Attachments and actions of muscles of the pectoral region. Dissection of pectoral region and axilla at university of. The epiphyseal line across the glenoid cavity is the line of fusion. The anatomy of the pectoral nerves and its significance to. Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder. The contents of the axilla region include muscles, nerves, vasculature and lymphatics. It is constructed by 2 clavicle bones and 2 scapulae. Pectoral musclessuperficial muscles of thorax3d dr. Dissection of pectoral region at jvwu by dr neha saini. 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. Sternocostal and clavicular heads of pectoralis major muscle step 3.
The pectoralis major is a large, flat muscle of the pectoral girdle of the upper limb. 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. Course and branches veronica macchi department of human anatomy and physiology, section of anatomy, university of padova, padova, italy. Pectoral region it is anterior part of the chest cavity. In this article, we shall look at the anatomy of the muscles of the pectoral region their attachments, actions and innervation. Bd chaurasiya human anatomy volume 1 pdf upper limb and thorax this book covers a vast portion of the upper body anatomy. Illustrated anatomical parts with images from eanatomy and descriptions of anatomical structures.
The deep fascia of pectoral region also known as pectoral fascia it shows attachment on clavicle, sternum. The pectoral muscles,serratus anterior and mammary gland and its applied aspect. It arises by a collection of 8 digitations from upper eight ribs. A consistent theme in the treatises of early anatomists is awe and wonder at the incredible complexity and variety of the human organism. Learn all about the anatomical features of the muscles of the pectoral region with our flashcard images and videos. Pectoralis major origin anterior sternal half of the clavicle. This paper details the anatomy of the pectoral nerves and discusses the clinical implications of surgery in this region as it relates to the size and function of the pectoral muscles.
Flashcard anatomy of the muscles of the pectoral region. The pectoralis major muscle is enclosed by a fascia known as pectoral fascia while the pectoralis minor and subclavius muscles are enclosed by a deep fascia known as clavipectoral fascia. The axial body runs right down the center axis and consists of everything except the limbs, meaning the head, neck, thorax chest and back. Vishram singh anatomy free pdf download medicforyou. Bd chaurasia human anatomy all 3 volumes pdf free download. Furthermore it participates in forming the anterior wall of the axilla. Full text get a printable copy pdf file of the complete article 520k, or click on a page image below to browse page by page. Human anatomy bd chaurasia free ebook pdf online download. It enclose pectoralis major muscle and also covers deltoid muscle.
Bd chaurasia human anatomy pdf free download all volumes. Chapter 4 skin, superficial fascia, and deep fascia of the neck. In the human body, the region of the thorax between the neck and diaphragm in the front of the body is called the chest. Learning anatomy can be overwhelming because of the sheer amount of information to be understood and. Please help improve this article by adding citations to reliable sources. It decisively shapes the surface anatomy of the breast. Pectoral region it is composed of muscles of the pectoral region which include. General anatomy regions of human body anterior and lateral thoracic regions pectoral region. Muscles of the pectoral region major minor teachmeanatomy. The pectoral region is located on the anterior chest wall. A female patient was operated for removal of the breast on account of cancer. Bd chaurasiya human anatomy volume 3 pdf head, neck, and.
Learn vocabulary, terms, and more with flashcards, games, and other study tools. All of the following are true about the sternum except. There are two such muscles on each side of the sternum breastbone in the human body. May 28, 2018 bd chaurasiya human anatomy volume 1 pdf upper limb and thorax this book covers a vast portion of the upper body anatomy. They are the counterparts of the ilium and ischium of the pelvic girdle. The book comprises of chapters on bones of upper limb, pectoral region, scapular region, forearm and hand, joints of upper limb, wall of thorax, thoracic cavity. Check at your institution if you should do the breast dissection on the male or not. Additional observations on muscular anomalies in human anatomy third series, with a catalogue of the. Dissection of pectoral region and axilla at university of cincinnati college of medicine studyblue flashcards. The corresponding area in an animal can also be referred to as the chest. All specimens were frozen 24 hours postmortem and stored at. Pectoral region definition of pectoral region by medical. Explore and learn about the pectoral muscles with our 3d interactive anatomy atlas. If you like the video than like it, subscribe it and share with your friends.
