The trachea bifurcates, or divides, into two branches at its most distal portion and forms the bronchi. The bifurcation is reinforced by a cartilaginous plate called the carina. Like the trachea, each bronchus is made up of cartilaginous rings to keep the lumen open as it goes into the lung. As the branches get smaller, they are called secondary bronchi and segmental (or tertiary) bronchi.
Pins and Needles - Paraesthesia. The most common cause of pins and needles is a moderately pinched nerve. Pins and needles is referred to as paraesthesia in the medical community. Did you know that feeling pins and needles can actually be a worse sign than having pain in your arm or leg.
Diabetic neuropathy (nerve damage) is a common cause of tingling and numbness in the legs that can at times be painful. For diagnostic and therapeutic purposes, it is important to differentiate the exact type and location of any pain in the legs.Blood clots (deep vein thrombosis) can be another cause of leg pain.Pain in the knee and ankle joints of the leg is common with the arthritis conditions.lood clots (deep vein thrombosis) can be another cause of leg pain. Pain in the knee and ankle joints of the leg is common with the arthritis conditions.