BILD 2 Lecture Notes - Lecture 4: Nucleus Accumbens, Circadian Rhythm, Epithalamus
Document Summary
Potential: neuronal: receptor is afferent neuron, a larger change in receptor potential causes more frequent action potentials. Stimulus causes a change in the membrane potential: nonneuronal: receptor regulates afferent neurons, which leads to neurotransmitter to be released, a larger change in receptor potential causes more neurotransmitter to be released. The fluid moves: sensory receptors (mechanoreceptors) detect the motion, sensory receptors: hair, the movement of the hair causes ion channels to open and close creating a graded potential. Neurotransmitters are released: a signal is produced from the action potential. The signals travels down the auditory nerve to the brain (signals from vestibular apparatus are carried through verstibulocochlear nerve to vestibular nuclei: visual perception, light detectors: cells that detect direction and intensity of light. Brother can father 2 children: c= 0. 25x2= 0. 5. The sister has 25% chance of dying and not being able to have 2 children: r=0. 5. The brother and sister share half their genes on average: 1>0. 5.
