Eventually, the bronchi become known as bronchioles â the smallest air tubes in the lungs. This system of air tubes can be thought of as an upside down tree, with the trachea being the main trunk and the bronchi and bronchioles being the branches. The medical term for all the air tubes is 'the respiratory tract'.
An injury to the vertebrae or discs in your neck can cause pain, numbness, or weakness in your shoulder, arm, wrist, or hand because the nerves that extend out from between the neck provide sensation and allow for movement in these areas.
What Causes Shaky Hands? Many people associate shaky hands with Parkinsonâs disease, but the most common cause of shaking hands is actually essential tremor. Essential tremor is the most common neurologic disorder affecting adults, but itâs not well understood. Itâs likely caused by a disruption in normal brain function of the cerebellum, though researchers are not entirely sure what causes the interruption, if it is a degenerative process, or how it can be stopped. People with essential tremor often experience frequent shaking. The shaking is most common in the hands, arms, head, and vocal cords, and cannot be controlled. This shaking is most obvious when you try to use a muscle. When the muscle is relaxed, the shaking will likely not occur or it will become milder.