BIOl 152 1st Edition Lecture 15Outline of Last Lecture I. AngiospermII. Life Cycle of angiospermsIII. Diversity within angiospermsOutline of Current Lecture I. Epithelial TissueII. Connective TissueIII. Nervous tissueIV. Generation of Neural ImpulseCurrent LectureI. Epithelial Tissue Occurs in all the clades of animals, epithelial tissue is a sheet of cells that covers the internal and external surface. The basal surface rests on the basal lamina, made up of protein fibers. Intercellular junctions join the cells that make up the epithelial tissue. The function of this tissue is to provide protection, absorbing nutrients, and secreting substances. II. Connective TissueThis tissue is found in some but not all animal clades. This tissue is composed of a few scattered cells, surrounded by extracellular junctions. The function of this tissue is to provide transport, storage and a means of transportation. Some examples include bone and blood in animals.III. Nervous TissueThe nervous tissue forms the nervous system in some, not all, animals. The function of the nervous tissue is to provide coordination of muscle contractions, sense the environment and regulate and stabilize the internal state. IV. Generation of Neural impulseThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Neurons have differences in electrical charge, with a negative charge on the inside and a positive charge on the outside. Upon receiving sensory stimuli, the neuron will be activated and a neural impulse makes its way down the neuron. As the neural impulse moves along the neuron, certain voltage-gated channels open allowing first sodium out then potassium in. The neural impulse moves quickly from the receiving dendrites to the releasing termini that pass the message to the next
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