KIN 232 Lecture Notes - Lecture 1: Lipid Bilayer, Thyroid, Cyclic Adenosine Monophosphate
Document Summary
Humoral: something in the blood circulating and binding to various receptors; e. g. sodium potassium pumps, diabetes; 5g of sugar in all of our blood (teaspoon) so needs to be regulated by insulin. Neurohumoral: pituitary gland in the brain, hypothalamus regulates homeostasis functions like thirst and hunger; body monitors hydration level by measuring concentration of cerebral spinal fluid and blood and releases. Adh to react accordingly to conserve water; hypothalamus uses neuron to send message to the gland to release hormone. Change in body weight (increase) = stimulus, hormone is released to brain = receptor; hypothalamus decides what to do = control center, releases hormone to increase metabolic rate = effector (efferent nervous system); Standing up quickly the blood volume went down so blood pressure was lower to heart muscle the veins and the sa node increases stroke volume and increased heart rate baroreceptor reflex.
