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9 10, 2018

Latissimus Dorsi

By Dr. Joseph H Volker | 2018-10-10T09:29:34+00:00 October 9th, 2018|Anatomy, Back, Muscles|0 Comments

Latissimus dorsi (lat) is a large, flat triangular muscle which is also the widest muscle in the human body. It begins in the lower portion of the back and tapers as it ascends to a narrow tendon that attaches to the humerus anteriorly. Due to which the movements associated with this muscle include extension, adduction [...]

8 08, 2018

Supraspinatus and Infraspinatus

By Dr. Joseph H Volker | 2018-09-26T09:50:49+00:00 August 8th, 2018|Anatomy, Back, Muscles|0 Comments

The Supraspinatus is a relatively small muscle of the upper back that make up the rotator cuff. The supraspinatus and infraspinatus muscles starts from 2 large fossae, 1 above and 1 below the spine, on the posterior surface of the scapula. They create tendons that insert on the greater tubercle of the humerus. [...]

8 08, 2018

Back Muscles – The Muscles of the Back

By Dr. Joseph H Volker | 2018-10-18T21:20:28+00:00 August 8th, 2018|Anatomy, Back, Muscles|0 Comments

Muscles of the back can be divided into superficial, intermediate, and deep group. Since the all the back muscles originate in embryo (fetus) form by locations other than the back, muscles in the superficial, as well as, intermediate groups, are extrinsic muscles. Anterior rami of spinal nerve innervate them. Muscles associated and involved in movements [...]

8 08, 2018

Zygapophyseal Joints (Facet Joints)

By Dr. Joseph H Volker | 2018-08-30T11:10:41+00:00 August 8th, 2018|Anatomy, Back, Joints and Ligaments|0 Comments

Zygapophyseal Joints are joints that are located in the middle of the superior and inferior articular processes of adjacent vertebrae. Structural resistance to anterior shear forces in the lumbar segments is given by the shape of the zygapophyseal joints, the zygapophyseal joint capsules, the fibers of the anulus fibrosus and the iliolumbar ligaments in the [...]

8 08, 2018


By Dr. Joseph H Volker | 2018-08-30T10:33:07+00:00 August 8th, 2018|Anatomy, Back, Muscles|0 Comments

Subscapularis is a bulky triangular muscle, which fills the subscapular fossa. Origin Subscapularis originates from (a) medial 2/3rd of the costal surface of the scapula and (b) tendinous intermuscular septa connected to the ridges on the bone. Insertion The fibres converge laterally into a broad tendon, which enters in front of the capsule [...]

8 08, 2018

Multifidus Muscles

By Dr. Joseph H Volker | 2018-08-30T10:11:19+00:00 August 8th, 2018|Anatomy, Back, Muscles|0 Comments

The Multifidus muscles is the second group of muscles towards the semispinalis situated deep within this group, span the length of the vertebral column, going through a lateral point of beginning upwards then medially in order to connect with spinous processes and also extending amongst two and four vertebrae. The multifidus muscles are better formed [...]

8 08, 2018

Vertebral Artery

By Dr. Joseph H Volker | 2018-08-30T11:05:46+00:00 August 8th, 2018|Anatomy, Arteries, Back|0 Comments

The vertebral artery is among the main arteries which supplies the brain. It's the first and largest branch of the very first part of the subclavian artery. Origin, Course and Conclusion The vertebral artery originates from the upper aspect of the initial part of the subclavian artery, runs vertically upwards to goes into the foramen [...]

8 08, 2018

Rotator Cuff Muscles

By Dr. Joseph H Volker | 2018-09-26T04:19:55+00:00 August 8th, 2018|Anatomy, Back, Muscles|0 Comments

The rotator cuff is another name for a cluster of 4 different muscles and their tendons that play an important role in providing strength and stability in the shoulder movement. SITS muscles is an abbreviation for this group of muscles with reference to the first letter of their names (Supraspinatus, Infraspinatus, Teres minor and Subscapularis). The [...]

8 08, 2018

Filum Terminale

By Dr. Joseph H Volker | 2018-08-30T10:52:13+00:00 August 8th, 2018|Anatomy, Back|0 Comments

The conical shaped caudal end of the spinal cord lies on the rostral border of the second lumbar vertebra called the conus medullaris. A thin filament covered in pia and including glial cells, ependymal cells, and astrocytes arises out of the conus medullaris. This filament is referred to as die filum terminate internum. It expands [...]

8 08, 2018

Vertebral Level TIV/V

By Dr. Joseph H Volker | 2018-08-30T09:14:51+00:00 August 8th, 2018|Anatomy, Back, Bones and Cartilages|0 Comments

Vertebral levels are used by the doctors in order to ascertain the position of the essential anatomical structures inside body regions while working with patients. The horizontal plane going through the disk that divides thoracic vertebrae TIV and TV is among the very crucial planes in the body because it: goes through the [...]