The trachea, also known as the windpipe, is an important structure, which connects the throat to the lungs. It serves the purpose of directing air into the respiratory tract.
The normal trachea is tubular. It maintains its shape because of a series of rings made of cartilage. These rings do not completely encircle the trachea. Instead, they go from the 2 o'clock to 10 o'clock positions. The remainder of the trachea is composed of a flexible membrane that joins the ends of the cartilage rings.
When the cartilage rings are flattened from the top to the bottom, the trachea is said to be collaps...
The anal sacs are located on either side of the anus at the 8 o’clock and 4 o’clock positions; they are positioned just under the skin. They connect to the anus by means of small canals or ducts. Anal sacs produce and store a dark, foul-smelling fluid. These are the same type of organs that a skunk has to scare away its enemies. Although dogs can use these for the same purpose, most dogs live in an environment that has no enemies. Because the sacs are rarely emptied, the fluid builds up, solidifies, and becomes an ideal environment in which bacteria can grow.
Did you know dogs get bladder stones? Bladder stones are rock-like collections of minerals that form in the urinary bladder. The two most common signs of bladder stones are blood in the urine and straining to urinate.