chapter 9 homeostasis & behavior & further discussion of the posterior pituitary
TRANSCRIPT
9.3 Behavioral thermoregulation in iguanas (Part 3)
Iguanas were injected with an infectious agent and their survival was correlated with the temperature they were kept.
9.7 Two types of thirst result from different osmotic conditions
CELL “DEHYDRATION”
Loss of fluids and solutes…. Such as in blood loss.
9.9 Vasopressin (ADH) mediates water consumption
Brattleboro rats lack Vassopressin (ADH) and are therefore perpetually thirsty.
H. H. Dale – made the connection between extracts from the pituitary and the effect of uterine contraction.
Flank marking and grooming behavior (Mean ± SEM) following microinjection of arginine vasopressin (10 μM in 100 nl saline) in the anterior hypothalamus of golden hamsters treated with vehicle (Veh), clomipramine (Clom), desipramine (Des), and fluoxetine (Fluox). All animals were treated with 2 mg/day for 2 weeks.
Craig F Ferris, Mads F Rasmussen, Tara Messenger and Gary Koppel
University of Massachusetts ( Primary Research Group )
The neurohypophysial peptide, arginine vasotocin (AVT), is thought to function as an antidiuretic hormone in reptiles, helping to limit water loss from the kidneys by reducing the rate at which blood is filtered and also by facilitating water re-absorption in the kidney tubules.
9.12 Synthesis of angiotensin in humans
A protein hormone, causes blood vessels to constrict, and drives blood pressure up.
H. H. Dale – made the connection between extracts from the pituitary and the effect of uterine contraction.
Flank marking and grooming behavior (Mean ± SEM) following microinjection of arginine vasopressin (10 μM in 100 nl saline) in the anterior hypothalamus of golden hamsters treated with vehicle (Veh), clomipramine (Clom), desipramine (Des), and fluoxetine (Fluox). All animals were treated with 2 mg/day for 2 weeks.
Craig F Ferris, Mads F Rasmussen, Tara Messenger and Gary Koppel
University of Massachusetts ( Primary Research Group )
The neurohypophysial peptide, arginine vasotocin (AVT), is thought to function as an antidiuretic hormone in reptiles, helping to limit water loss from the kidneys by reducing the rate at which blood is filtered and also by facilitating water re-absorption in the kidney tubules.