Dissection of pectoral region and axilla at university of cincinnati college of medicine studyblue flashcards. Kelliher 2 1university of bridgeport college of naturopathic medicine, bridgeport, usa and. Study 52 dissection of pectoral region and axilla flashcards from grant c. Just like on a map, a region refers to a certain area. Anatomical variations of the pectoralis major muscle. The pectoral region is located on the anterior chest wall. Pectoralis major origin anterior sternal half of the clavicle. How to develop a mans pectorals with strength training exercises. It enclose pectoralis major muscle and also covers deltoid muscle. Axillary lymph nodes anterior or pectoral group receive lymph from upper half of anterior wall trunk and from major part of breast. The upper extremity should be moved into abduction gently and progressively so that muscle tissue is not torn and the humerus not broken. Pectoral ancient egypt, a type of jewelry worn in ancient egypt. Play this quiz called muscles of the pectoral region and show off your skills.
The sternal head receives innervation from the c7, c8 and t1 nerve roots, via the lower trunk of the brachial plexus and the medial pectoral nerve. It contains four muscles that exert a force on the upper limb. Pectoral definition is something worn on the breast. Pm is mainly innervated by the lateral pectoral nerve.
Pectoralis major muscle, commonly referred to as pectorals or pecs pectoral fins of an aquatic animal, such as a whale or fish, located on both sides of. Unilateral presentation of three muscle variants in the pectoral region case report eur. The vascular territory of the acromiothoracic axis journal of plastic. Pdf the aim of this study was to analyse the organization of the deep fascia of the pectoral. Pectoral definition, of, in, on, or pertaining to the chest or breast. Snout moderately long, preoral length about as long as distance from mouth. Traditionally, most upper body pulling exercises have been. Medial half of clavicle, anterior surface of sternum, first 7 costal cartilages, aponeuris of external oblique 2. Posterior or scapular group receive lymph from posterior wall of upper half of trunk and from axillary tail of breast. Lateral lip of intertubercular sulcus of humerus 3. The deep fascia of the pectoral region is morphologically and functionally different from that of. Unilateral presentation of three muscle variants in the. Deep muscles of the chest, including pectoralis minor, serratus anterior, and subclavius gray 1918 pectoralis major is a thick, fanshaped muscle, which makes up the bulk of the chest.
A second pectoral muscle, the pectoralis minor, lies beneath the pectoralis. Sep 23, 2015 this video addresses the surface anatomy of the pectoral and shoulder regions. Anterior pectoral region and the female breast prof. Muscles of pectoral region platysma lies in sf subcutaneous muscle, not included in the pectoral region origindeep fascia over the p. This region is of clinical importance in the female because of the mammary gland and its implication in cancer.
Muscles that position the pectoral girdle are located either on the anterior thorax. The axial body runs right down the center axis and consists of everything except the limbs, meaning the head, neck, thorax chest and back. Pectoralis definition of pectoralis by the free dictionary. A geospatial pdf contains information that is required to georeference location data. A developed pectoralis major is most evident in males, as the breasts of a female typically hide the pectoral muscles. During the routine dissection of a male cadaver in the department of anatomy, shri b m patil medical college bijapur, india, we found a long ribbon like muscle in right pectoral region, which originated from right 5 th and 6th ribs at costochondral junction, in between the pectoralis major and pectoralis minor muscles tablefig1. Pectoralis major pectoralis minor subclavius serratus anterior muscles of the pectoral region the pectoral region is the one located on the anterior chest wall. Pdf a novel approach for removal of pectoral muscles in. The pectoral region the pectoral region is located on the anterior aspect of the thorax it contains muscles that belong to the upper limb. Between the medial ends of the clavicles is the suprasternal or jugular notch. Current literature shows activation of different muscle groups during different postures of salat, including biceps brachii, triceps brachii, pectoralis major, scapular musculature, rectus femoris, biceps femoris, tibialis anterior and gastrocnemius. The supply to the sternum was determined as indirect.
Accessory muscle of pectoral region intervening between the pectoralis major. The pectoralis major receives dual motor innervation by the medial pectoral nerve and the lateral pectoral nerve, also known as the lateral anterior thoracic nerve. The poitrinal, pectoral, or breast plate was formed of plates of metal rivetted together, which covered the breast and shoulders of the horse, it was commonly adorned with foliage, or other ornaments engraved or embossed. Pdf segmentation of the pectoral muscle in breast mri. Pectoral region in this lesson, we will first examine the pectoral region. The sternal angle is located at the level of the third rib the sternal angle is at the level of the disc between the 4th and 5th thoracic vertebrae. Adobe acrobat pro dc its not free, but if you need to edit and create pdfs professionally, adobe acrobat pro dc is the software for you. Lateral pectoral region definition of lateral pectoral. Unusual concurrence of intermediate pectoralis muscle.
