Answer:
The correct order of events in sound transmission is 1, 4, 2,3 5
Explanation:
1. Tympanic membrane vibrates.
4. Ossicles of the ear vibrate.
2. Internal ear fluids are set in motion.
3. Hearing receptors are stimulated.
5. Auditory cortex is stimulated.
Sound is received by external ear or pinna that travels into the ear canal and causes the eardrum or tympanic membrane to move. The tympanic membrane vibrates with sound waves. Sound vibrations move through the ear bones or ossicles to the cochlea and cochlea moves due to sound vibration. Fluid movement causes the hair cells to move. As hair cells move up and down, electrical signals is generated. The auditory nerve sends electrical signal to the brain, which turns it into a sound.
Answer:
nai.malai tahaa chaina ray kya huhu hai hai
Answer:
Glutamate
Explanation:
Amyotrophic lateral sclerosis is a disease which is caused by the death of the neurons which control the voluntary muscles of the body especially the motor neurons. The neurons die when the calcium level increases and the capacity of the transporter which removes the glutamate from the neuron called amino acid transporter 2 decreases. Therefore the increased level of the glutamate in the neurons causes the death of the neurons.
The disease is caused by either some environmental factors and in some cases it becomes genetically inherited.
Thus, glutamate is the correct answer.
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