BLG 600 Lecture Notes - Lecture 11: Sensorineural Hearing Loss, Autonomic Ganglion, Saccule
Document Summary
Chapter 11 sensory neuron travels through dorsal root ganglion towards brain motor neutron travels through ventral root towards muscles motor division. Voluntary division = somatic involuntary = autonomic- uses 2 motor neurons (travels through autonomic ganglion) autonomic nervous system- sympathetic and parasympathetic sympathetic is most active during physical activity. Parasympathetic regulates resting functions such as digesting food and emptying the bladder enteric nervous system monitor and control the digestive tract independently of the cns (can be overridden) Anterolateral system- cutaneous sensory information to the brain. Dorsal-column/medial-lemniscal system- 2 point discrimination, proprioception, pressure and vibration spinocerebellar tract- proprioception. In bright light, excess rhodopsin is broken down, so that not as much is available to initiate action potentials, and the eyes become adapted to bright light. Volume is a function of wave amplitude, or height, measured in decibels- the greater the amplitude, the louder the sound.
