LIFESCI 2 Lecture Notes - Lecture 6: Procaine, Potassium Channel, Tandem Pore Domain Potassium Channel
Document Summary
Dendrites- branches extensions of the cell membrane, act as recipient of electrical signal. Also known as perikaryon or cell body. Transmits the electrical signal away from the cell body (electrical signal always travels away from cell body) Where neutortransmitters are located, can send the signal to the next neuron. Electrical activity generated happens at an extremely high rate. This is because the axon is covered by a myelin sheath, insulates, keeps electrical signal in neuron, makes it go at a very fast rate. Sensory neurons send signals to brain (aka afferent neurons) Interneurons interpret what the signals means within the cns. Efferent neurons send information from the cns (motor) All have in common: ap"s and electrical activities. Axon terminals of one neuron connected with the cell body/dendrites of next. Ability for ions to move across a membrane. Ap- changes in ionic movement (changes in electrical activity) 70mv resting potential- when neuron is at rest.
