BIOL10002 Lecture Notes - Lecture 12: Aldosterone, Exocytosis, Adrenocorticotropic Hormone
Document Summary
Hormone, neurohormone, endocrine and exocrine glands, types of hormone action: Hormone, paracrine & autocrine, hypothalamus, anterior pituitary, posterior pituitary, negative feedback, hypothyroidism, hyperthyroidism, fight and flight response. Study questions: describe the synthesis of thyroxine, explain the role of feedback loops in endocrine function and explain why goiter can result from hyperthyroidism and hypothyroidism. A person sees a physician because they suffer from weakness, lethargy and blurry vision. The physician suspects a problem with the pituitary. There are three types of receptors membrane/cytoplasmic/nuclear. Proteins/amine are usually membrane bound hormones because of lipid insolubility. Steroid/amine usually have nuclear receptors because of lipid solubility. Epinephrine and norepinephrine are released in response to stressful situations. Divert blood flow to skeletal and cardiac muscles. Fat cells release fatty acids energy. Liver cells break down glycogen and secrete glucose energy. Describe the structural and functional features of the anterior and posterior pituitary.
