labrum$42913$ - significado y definición. Qué es labrum$42913$
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Qué (quién) es labrum$42913$ - definición

Glenoidal labrum; Glenoid labrum of scapula; Labrum glenoidale; Glenoid labrums
  • Glenoid labrum. Schematic drawing of the transverse section. Morphologic variants of the glenoid labrum with relative distribution in percentage for the anterior labrum. a: 50%. Triangular with line of increased signal intensity along the hyalin articular cartilage. b: 20%. Rounded. c: 7%. Comma-shaped flattened. d: 3%. Absent. e: 15%. Cleaved. f: 8%. Notched. g: Central increase in signal intensity. h: Linear increase in signal intensity. The posterior labrum generally exhibits a triangular or rounded form.

Acetabular labrum         
  • Women are more susceptible to acetabulum labrum tears due to their pelvic anatomy.
  • A complex labral tear. An arthroscopic probe is seen at the junction of the labrum and acetabular rim.
  • Frequent pivoting on a loaded femur as in ballet is a common mechanism for labrum tears in athletes.<ref name=Rylander/> Fouetee
RING OF CARTILAGE THAT SURROUNDS THE ACETABULUM OF THE HIP
Labrum acetabuli; Hip labrum; Labral tear
The acetabular labrum (glenoidal labrum of the hip joint or cotyloid ligament in older texts) is a ring of cartilage that surrounds the acetabulum of the hip. The anterior portion is most vulnerable when the labrum tears.
Labrum (arthropod mouthpart)         
  • Modifications of the labrum (in '''red''') in assorted insects. (A) [[grasshopper]], (B) [[honey bee]], (C) [[butterfly]] (D) [[mosquito]].
  • ''Bembix rostrata'' female using its labrum in sucking the blood out of a fly.
MOUTHPART OF INSECTS AND CRUSTACEANS
Labrum (arthropod anatomy); Labrum (arthropod); Labrum (mouthpart); Labrum (insect)
The labrum is a flap-like structure that lies immediately in front of the mouth in almost all extant Euarthropoda. The most conspicuous exceptions are the Pycnogonida, which probably are chelicerate-relatives.
labrum         
WIKIMEDIA DISAMBIGUATION PAGE
Labral; Labrum (disambiguation); Labrum (human anatomy); Torn labrum; Paralabral; Paralabral cyst
['le?br?m]
¦ noun (plural labra -br?) Zoology a structure corresponding to a lip, especially the upper border of the mouthparts of a crustacean or insect.
Derivatives
labral adjective
Origin
C18: from L., lit. 'lip'; related to labium.

Wikipedia

Glenoid labrum

The glenoid labrum (glenoid ligament) is a fibrocartilaginous structure (not a fibrocartilage as previously thought) rim attached around the margin of the glenoid cavity in the shoulder blade. The shoulder joint is considered a ball and socket joint. However, in bony terms the 'socket' (the glenoid fossa of the scapula) is quite shallow and small, covering at most only a third of the 'ball' (the head of the humerus). The socket is deepened by the glenoid labrum, stabilizing the shoulder joint.

The labrum is triangular in section; the base is fixed to the circumference of the cavity, while the free edge is thin and sharp.

It is continuous above with the tendon of the long head of the biceps brachii, which gives off two fascicles to blend with the fibrous tissue of the labrum.