BIOL 103 Lecture Notes - Lecture 7: Osmoreceptor, Dermis, Ibuprofen
20 Jun 2016
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Document Summary
Types of skeletal muscle fibres: oxidative and glycolytic fibres. Oxidative: rely mostly on aerobic respiration, make us of steady energy supply- mitochondria, rich blood supply, large amounts of myoglobin- (oxidative fibre extract oxygen from blood more efficiently) Glycolytic: use glycolysis as primary source of atp, larger diameter but less myoglobin= fatigue more readily (dark meat= oxidative fibres rich in myoglobin, white meat= glycolytic fibres) Slow: maintain long contractions (less sarcoplasmic reticulum= pump ca+ more slowly), but since it remains longer in cytosol= the twitch will last longer than fast. Sensory neurons: transmit information from senses that detect external stimuli, or internal conditions and sends to integration. Interneurons: local circuit connecting neurons in the brain. Motor neurons: transmits signals to muscle cells to result in a motor output (extend out of processing centre in the brain) Cell body: consists of neurons" organelles and nucleus. Dendrites: highly branched extensions that receive signals from other neurons.
