1. table press

Bench press is the abbreviation of supine press, also called bench press or bench press. Mainly practice pectoralis major, pectoralis minor, deltoid toe, triceps brachii and elbow muscles, as well as serratus anterior, biceps brachii, coracoid brachii and forearm muscles.

push-up

Push-ups (English: push-ups; Push-ups. They are called push-ups in Chinese mainland, push-ups in Taiwan Province, China and palm pressure in Hong Kong and Macao. Common fitness exercises help to increase the effect of pectoralis major exercise.

3. Flexion and extension of parallel bars arm

The arm flexion and extension of parallel bars is mainly to practice pectoral muscle, triceps brachii and deltoid muscle (toe), as well as latissimus dorsi and trapezius muscle. The equipment needed is the best parallel bars. When the initial practitioner is weak, he can choose benches, beds and other living furniture and take the same action (because stepping on the ground can reduce the weight load).

Extended data:

Composition structure and function

The pectoral muscles are divided into upper limb muscles and proper pectoral muscles.

The intercostal nerve and the upper 1 1 pair of the anterior branch of the thoracic nerve are called intercostal nerve, and the 12 pair of the anterior branch of the thoracic nerve is called subcostal nerve, all of which are accompanied by blood vessels of the same name. The lower 6 pairs of intercostal nerves penetrate into the intercostal space through the deep surface of the costal arch and enter the abdominal wall. Intercostal nerve is directly attached to the intrathoracic fascia and parietal pleura before and after intercostal space.

Intercostal artery and vein, intercostal artery is divided into posterior intercostal artery and anterior intercostal artery, the former is a branch of thoracic aorta, and the latter is a branch of internal thoracic artery in 1 ~ 6 intercostal space or a branch of phrenic artery in 7 ~ 9 intercostal space, which anastomoses in front of intercostal space.

The posterior intercostal artery runs between the upper and lower ribs at the back of the intercostal space and the deep surface of the intrathoracic fascia, runs between the intercostal internal muscle and the intercostal innermost muscle along the intercostal groove in the middle of the intercostal space, and anastomoses with the anterior intercostal artery forward. The arrangement of blood vessels and nerves is veins, arteries and nerves from top to bottom, to the front of intercostal space, and runs inside intercostal internal muscles.

Intercostal vein includes anterior intercostal vein and posterior intercostal vein, accompanied by homonymous artery, and the vein is located above the artery. The posterior intercostal vein is directly injected into azygos vein or indirectly injected into azygos vein through semi-azygos vein and accessory hemiazygos vein; Inject the internal thoracic vein forward through the anterior intercostal vein. 1 and the second pair of posterior intercostal arteries originated from the neck trunk of subclavian artery, and 3 ~ 1 1 pair of posterior intercostal arteries originated from thoracic aorta.

References:

Baidu encyclopedia-pectoral muscle