The actions of the trapezius muscle is largely dependent on the direction of the fibres that are contracting. Descending (upper) fibers Lateral flexion of neck Flexio lateralis colli 1/3 Synonyms: Flexio lat
Picture 1. Trapezius anatomy: origin, insertions, actions Video 1. Trapezius anatomy: origin, insertion, action Trapezius Pain Acute Trapezius Pain Acute pain in the trapezius muscle can be caused by a contusion, strain or tear. Trapezius Strength Test Decreased strength in the trapezius speaks for...
The trapezius is present in the neck, shoulders, back, and thorax regions. Most of its actions are in the shoulders, where the muscle inserts onto the scapula. When you shrug your shoulder, for example, you're elevating the scapula. Scapula elevation is exactly what it sounds like: it's...
The trapezius muscle is innervated by the accessory nerve (CN XI). Its blood supply stems from branches of the occipital, superficial cervical, transverse cervical and dorsal scapular arteries. The main function of the trapezius is to produce lateral flexion and contralateral rotation of the head...
The most lateral of he Erector Spinae Muscles The Trapezius Muscle. The "I Don't Know" Muscles. This muscle goes down the back a bit, and kind of underneath the deltoid muscle. 1 The Deltoid Muscles. Found over the shoulder. 2 The Teres Minor Muscle. Above the Tricep. (The tricep ...
Shoulder muscles move the shoulder blades and upper arm bones. The main shoulder muscles are trapezius, deltoid, pectoralis major and 4 rotator cuff muscles: subscapularis, supraspinatus, infraspinatus and teres minor. The list of muscles and their functions are presented below. Muscle attachments ...
"Four-headed" (Quad- 4)Location- Anterior portion of the femur;Action - knee extension and hip flexion Trapezius Location- Large, triangular muscle originating at the back of the neck, outer part of the shoulder blade; Action- Movement of the scapula Hamstrings Location- Posterior portion of ...
Human muscle system - Evolution, Anatomy, Function: The arrangement of striated muscle in modern humans conforms to the basic plan seen in all pronograde quadrupedal vertebrates and mammals (that is, all vertebrates and mammals that assume a horizontal a
(occipitomastoid suture), and sphenoid bones.22,24Externally, the most prominent part of the squamous portion of the occipital bone is the external occipital protuberance, specifically the inion, to which the nuchal ligament and trapezius muscles attach.22The planum occipitale is the smooth portion...
Skeletal Muscle Organization | Connective Tissue and Layers 6:04 Origin & Insertion of Muscles | Definition, Actions & Examples 6:14 Muscles of the Head & Neck | Anatomy, Motion & Support 7:56 5:58 Next Lesson Muscles of the Vertebral Column: Support & Movement Axial & Trunk Muscle...