This interactive brain model is powered by the Wellcome Trust and developed by Matt. The trapezius is supplied by either of the superficial cervical arteries, or the superficial branch of the transverse cervical artery. Hello, Yes, your brain anatomy can be visualized on an MRI scan. The sensory innervation is derived from the dorsal ramus of spinal nerves C3-C4. The motor innervation is derived from the spinal accessory nerve (cranial nerve XI). All three heads together: retraction and fixation of the scapula.Inferior head: depression, rotation during arm adduction.Superior head: elevation, rotation during arm abduction.We will consider the different heads of the trapezius: The trapezius fibres originate broadly along the vertical midline of the vertebral column before converging on their insertion points around the acromion, spine of the scapula and lateral one-third of the clavicle. Originating from the superior nuchal line (s), nuchal ligament (s m) and the spinous processes of C7 to T12 (m i), the trapezius muscle converges onto the lateral 1/3 of the clavicle (s), acromion (m) and spine of the scapula (i). It is divided into three distinct segments, named the superior ( s), middle ( m) and inferior ( i) trapezius, which have slightly varied attachment points. Removable muscles, organs, and bones, this STEM anatomy toy can be used as a timed. It is a triangular muscle unilaterally and appears as a trapezoid-shaped muscle when the left and right trapezius are viewed on the back. Toys Interactive Human Body Fully Poseable Anatomy Figure 14 Tall. The trapezius is a primary mover of the scapula that assists in superior and inferior rotation, retraction, and elevation and depression of the scapula and shoulder complex.
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