Tag: anatomy

Extrinsic Back Muscles- Functional Anatomy

Extrinsic Back Muscles Extrinsic back muscles connect the occiput, spine, and pelvis to the upper extremity. They elevate and depress the scapula but, mostly, retract the scapula. Click on the images below for more informationContinue reading

Trapezius – Functional Anatomy

Trapezius The trapezius is a triangular muscle that connects the occiput, cervical vertebrae, and thoracic vertebrae to the shoulder girdle through the ribs, manubrium, and sternum. It has three sections: upper, middle and lower. TheyContinue reading

Latissimus Dorsi- Functional Anatomy

Latissimus Dorsi Latissimus dorsi is a broad, flat muscle that connects the mid-back, low-back, and pelvis to the humerus through the thoracic vertebrae, clavicle, and scapula. Latissimus dorsi has extensive attachments and provides complex functionsContinue reading

Rhomboids – Functional Anatomy

Rhomboid Muscles The rhomboids attach the upper thoracic and lower cervical vertebrae to the scapula through the ribs and clavicle. The rhomboids, which are usually thought of as retracting the scapula, are surprisingly active inContinue reading

Levator Scapula – Functional Anatomy

Levator Scapula Levator scapula is a ropy muscle that connects the scapula to the upper cervical vertebrae through the clavicle, manubrium, first rib and lower cervical vertebrae. Levator Scapula is often poorly illustrated without theContinue reading

Deep Abdominals – Functional Anatomy

Deep Abdominals Deep abdominals, or the iliac muscles, connect vertebrae of the lower back and pelvis to the upper femur. They are the strongest flexors of the hip. The iliopsoas also laterally flexes the trunk.Continue reading

Extrinsic Chest Muscles – Functional Anatomy

Extrinsic Chest Muscles   Extrinsic chest muscles, as you can see, originate on the front of the axial skeleton and insert on the upper extremity. Generally speaking, they protract the scapula and draw the humerusContinue reading

Subclavius- Functional Anatomy

Subclavius Subclavius mostly assists in the protraction of the shoulder by depressing the clavicle. Origin -anterior costal cartilage of the first rib Insertion – medial inferior aspect of the clavicle Function – depresses the clavicleContinue reading

Serratus Anterior – Functional Anatomy

Serratus Anterior The serratus anterior is a fan-shaped muscle on the lateral wall of the thorax. It is a powerful protractor of the scapula and prevents the medial border of the scapula from winging out. ItContinue reading

Pectoralis Minor – Functional Anatomy

Pectoralis Minor Pectoralis minor is a fan-shaped muscle in the front of the shoulder that secures the lateral angle of the scapula to the rib cage. Superficially, it is covered by the pectoralis major. Studies for breastContinue reading