Chapter 4 Flashcards
The endocrine system responds more
Slowly but has longer-lasting effects
Key characteristic of steroid hormones?
lipid soluble
Nonsteroid hormones are characteristically…?
amino acid/protein based
A key characteristic of prostaglandins is that they…?
exert their effects locally
For a given plasma concentration, hormone effectiveness can be altered by?
number of receptor cells
The anterior pituitary is controlled by…?
Hypothalamic hormones
During prolonged exercise, T3 _____, while T4 _____.
Decreases, plateaus
Which source of glucose is used preferentially by exercising muscle?
from muscle glycogenolysis
An increase in plasma osmolality is the stimulus for release of…?
Aldosterone
Leptin…
Is higher in obese individuals, is secreted from adipose tissue, and increases satiety
Erythropoiesis increases oxygen delivery to the exercising muscle by increasing the…?
Number of red blood cells and volume of blood pumped
The nervous and endocrine systems coordinate and sustain…?
Physical activity - the neuroendocrine system
Endocrine glands that control and regulate ____ or _____ _____.
Cell, organ activity
Steroid hormones are derived from
Cholesterol
______ hormones and their receptor bind to DNA in the nucleus and promote direct gene activation of mRNA synthesis.
Steroid