According to place theory particular frequencies of sound waves are encoded at specific locations along the basilar membrane of the cochlea. 1. A or B: Where on the basil
Anatomy and Physiology of Special Sensory Organs
Sensory organs can be labeled as special sensory structures that permit sight, hearing, odor, and flavor. Sensory structures permitting proprioception, touch, thermal, and pain perception can be classified as more advanced sensory organs. The sensory neurons are trained to find out modifications in the external and internal conditions so that a person's body can react to that change. A stimulus is the first signal that is recognized by any sensory receptor of the body. Stimulus is an impulse generated when there is a change in the surroundings of a person. For example, a heated environment will alert the brain through the thermal sensory organs and generate a reflex accordingly.
Sensory Receptors
The human sensory system is one of the most complex and highly evolved structures, which processes a myriad of incoming messages. This well-coordinated system helps an organism or individual to respond to external stimuli, appropriately. The sensory receptors are an important part of the sensory system. These receptors are specialized epidermal cells that respond to external environmental stimuli. These receptors consist of structural and support cells that form the peripheral unit of the receptor and the neural dendrites which receive and detect the external stimuli.
According to place theory particular frequencies of sound waves are encoded at specific locations along the basilar membrane of the cochlea.
1. A or B: Where on the basilar membrane of the cochlea does a wave of low frequency peak (for example, 400 Hz)? a. base of cochlea or b. apex of cochlea
2. A or B: Where on the basilar membrane of the cochlea does a wave of high frequency peak (for example, 2000 Hz)? a. base of cochlea or b. apex of cochlea
In 1 Sentence, what if a 400 Hz tone and a 2000 Hz tone are presented at exactly the same time? Briefly describe the wave in the cochlea in relation to your answers to questions 1 and 2.
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