| Pretracheal lymph nodes | |
|---|---|
 5. Pretracheal | |
| Details | |
| System | Lymphatic system |
| Identifiers | |
| Latin | Nodi lymphoidei praetracheales |
| Anatomical terminology | |
The pretracheal lymph nodes are lymph nodes located anterior to the trachea in the neck.
| Pretracheal lymph nodes | |
|---|---|
| 5. Pretracheal | |
| Details | |
| System | Lymphatic system |
| Identifiers | |
| Latin | Nodi lymphoidei praetracheales |
| Anatomical terminology | |
The pretracheal lymph nodes are lymph nodes located anterior to the trachea in the neck.
The pretracheal lymph nodes lie anterior to the trachea. [1] They follow the anterior jugular veins either side of the midline. [1] They drain into the deep cervical lymph nodes on the right and the thoracic duct on the left. [1]
The neck is the part of the body on many vertebrates that connects the head with the torso and provides the mobility and movements of the head. The structures of the human neck are anatomically grouped into four compartments; vertebral, visceral and two vascular compartments. Within these compartments, the neck houses the cervical vertebrae and cervical part of the spinal cord, upper parts of the respiratory and digestive tracts, endocrine glands, nerves, arteries and veins. Muscles of the neck are described separately from the compartments. They bound the neck triangles.
The trachea, also called the windpipe, is a cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs. The trachea extends from the larynx and branches into the two primary bronchi. At the top of the trachea the cricoid cartilage attaches it to the larynx. The trachea is formed by a number of horseshoe-shaped rings, joined together vertically by ligaments over their substance and by the trachealis muscle at their ends. The epiglottis closes the opening to the larynx during swallowing.
The mediastinum is the central compartment of the thoracic cavity surrounded by loose connective tissue, as an undelineated region that contains a group of structures within the thorax. The mediastinum contains the heart and its vessels, the esophagus, the trachea, the phrenic and cardiac nerves, the thoracic duct, the thymus and the lymph nodes of the central chest.
The neck dissection is a surgical procedure for control of neck lymph node metastasis from squamous cell carcinoma (SCC) of the head and neck. The aim of the procedure is to remove lymph nodes from one side of the neck into which cancer cells may have migrated. Metastasis of squamous cell carcinoma into the lymph nodes of the neck reduce survival and is the most important factor in the spread of the disease. The metastases may originate from SCC of the upper aerodigestive tract, including the oral cavity, tongue, nasopharynx, oropharynx, hypopharynx, and larynx, as well as the thyroid, parotid and posterior scalp.
The carotid sheath is an anatomical term for the fibrous connective tissue that surrounds the vascular compartment of the neck. It is part of the deep cervical fascia of the neck, below the superficial cervical fascia meaning the subcutaneous adipose tissue immediately beneath the skin.
Mediastinitis is inflammation of the tissues in the mid-chest, or mediastinum. It can be either acute or chronic. It is thought to be due to four different etiologies:
The posterior triangle is a region of the neck.
The anterior jugular vein is a vein in the neck.
The deep cervical fascia lies under cover of the platysma, and invests the muscles of the neck; it also forms sheaths for the carotid vessels, and for the structures situated in front of the vertebral column. Its attachment to the hyoid bone prevents the formation of a dewlap.
The tracheobronchial lymph nodes are lymph nodes that are located around the division of trachea and main bronchi.
Cervical lymph nodes are lymph nodes found in the neck. Of the 800 lymph nodes in the human body, 300 are in the neck. Cervical lymph nodes are subject to a number of different pathological conditions including tumours, infection and inflammation.
The deep cervical lymph nodes are a group of cervical lymph nodes found near the internal jugular vein in the neck.
The submental glands are situated between the anterior bellies of the digastric muscle and the hyoid bone.
The superficial cervical lymph nodes are lymph nodes that lie near the surface of the neck.
The submandibular lymph nodes, three to six in number, are lymph nodes beneath the body of the mandible in the submandibular triangle, and rest on the superficial surface of the submandibular gland.
The efferent vessels of the tracheobronchial lymph nodes ascend upon the trachea and unite with efferents of the internal mammary and anterior mediastinal glands to form the right and left bronchomediastinal trunks.
The deep anterior cervical lymph nodes are found near the middle cricothyroid ligament and the trachea.
The anterior cervical lymph nodes are a group of nodes found on the anterior part of the neck, in front of the sternocleidomastoid muscle. These can be grouped into a deep and superficial group.
The thyroid lymph nodes are deep anterior cervical lymph nodes found near the thyroid gland on the neck.
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