Nitric oxide -is a molecule that our body produces to help its 50 trillion cells communicate with each other by transmitting signals throughout the entire body. activates enzyme to release smooth muscleProstaglandin - any of a group of cyclic fatty acid compounds with varying hormone like effects, notably the promotion of uterine contractions. (F = labor) -> it can be inhibited by aspirin and ibuprofenEcdysone - a steroid hormone that controls molting in insects and other arthropods.Epinephrine helps regulate blood glucose levels.http://www.ivyroses.com/HumanBody/Endocrine/Hormones-solubility.phpCell types respond differently to the same hormone because their acceptor proteins are associated with different genes in the two kinds of cells.Steroid vs. Protein Hormones Steroids affect protein synthesis, while peptide hormones affect the activity of proteins already present in the cell.Oxytocin - produced by the hypothalamus and stored and secreted by the posterior pituitary gland, helps produce milkShort blood vessels connect anterior pituitary and hypothalamus (its not directly controlled)Non-tropic direct simulation ex) MSH, tropic require something for simulation ex) TSHThyroid gland controls iodine. Parathyroid controls calcium (makes it).The pancreas stimulates with and without tubes.Postsynaptic cells are cells with changed membrane potential.A knee-jerk reflex, also called patellar reflex, is the sudden kicking movement of the lower leg.Saltatory conduction increases speed of impulse as impulse jumps between myelin sheath schwann cellsTemporal summation occurs when a single presynaptic neuron fires many times in succession, causing the postsynaptic neuron to reach its threshold and fire.GABA inhibits nerve transmission in the brain, calming nervous activity.Analgesic pain relieverTelencapholon cerebrumMedulla heart, breathing, speaking