Chapter 9

Homeostasis & Behavior&

Further Discussion of the Posterior Pituitary

9.2 The thermostat is a common homeostatic device

9.3 Behavioral thermoregulation in iguanas (Part 2)

9.3 Behavioral thermoregulation in iguanas (Part 1)

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.

9.4 Body fluid is maintained in separate, but interacting, compartments

9.5 Osmosis

9.6 Osmotic thirst

9.7 Two types of thirst result from different osmotic conditions

CELL “DEHYDRATION”

Loss of fluids and solutes…. Such as in blood loss.

9.8 Rating of thirst after water deprivation (Part 1)

9.8 Rating of thirst after water deprivation (Part 2)

9.9 Vasopressin (ADH) mediates water consumption

Brattleboro rats lack Vassopressin (ADH) and are therefore perpetually thirsty.

9.16 Metabolic interactions among the major components of energy balance in the well-fed state

9.17 Metabolic interactions among the major components of energy balance in the fasting state

9.18 Leptin and insulin act as peripheral signals

9.25 Effects of ovariectomy and progesterone treatment on body mass

Box 9.1 Vertebrate Renal Function

Sir William Bowman – surgeon and histologist who first described the functional unit of the

kidney (the nephron) in 1842.

Figure 25.1a

Figure 25.3

Figure 25.5a

Figure 25.5b

Figure 25.6

Figure 25.7a

Figure 25.8

Figure 25.9

Figure 25.14

Figure 26.4

H. H. Dale – made the connection between extracts from the pituitary and the effect of uterine contraction.