PCB 2099 Lecture Notes - Lecture 1: Zygote, Organogenesis, Vasoconstriction
Document Summary
Walter cannon: physiologist, came up with the term, major contributor to physiology. Major topics: renal: filters blood, pulls out filtrate, transforms into urine, neuro: neurons, impulse starts at axon, neurotransmitters communicate between neurons, cardiovascular. Function reflects structure: considered a principle: cranial cavity: protects brain, heart valves: prevents backflow. Macromolecules or biomolecules ie proteins, carbs, lipids forms organelles constituents of cells: cellular. Eukaryotic is a cell that has a true membrane bound nucleas. Cells that have a common function: organ. Necessary life functions: maintaining boundaries: internal/ external. Organismal level: separated by skin: responsiveness: stimuli/ response. Responsiveness over time will diminish: movement: somatic/ visceral. Involuntary and voluntary: blinking oculi muscles, breathing intercostal and diaphragm, yawning, sneezing, swallowing saliva pharyngeal constrictors. Visceral: involuntary movements, wired to the autonomic nervous system that never sleeps. Vasoconstriction, peristalsis, heart contraction: growth: increase in biomass/differentiation. Gametes created a zygote that became an embryo that turned into a fetus. Organogenesis: digestion: breakdown of ingested food.