The pectoral fascia is a thin lamina, covering the surface of the pectoralis major, and sending numerous prolongations between its fasciculi. Rhazes was a prolific writer and compiler of medical knowledge. Authors acknowledge the immense help which was received from the scholars whose articles were cited and included in references of this. Section 1 upper limb anatomy 1 with regard to the pectoral girdle. Dissection of pectoral region and axilla at university of. When geospatial data is imported into a pdf, acrobat retains the geospatial coordinates. Pectoralis article about pectoralis by the free dictionary. The scalene triangle lies in the thoracic outlet area. The anatomical regions shown compartmentalize the human body. A bone marrow biopsy is to be obtained from a patients sternum. This video addresses the surface anatomy of the pectoral and shoulder regions. Pdf anatomical variations of the pectoralis major muscle.
Central group receives lymph from preceding groups and drains into apical group. Pectoralis major pectoralis minor subclavius serratus anterior muscles of the pectoral region the pectoral region is the the muscles of the pectoral region are. Pectoral branches from the thoracoacromial trunk subscapular artery 11. Second we will examine superficial nerves and vessels of the upper limb in preparation for its study. Superficial fascia of the pectoral region is fibrofatty it contains mainly breast or mammary gland. Geospatial data can be either vector or raster based or a combination of both. Pectoral region definition of pectoral region by medical. Pdf automatic identification of the pectoral muscle in. The superbly rhythmic composition is framed by an architectonic design obtained by leaving open all. Dissection of the pectoral region and thoracic cage flashcards by.
Platysma lies in sf subcutaneous muscle, not included in the pectoral region. Therefore, to directly target the greatest amount of muscle fibers in the lower pectoral region, get after dips weighted or machine, decline presses barbell, dumbbell, or machine, and dumbbell decline flies. Start studying pectoral region learn vocabulary, terms, and more with flashcards, games, and other study tools. Posterior scapular region supraspinatus supraspinous fossa of the scapula above the spine on the posterior surface of the scapula they form tendons that insert on the greater tubercle of the humerus upper facet suprascapular nerve the supraspinatus initiates abduction of the arm 015degree infraspinatus it should be the infraspinatus. The dorsoepicondylar medial muscle described in this case includes anatomical origins that involve the latissimus dorsi and the pectoralis major muscles, the dorsipecturummedial epicondylar being the most accurate designation since it was the latissimus dorsi muscle that contributes most in its formation. Look up pectoral in wiktionary, the free dictionary. The pectoral muscle represents a predominant density region in most mediolateral oblique mlo views of mammograms. In case a person feels tenderness in the torso, or more specifically around the region of the heart, they should by no means be excessively alarmed, and they should make an attempt to find out if it is just pain in the pectoral muscle or actually a heart seizure.
Pectoral region it is anterior part of the chest cavity. Pectoral region and axilla dissection instructions. Write origin, insertion, action and nerve supply of pectoralis major and. All of the following are true about the sternum except.
With the coordinates, you can view and interact with the pdf to find and mark location data. Pectoralis major article about pectoralis major by the free. Pectoral muscles colloquially referred to as pecs are the muscles that connect the front of the human chest with the bones of the upper arm and shoulder. Explore and learn about the pectoral muscles with our 3d interactive anatomy atlas. Massage of this area is used to address the common issue of upper back pain. The authors have not experienced diaphragmatic paralysis. Mar 12, 2020 pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder. A likely etymologic source of the term pectoral is pectus, the latin noun referring to the breast or mammary gland and, by extension, to the chest as a whole. Body stocky, not strongly tapering back from pectoral region. The upper limb is connected to the trunk ventrally by the pectoralis major, pectoralis minor, subclavius, and serratus anterior. A novel approach for removal of pectoral muscles in digital mammogram article pdf available in procedia computer science 46. Pullovers and close grip pulldowns target the sternocostal pecs. This supply is associated with a previously undescribed origin of the pectoralis major muscle in this region.
The deep fascia of pectoral region also known as pectoral fascia it shows attachment on clavicle, sternum. Manubrium and sternum upto sixth costal cartilages cartilages of all the true ribs, aponeurosis of the abdominal external oblique insertion by a bilaminar tendon into the lateral lip of the bicipital groove of the humerus innervation medial and lateral pectoral nerves. The presented study attempts to classify individual anatomical variants of the pectoralis major. Pectoral muscle segmentation is a crucial step in various computeraided applications of breast magnetic resonance imaging mri. There are two such muscles on each side of the sternum breastbone in the human body.
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