In terms of comparative anatomy, the human scapula represents two bones that have become fused together. Pectoral region cutaneous innervation the skin of the pectoral region is supplied by. Chaurasia pdf human anatomy upper limb thorax is a comprehensive book for undergraduate students of medicine. The first digitation arises from the 1st and 2nd ribs, while all other digitations arise from their equivalent ribs. Platysma lies in sf subcutaneous muscle, not included in the pectoral region. Aug 08, 2018 thus purely speaking, it is not a muscle of the pectoral region. Often, you may be more interested in functions of the body.
The pectoralis major, pectoralis minor and subclavius muscle. Study 52 dissection of pectoral region and axilla flashcards from grant c. Thus purely speaking, it is not a muscle of the pectoral region. Nov 05, 2017 if you like the video than like it, subscribe it and share with your friends. There is a dissection assistance pdf file that you can use to assist you in your lab preparation. Pectoral branches from the thoracoacromial trunk subscapular artery 11. Lateral pectoral region anatomy, medical imaging and e. The innervation is carried by the medial and lateral pectoral nerves c5t1, direct branches of the brachial plexus.
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. Origin, insertion, and action for the muscles of the pectoral region learn with flashcards, games, and more for free. Pdf anatomical variations of the pectoralis major muscle. It contains four muscles that exert a force on the upper limb. But for benefit, it is defined with the muscles of pectoral region. The upper body section such as bones of pectoral region, scalper region, the forearm, and the anatomy of the hand, joints of the upper limb has been explained in details. A bone marrow biopsy is to be obtained from a patients sternum. Reflect skin and identify branches of intercostal nerves step 2. Just like on a map, a region refers to a certain area. They are the pectoralis major, pectoralis minor, and the serratus anterior. Do not forget to click on bell icon and never miss the new video. Superficial fascia of the pectoral region is fibrofatty it contains mainly breast or mammary gland. All the detailed explanation of the upper body has been covered in the first volume of bd chaurasia human anatomy book vol 1. Old university exam papers of some indian universities.
Bd chaurasiya human anatomy volume 1 pdf upper limb and thorax. Muscles of pectoral region platysma lies in sf subcutaneous muscle, not included in the pectoral region origindeep fascia over the p. This is especially true if the student is able to participate in an anatomy laboratory in which several or many different cadavers are located. Movements of the human shoulder represent the result of a complex dynamic interplay of structural bony anatomy and biomechanics, static ligamentous and tendinous restraints, and dynamic muscle forces. Pectoral girdle anatomy the pectoral girdle is commonly referred to as the shoulder. Read more harshmohan pathology ebook download free in pdf format.
In this part of the article, you will be able to access the. Inter and intraspecific variations in the pectoral muscles. Useful for students of mbbs, bds, bpt and allied health sciences. It comprises of highly detailed and wellversed chapters on the bones of upper limbs as well as the pectoral region, scapular region, the forearm and the anatomy of the hand, joints of upper limbs and so on. Bd chaurasiya human anatomy volume 2 pdf lower limb, abdomen, and pelvis. In this article, we shall learn about the anatomy of the muscles of the anterior chest. This illustration labeled regions of the human body show an anterior and posterior view of the body. The anatomical regions shown compartmentalize the human body. Functions include digestion, respiration, circulation, and reproduction. This is a quiz called muscles of the pectoral region and was created by member toryngve. The presented study attempts to classify individual anatomical variants of the. What is included important links of dissection videos and literature are provided. This dissection covers the pectoral region and breast.
This article covers the anatomy and clinical aspects of the anatomical spaces of the pectoral region. Play this quiz called muscles of the pectoral region and show off your skills. In this video tutorial we go over the anatomy of the pectoral muscles including their location, innervation and functions. Though not considered a complete girdle because it only anterior attachment to the axial skeleton, joined at the sternum by the sternoclavicular joint, it is a delicate girdle considering that it bears no weight on a consistent basis. Lateral pectoral region regio pectoralis lateralis anatomical parts. Apr 28, 2020 the pectoralis major muscle is a strong, fanshaped muscle of the shoulder joint.
I will provide you all possible materials of human anatomy for students and beginners. In this study, we have macroscopically dissected the pectoral region in six common chimpanzees pan troglodytes, five bonobos pan paniscus, and, for comparison purposes, five humans homo sapiens. If you do not like than comment below for your views. Physiology is the study of the functions of the body. The first digitation arises from the 1st and 2nd ribs, while all. The pectoralis major muscle is a strong, fanshaped muscle of the shoulder joint. 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.