The border cord is a concatenation of nerve cell body clusters that is part of the sympathetic nervous system. The individual portions of the border cord send sympathetic nerves to the neck, chest, sacrum, and abdomen. Like all other nerve branches, border cord-associated nerve branches may be affected by paralysis. What is the border cord? … Boundary Cord: Structure, Function & Diseases
The systemic circulation is also called the great circulation. It carries blood through the majority of the body. The other major circulation of the body is the pulmonary circulation, which carries blood to and from the lungs. What is the circulatory system? The main function of the systemic circulation is to supply oxygenated blood to … Body Circulation: Function, Task & Diseases
The subclavian vein, also called the subclavian vein, runs behind the collarbone above the first rib. It carries blood from the arm toward the heart. What is the subclavian vein? The subclavian vein is one of the veins of the small systemic circulation in the arm and neck. A distinction is made between the right … Subclavian Vein: Structure, Function & Diseases
The subclavian artery becomes the axillary artery in the axillary region. This vessel supplies arterial blood to the entire arm area. Like all other arteries, the axillary artery can be affected by arteriosclerosis, which often results in infarction or necrosis as a late consequence. What is the axillary artery? The subclavian artery is also known … Axillary Artery: Structure, Function & Diseases
The brachiocephalic truncus is a right vascular branch of the aorta and supplies portions of the brain in addition to the neck and right arm. Like any artery, the truncus carries blood rich in oxygen, nutrients, and messengers. Vascular diseases such as arteriosclerosis can affect the brachiocephalic truncus and require surgical intervention. What is the … Truncus Brachiocephalicus: Structure, Function & Diseases
The internal thoracic artery is a smaller branch of the subclavian artery that supplies oxygenated blood to the chest cavity. The arterial vessel plays a role as a graft in procedures such as coronary bypass. Pathologic relevance has the artery like all other arteries, for example, in the context of arteriosclerosis. What is the internal … Internal Thoracic Artery: Structure, Function & Diseases
The stellate ganglion is a collection of nerve cell bodies arising from the fusion of two ganglia of the sympathetic border cord. Sympathetic nerve fibers branch off from the ganglion to the head, neck, arm, heart, and lungs. The stellate ganglion is used in stellate blockade for therapeutic release of venous spasm. What is the … Ganglion Stellatum: Structure, Function & Diseases
The scalenus medius muscle is the longest scalenus muscle and is classified as a neck muscle and respiratory accessory muscle. The skeletal muscle is also called the middle rib elevator and, when contracted bilaterally, enlarges the thorax to facilitate forced inspiration. With the scalenus anterior muscle, the muscle forms the scalenus gap, which gains pathologic … Musculus Scalenus Medius: Structure, Function & Diseases
The scalenus anterior muscle, along with a total of three paired scalenus muscles, is part of the deep neck musculature. It originates from cervical vertebrae 3 to 6 (C3-C6) and pulls obliquely toward the 1st rib. The scalenus anterior muscle performs three main mechanical tasks; it is involved in lateral flexion and rotation of the … Anterior Scalenus Muscle: Structure, Function & Diseases
The inferior cardiac cervical nerve is a sympathetic nerve of the autonomic nervous system. It is one of the three sympathetic cardiac nerves used to promote cardiac activity. In autonomic dysfunction, sympathetic cardiac activity can cause symptoms such as palpitations. What is the inferior cardiac nerve? The human heart is equipped with three cardiac nerves … Inferior Cardiac Nerve: Structure, Function & Diseases
Synonyms Latin: Musculus subclavius Definition The subclavian muscle is a short, narrow muscle that belongs to the deeper shoulder and chest muscles. It is supplied with blood via the internal thoracic artery. It primarily stabilizes the clavicle. It also protects adjacent structures, namely the subclavian artery and vein and the brachial plexus, by cushioning them … Subclavian muscle
