What is the pectoralis minor?
What is the pectoralis minor?
The pectoralis minor lies, for the most part, beneath the pectoralis major, arising from the middle ribs and inserting into (attaching to) the scapula (shoulder blade). It aids in drawing the shoulder forward and downward (in opposition to the trapezius muscle).
What does the pectoralis minor do in respiration?
The pectoralis minor originates on the third, fourth, and fifth ribs and inserts on the coracoid process of the scapula; thus, this little muscle connects the shoulder blade to the rib cage. Its major function is to help elevate the rib cage during inhalation, allowing for full, deep breathing.
What happens when pectoralis minor contracts?
When the pectoralis minor contracts, it tilts the shoulder blade in space three-dimensionally: the shoulder blade becomes slightly more parallel to the floor, and it is pulled down and forward, so that when seen from the back, the lower part of the shoulder blade tips out.
What is the difference between pectoralis major and minor?
The pectoralis major extends across the upper part of the chest and is attached to a ridge at the rear of the humerus (the bone of the upper arm). The pectoralis minor lies, for the most part, beneath the pectoralis major, arising from the middle ribs and inserting into (attaching to) the scapula (shoulder blade).
How do you know if you strained your pectoralis minor?
Symptoms of the pec minor injury include;
- Chest pain – can be burning and stabbing.
- Anterior shoulder pain.
- Pain in between shoulder blades in upper back.
- Pain and/or numbness through the inner arm, inside of elbow, into wrist, hand and 4th and 5th fingers.
How do you treat a pulled pectoralis minor?
In isolated pectoralis minor tendon tears, however, a conservative treatment approach is typically recommended. Recommend rest, ice, and anti-inflammatory medication for the first two to four weeks following the injury. The athlete may use an arm sling to increase comfort, but complete immobilization isn’t necessary.
In which animal pectoralis minor muscle is found?
The pectoralis minor is inserted at the coracoid process of the scapula in bonobos and humans and at the supraspinatus tendon in our common chimpanzees, which has not previously been described.
What is the best exercise for the pectoralis major?
Workouts for Building Your Pectoral Muscles
- Pushups. Pushups are the most obvious choice because they require no special equipment and can be done anywhere.
- Dumbbell press. Somewhat like a bench press the dumbbell press is another good choice for building pectoral muscles.
- Bench press.
How long does a pec minor strain take to heal?
The healing and rehab process can take anywhere from 6 months to a year after a surgical pectoralis repair. The first part of the rehab process consists of managing the pain and swelling and initiating a range of motion in the shoulder and arm. Light strength training usually begins about 2 to 3 months after surgery.
Where is pectoralis minor found?
Pectoralis minor muscle (shown in red). The bone shown in blue is the shoulder blade. Pectoralis minor muscle (/ˌpɛktəˈreɪlɪs ˈmaɪnər/) is a thin, triangular muscle, situated at the upper part of the chest, beneath the pectoralis major in the human body.
What is the function of the pectoralis minor muscles?
When the ribs are immobilized, this muscle brings the scapula forward, and when the scapula is fixed, it lifts up the rib cage. There are two parallel pectoralis minor muscles, one on each side of the sternum. Both pectoralis muscles work with the serratus anterior muscles to create a full range of movement for the scapula.
How does the pectoralis minor help with inspiration?
It elevates the ribs for deep inspiration when the pectoral girdle is fixed or elevated. With the scapula stabilized, in a position of good alignment, the pectoralis minor acts as an accessory muscle of inspiration. When the ribs are immobilized, this muscle brings the scapula forward,
Where does pectoralis minor connect to the scapula?
Pectoralis minor, a thin triangular muscle that inserts onto the coracoid process of the scapula, or shoulder blade. Since it connects on the top of the shoulder blade, when it engages it can pull the shoulder blade forward and down. It also functions to draw the shoulders blades away from each other. Imagine hugging yourself.
How does the pectoralis minor help the rib cage?
The pectoralis minor helps to elevate the rib cage when a person takes a deep breath in, just like when you are trying to hold your breath for a long time. Muscles are very metabolically active tissues, meaning that they required a lot of blood in order to function properly and stay healthy.
What is the best stretch for the pectoralis minor?
- Doorway Lunge Stretch. Put your hands on the door frames above head height with your elbows bent.
- Foam Roller Arm Circles: my personal favourite! Lie on a full foam roller with it length ways along your spine including supporting your head.
- Floor Roll Away Stretch.
What is the main function of of pectoral muscles?
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.
What joint does the pectoralis major move?
Pectoralis major is one of the muscles that move the humerus at the shoulder joint. It’s a broad, powerful muscle and the larger of the two pectoralis muscles.