume of water
    diuresis
  • large amount of salt in urine
    natriuresis
  • glomeruli are _ shaped
    cone