Write short notes on the following:(a) Cochlea (b) Organ of Corti (c) Synapse
(a)Cochlea- Cochlea is a long, coiled outgrowth of sacculus. It is the primary listening to organ. The cochlea bureaucracy 3 chambers. (i) Upper - scala vestibule (ii) Middle - scala media (iii) Lower - scale tympani The ground of the scala media is basilar membrane whilst its roof is Reissner's membrane. Reissner's membrane gives out a projection referred to as tectorial membrane. The organ of corti, a listening to organ, is placed at the basilar membrane. Organ of corti includes receptor hair cells. The higher scala vestibule and decrease scala tympani include perilymph.(h) Organ of corti- Organ of corti is the listening to organ. It is positioned at the basilar membrane that consists of hair cells. Hair cells act as auditory receptors. They are gift at the inner facet of organ of corti.(c) Synapse Synapse is a junction among the axon terminal of 1 neuron and the dendrite of subsequent neuron. It is separated with the aid of using a small hole called synaptic cleft. There are styles of synapses. (a) Electrical synapse (b) Chemical synapse In electric synapses, the pre and submit synaptic neurons lie in near proximity to every other. Hence, the impulse can flow without delay from one neuron to every other throughout the synapse. This represents a quicker approach of impulse transmission. In chemical synapses, the pre and publish synaptic neurons aren't in near proximity. They are separated through a synaptic cleft. The transmission of nerve impulses is accomplished through chemical compounds including neurotransmitters.