Local anesthetics inhibit nerve conduction in a reversible manner without altering the nerve. The inhibition appears rapidly and for a longer or shorter duration depending on the products and the concentrations used. The extent of the territory rendered insensitive to pain depends on the modes of administration of the local anesthetic, either at the level of the nerve endings, or at the level of a nervous trunk, for example.
They act at the level of the neuronal membrane by interfering with the process of excitation and conduction. The anesthetic crosses the axon membrane, rich in lipids, in the form of base before taking up a cationic form on the internal face of the neuron where the pH is more acidic.
At this level, there is a blockage of nerve conduction by decreasing the membrane permeability to sodium ions that occurs during the depolarization phase. As the progression of the anesthetic action along the nerve increases, the threshold of excitability increases and the conduction time increases. This is completely blocked from a certain concentration of local anesthetic.
The nerve fibers are unequally sensitive to the action of local anesthetics: they disappear in order: the painful, thermal, tactile sensations.
Answer:
"Carbohydrates are used for energy (glucose). Fats are used for energy after they are broken into fatty acids. Protein can also be used for energy, but the first job is to help with making hormones, muscle, and other proteins. Broken down into glucose, used to supply energy to cells. Your body uses amino acids to build and repair muscles and bones and to make hormones and enzymes. They can also be used as an energy source."
This is from uofmhealth.org I hope this helps
Explanation:
Basically:
Carbs=energy
Fats= turned into acid then energy
Protein= turned into amino acids and repairs your body/also energy if needed.
1. Pass through the cochlea, are transformed into nerve impulses and sent to the brain - sound waves
2. Forms in your outer ear and is meant to protect your ear from dirt and infection – cerumen
3. Receives sounds and sends them through the auditory canal to the eardrum - outer ear
4. A thin membrane that transmits sound waves into the middle ear – eardrum
5. Where the cochlea is - inner ear
6. A snail-shaped organ lined with hair cells. – cochlea
7. Inside, small bones transmit sound waves from the eardrum to the inner ear - middle ear
8. Destroyed by extended exposure to loud noise - hair cells
Explanation:
During hearing, sound waves are received by the outer ear and pass it on to the ear drum through the external auditory canal.
The sound waves upon hitting the eardrum makes it to vibrate and the vibrations are passed on the ossicles of the middle ear. The sound waves are amplified by the ossicles and passes to the inner ear where it reaches the cochlea.
The sensory hair cells in the basilar membranes of the inner ear move the sound wave and also help to create electric signal which is received by the auditory nerves.
These signals are received by the brain where the sound waves are processed.
The jobs that drift your way that eventually result in being your career.
