WebJan 17, 2024 · The trachea, or windpipe, is a tube that connects the pharynx or larynx to the lungs, allowing the passage of air. It is lined with pseudostratified ciliated columnar … WebEpithelium, endothelium and mesothelium are three types of epithelial cell layers that line your internal organs, body cavities and form the outer layer of your skin. Epithelium generally lines pathways that are open to the external environment, such as your respiratory tract and digestive system.

Respiratory: The Histology Guide - University of Leeds

WebThe trachea then divides into two smaller tubes called bronchi: one bronchus for each lung. The trachea is composed of about 20 rings of tough cartilage. The back part of each ring is made of... WebThe pleurae consist of two layers. The visceral pleura is the layer that is superficial to the lungs, and extends into and lines the lung fissures (Figure 2). In contrast, the parietal pleura is the outer layer that connects to the … something special out and about friends

Trachea (Windpipe): Function and Anatomy - Cleveland …

WebBronchi and Bronchial Tree. In the mediastinum, at the level of the fifth thoracic vertebra, the trachea divides into the right and left primary bronchi. The bronchi branch into smaller and smaller passageways until they terminate in tiny air sacs called alveoli. The cartilage and mucous membrane of the primary bronchi are similar to that in ... WebNov 28, 2024 · Contents of the thoracic cavity; Superior mediastinum: Thymus, trachea, esophagus, aortic arch, brachiocephalic trunk, left common carotid artery, left subclavian artery, internal thoracic arteries, superior vena cava, left superior intercostal vein, brachiocephalic veins, phrenic nerves, vagus nerves, left recurrent laryngeal nerve, … WebFeb 18, 2015 · Tracheal cartilages. In the trachea, or windpipe, there are tracheal rings, also known as tracheal cartilages. Cartilage is strong but flexible tissue. The tracheal cartilages help support the ... small claims res judicata