What Is The Action Of The Pectoralis Major Muscle
Camila Farah
The pectoralis major pectoralis minor serratus anterior and subclavius.
What actions does the pectoralis major do. A developed pectoralis major is most evident in males as the breasts of a. It assists in adduction. Pectoralis major clavicular head muscle pain information.
Fiber direction from origin to insertion is important in understanding how this muscle creates its actions. It s innervated by both medial and lateral pectoral nerves. The pectoralis major muscle contributes to pain in the chest shoulder breast and upper back. This action is important in activities such as climbing.
Acting together with the of latissimus dorsi muscle the pectoralis major muscle pulls the trunk forwards or upwards when its humeral attachment is fixed. When acting from the humeral attachment the pectoralis major muscle also facilitates the act of inspiration. The two pectoralis major muscles commonly referred to as the pecs are the muscles that create the bulk of the chest. These muscles help pull your arm across the front of your body.
RELATED ARTICLE :
- what are the spanish speaking countries in central america
- what are the signs of a dog going into labor
- what are the two main parts of the nervous system
Actions and functions one of the major functions of the pectoralis major muscle is production of movements particularly in the shoulder joints. One of the action is flexion of the humerus long bone of the upper arm and this is demonstrated by moving a straight arm forward. It consists of a clavicular part and a sternal part both converging to a flat tendon that inserts on the humerus. Pectorals provide range of motion to the arms and facilitate actions such as pushing or pulling with the arms and raising or lowering the shoulder.
Its major actions are adduction or depression of the arm in opposition to the action of the deltoideus muscle and rotation of the arm forward about the axis of the body. There are four basic actions of the shoulder joints. Injury to the pectoralis major can cause shoulder pain and limit your ability to use your arm fully. Recommended muscle anatomy books.
In this article we shall look at the anatomy of the muscles of the pectoral region their attachments actions and innervation. The pectoral region is located on the anterior chest wall. The origin of pectoralis is broad and its insertion is small. Of these two chest muscles the pectoralis major comprises the bulk of the pectoral muscle while the pectoralis minor is a thin triangular shaped muscle found underneath the pectoralis major.
Pectoralis Major Muscle Anatomy Pectoral Muscles Anatomy
Pec Major Origin And Insertion Google Search Anatomy Education Human Anatomy And Physiology Muscle Anatomy
Pectoralis Minor Human Anatomy And Physiology Sports Massage Therapy Muscle Anatomy
Pectoralis Minor Origin Insertion Action Muscle Anatomy Human Anatomy And Physiology Massage Therapy
Pectoralis Major Muscle Muscle Anatomy Arm Muscle Anatomy Human Anatomy
Pin On Biology
An Image Showing The 2 Heads Of The Pectoralis Major Muclse Clavicular And Sternal Heads Attached To The Upper Limb Major Muscles Muscle Muscle Anatomy
Pectoralis Major Muscle Iyengaryoga Restorativeyoga Typesofyoga Yinyoga Yoga Yogaalliance Major Muscles Bench Press Muscles Worked Pectoral Muscles
Pectoral Girdle Anatomy Bones Muscles Function Diagram Shoulder Muscles Shoulder Anatomy Shoulder Blade Muscles
Pectoralis Major Muscle Shoulder Muscle Anatomy Biceps Brachii Muscle Arm Muscle Anatomy
Pectoralis Major Muscle Expanded View Biceps Brachii Muscle Muscle Anatomy Bicep Muscle
Pectoral Girdle Anatomy Bones Muscles Function Diagram Shoulder Blade Muscles Muscle Anatomy Pectoral Muscles
Source : pinterest.com
