What kind of membrane lines the inside of the trachea

The trachea is also lined with tiny hair-like structures called cilia. These help push mucus that contains debris or pathogens out of the trachea. A person then either swallows or spits out the mucus. The trachea runs parallel to the esophagus and lies just in front of it. The back of the trachea is softer to allow the esophagus to expand when a person is eating.

Due to their proximity, a small piece of cartilage in the larynx automatically covers the opening of the trachea to prevent food or drink from getting into it when the person is eating. If food or drink do get into the trachea, this typically causes the person to cough.

If a piece of food is particularly large, it could become trapped in the trachea and obstruct breathing. The primary function of the trachea is to transport air to and from the lungs.

Without a trachea, a person would not be able to breathe. In addition to transporting air, the trachea helps defend against disease. The mucus in the trachea helps capture microorganisms such as viruses and harmful bacteria before they enter the lungs. During the process of swallowing food, the esophagus expands into the space normally occupied by the trachea.

The incomplete cartilage rings of the trachea allow it to narrow and permit the esophagus to expand into its space. Finally, the loose connection of the adventitia allows the trachea to move within the neck and thorax, aiding the lungs in their expansion and contraction during breathing.

By: Tim Taylor. Serous membranes have special names given according to their location. For example, the serous membrane that lines the thoracic cavity and covers the lungs is called pleura. Connective tissue membranes contain only connective tissue.

Synovial membranes and meninges belong to this category. Synovial membranes are connective tissue membranes that line the cavities of the freely movable joints such as the shoulder, elbow, and knee. A synovial membrane is a type of connective tissue membrane that lines the cavity of a freely movable joint. For example, synovial membranes surround the joints of the shoulder, elbow, and knee.

Fibroblasts in the inner layer of the synovial membrane release hyaluronan into the joint cavity. The hyaluronan effectively traps available water to form the synovial fluid, a natural lubricant that enables the bones of a joint to move freely against one another without much friction. This synovial fluid readily exchanges water and nutrients with blood, as do all body fluids.

The epithelial membrane is composed of epithelium attached to a layer of connective tissue, for example, your skin. The mucous membrane is also a composite of connective and epithelial tissues.