Structure: Other

Eponychium

Eponychium The structure indicated is the eponychium of the fingernail. The eponychium is a thickened layer of skin which surrounds the nails of the fingers and toes. It serves to protect the area between the nail and the epidermis from infection. The eponychium is often confused with the cuticle. The cuticle is the visible fold of dead skin that forms a semi-circular shape on the proximal nail plate, and it is this layer of dead skin that is removed during a manicure. The eponychium is the living fold of skin which produces the cuticle.

Eponychium

Subacromial Bursa

Subacromial Bursa The structure indicated is the subacromial bursa. The glenohumeral joint is a synovial ball and socket joint between the head of the humerus and the glenoid cavity of the scapula. It is a joint with great mobility, at the expense of joint stability. Movements include: abduction, adduction, medial rotation, lateral rotation, flexion, extension, and circumduction. The joint is stabilised by, surrounding musculature, tendons, ligaments and the bony processes of adjacent structures. The synovial membrane lines the fibrous membrane of the joint capsule and it forms bursae as it passes through various openings in this membrane. Synovial bursae are …

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subacromial bursa