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Kit Ng, Ph.D.

Anatomy & Physiology Professor

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Tag: Bone

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Atypical vertebrae: C1 and C2

February 25, 2017 Kit Ng

There are two atypical vertebrae in the cervical region: C1 (Atlas) and C2 (Axis). C1 is named Atlas after the greek god who hold up the heavens.  On its superior surface it has two superior articular facets that articulate with the occipital … Continue reading Atypical vertebrae: C1 and C2

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Spina bifida occulta

February 25, 2017February 25, 2017 Kit Ng

Specimen demonstrating incomplete fusion of the sacrum (notice the S1 region).  This was most likely from an individual who was asymptomatic or had mild symptoms.  This form of spina bifida is known as spina bifida occulta. Continue reading Spina bifida occulta

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Sagittal Head model

December 11, 2016 Kit Ng

Model showing the sagittal section of the head, showing the relationship between bone, brain, and upper respiratory tract. Continue reading Sagittal Head model

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Ulna – Left/Right

October 30, 2016 Kit Ng

Locate the anterior aspect of Ulna.  A good landmark is the trochlear notch. When viewed anteriorly, the radial notch point to the side the bone is from, i.e. left ulna will have the radial notch (see below) on the left … Continue reading Ulna – Left/Right

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Radius – Left/Right

October 30, 2016 Kit Ng

Locate the anterior aspect of the radius bone.  At the distal end, the anterior aspect will be smoother than the posterior aspect (there is the dorsal tubercle, a bump). When viewed anteriorly, the radial tubercle towards the proximal end will … Continue reading Radius – Left/Right

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Scapula

October 30, 2016 Kit Ng

Scapula, also known as the “shoulder blade,” is part of the shoulder girdle and connect the clavicle to the humerus.  4 of the muscles originated from the scapula (Supraspinatus, Infraspinatus, Subscapularis and Teres Minor) form the rotator cuff that surrounds … Continue reading Scapula

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Humerus – Left/Right

October 28, 2016 Kit Ng

Identify the olecranon fossa that should belong to the posterior side of the humerus With the olecranon fossa pointing at you, notice the head of the humerus should point medially. Continue reading Humerus – Left/Right

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Patella – Left/Right

October 28, 2016 Kit Ng

Identify the apex of the patella Point the apex away from you and put it on a flat surface.  Whichever side the patella lands on will be the side where it is from. Continue reading Patella – Left/Right

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Fibula – Left/Right

October 26, 2016 Kit Ng

Remember the fibula is the lateral bone of the leg. Locate the lateral malleous, that should point inferiorly. The lateral malleous resembles an asymmetrical triangle.  The longer edge points anteriorly and the shorter edge points posteriorly.  Thus, looking at the … Continue reading Fibula – Left/Right

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Scapula – Left/Right

October 26, 2016 Kit Ng

Identify the spine; that’s easily recognizable and should point posteriorly. Glenoid cavity should then point to the side that the scapula belongs to, i.e. Right scapula has a glenoid cavity points to the right. Continue reading Scapula – Left/Right

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