The automotive industry comprises a wide range of companies and organizations involved in the design, development, manufacturing, marketing, and selling of motor vehicles. It is one of the world's largest economic sectors by revenue. The automotive industry does not include industries dedicated to the maintenance of automobiles following delivery to the end-user, such as automobile repair shops and motor fuel filling stations.
The Joint Chiefs of Staff (JCS) is a body of senior uniformed leaders in the United States Department of Defense which advises the president of the United States, the secretary of defense, the Homeland Security Council and the National Security Council on military matters. The composition of the Joint Chiefs of Staff is defined by statute and consists of the chairman of the Joint Chiefs of Staff (CJCS), vice chairman of the Joint Chiefs of Staff (VCJCS), the military service chiefs from the Army, Marine Corps, Navy, and Air Force, and the chief of the National Guard Bureau, all appointed by the president following Senate confirmation. Each of the individual military service chiefs, outside their Joint Chiefs of Staff obligations, works directly for the secretary of the military department concerned, i.e., secretary of the Army, secretary of the Navy, and the secretary of the Air Force.
A ventricle is one of two large chambers toward the bottom of the heart that collect and expel blood received from an atrium towards the peripheral beds within the body and lungs. The atrium primes the pump.
The pectoralis major is a thick, fan-shaped muscle, situated at the chest of the human body. It makes up the bulk of the chest muscles and lies under the breast. Beneath the pectoralis major is the pectoralis minor, a thin, triangular muscle. The pectoralis major's primary functions are flexion, adduction, and internal rotation of the humerus. The pectoral major may colloquially be referred to as "pecs", "pectoral muscle" or "chest muscle" due to it being the largest and most superficial muscle in the chest area.
Costochondritis, also known as chest wall pain, costosternal syndrome, or costosternal chondrodynia is an acute and often temporary inflammation of the costal cartilage, the structure that connects each rib to the sternum at the costosternal joint. The condition is a common cause of chest pain. Though costochondritis often resolves on its own, it can be a recurring condition that has little or no signs of onset.
The subclavius is a small triangular muscle, placed between the clavicle and the first rib. Along with the pectoralis major and pectoralis minor muscles, the subclavius muscle makes up the Anterior Axioappendicular Muscles also known as anterior wall of the axilla.
The medial pectoral nerve arises from the medial cord of the brachial plexus and through it from the eighth cervical and first thoracic roots.
The sternocostal triangle or foramina of Morgagni are small zones lying between the costal and sternal attachments of the thoracic diaphragm. Important vessels that pass through these bilateral foramina include the superior epigastric arteries as terminations of the internal thoracic arteries, with accompanying veins and lymphatics.
The atria of the heart are separated from the ventricles by the coronary sulcus. The structure contains the trunks of the nutrient vessels of the heart, and is deficient in front, where it is crossed by the root of the pulmonary trunk. On the posterior surface of the heart, the coronary sulcus contains the coronary sinus.
The anterior interventricular sulcus is one of two grooves that separates the ventricles of the heart, the other being the posterior interventricular sulcus.
The sternocostal joints also known as sternochondral joints, are synovial plane joints of the costal cartilages of the true ribs with the sternum, with the exception of the first, which is a synchondrosis since the cartilage is directly united with the sternum. The ligaments connecting them are:
The posterior interventricular sulcus or posterior longitudinal sulcus is one of the two grooves that separates the ventricles of the heart and is on the diaphragmatic surface of the heart near the right margin. The other groove is the anterior interventricular sulcus, situated on the sternocostal surface of the heart, close to its left margin.
A plane joint is a synovial joint which, under physiological conditions, allows only gliding movement.
The sinoatrial nodal artery is an artery of the heart which supplies the sinoatrial node, the natural pacemaker center of the heart, and arises from the right coronary artery in around 60% of people. In about 40% of cases, the sinoatrial artery is a branch of the left circumflex coronary artery. In less than 1% of humans, the artery has an anomalous origin directly from the coronary sinus, descending aorta, or distal right coronary artery.
Where the connecting medium is hyaline cartilage, a cartilaginous joint is termed a synchondrosis. An example of a synchondrosis joint is the first sternocostal joint. In this example, the rib articulates with the manubrium via the costal cartilage.
The Radiate sternocostal ligaments are fibrous bands that cross from the sternal end of the costal cartilage to the ventral part of the sternum.
Sternocostal ligament may refer to:
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