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The rhomboid muscles (/ ˈ r ɒ m b ɔɪ d /), often simply called the rhomboids, are rhombus-shaped muscles associated with the scapula. There are two rhomboid muscles on each side of the upper back: [ 1 ] [ 2 ] [ 3 ]
Traditionally, in two-dimensional geometry, a rhomboid is a parallelogram in which adjacent sides are of unequal lengths and angles are non-right angled.. The terms "rhomboid" and "parallelogram" are often erroneously conflated with each other (i.e, when most people refer to a "parallelogram" they almost always mean a rhomboid, a specific subtype of parallelogram); however, while all rhomboids ...
The rhomboid major is a skeletal muscle of the back that connects the scapula with the vertebrae of the spinal column. [1] It originates from the spinous processes of the thoracic vertebrae T2–T5 and supraspinous ligament ; it inserts onto the lower portion of the medial border of the scapula . [ 2 ]
rhomboid major, rhomboid minor, trapezius: 2 1 deltoid, clavicular/acromial/scapular spinal parts Upper limb, Shoulder, Right/left clavicle, acromion, spine of scapula: deltoid tuberosity of humerus: primarily posterior circumflex humeral artery: axillary nerve: abducts, flexes, and extends shoulder: latissimus dorsi: 2 1 teres major
In geometry, a parallelepiped is a three-dimensional figure formed by six parallelograms (the term rhomboid is also sometimes used with this meaning). By analogy, it relates to a parallelogram just as a cube relates to a square. [a] Three equivalent definitions of parallelepiped are
In human anatomy, the rhomboid minor is a small skeletal muscle of the back that connects the scapula to the vertebrae of the spinal column. [1] It arises from the nuchal ligament , and the 7th cervical and 1st thoracic vertebrae and intervening supraspinous ligaments ; it inserts onto the medial border of the scapula .
Rhomboid, either a parallelepiped or a parallelogram that is neither a rhombus nor a rectangle; Rhombic antenna; Rhombic Chess; Flag of the Department of North Santander of Colombia, containing four stars in the shape of a rhombus; Superellipse (includes a rhombus with rounded corners)
In geometry, a rhombohedron (also called a rhombic hexahedron [1] [2] or, inaccurately, a rhomboid [a]) is a special case of a parallelepiped in which all six faces are congruent rhombi. [3] It can be used to define the rhombohedral lattice system , a honeycomb with rhombohedral cells.