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The direction of the microfibrils is called microfibril angle (MFA). In the secondary cell wall of fibres of trees a low microfibril angle is found in the S2-layer, while S1 and S3-layers show a higher MFA . However, the MFA can also change depending on the loads on the tissue. It has been shown that in reaction wood the MFA in S2-layer can ...
It has a low stiffness ~0.6MPa but a high energy restoring percentage ~98%, and efficiently helps flying insects to flap wings or fleas to jump. Spider silk fibril is composed of stiff crystallized β-sheets structure, responsible for strength, and amorphous matrix surrounding, improving toughness and elongation ability. [ 16 ]
A microfibril is a very fine fibril, or fiber-like strand, consisting of glycoproteins and cellulose. It is usually, but not always, ...
As of 2008, 209 horses in 16 U.S. states and one Canadian province were on the registry. [8] BLM undertook a roundup of the horse herd in 1997 to reduce its numbers, and officials expected to do another in late 2000 when the herd size reached 200. [6] By August 1999, there were 180 adult horses and colts on the range. [6]
Points of a horse. Equine anatomy encompasses the gross and microscopic anatomy of horses, ponies and other equids, including donkeys, mules and zebras.While all anatomical features of equids are described in the same terms as for other animals by the International Committee on Veterinary Gross Anatomical Nomenclature in the book Nomina Anatomica Veterinaria, there are many horse-specific ...
The horse is subject to developing corns at the angles of the bar. The horse tends to grow long-toes with low heels, moving the hoof tubules in horizontal direction, and so it reduces shock absorption ability and increases the risk of lameness.
It forms the "forearm" of the horse along with the ulna. Ulna: caudal to the radius, it is fused to that bone in an adult horse. Shoulder joint (scapulohumeral joint): usually has an angle of 120-130 degrees when the horse is standing, which can extended to 145 degrees, and flexed to 80 degrees (such as when the horse is jumping an obstacle).
Lists of horse-related topics are lists related to horses. They include lists of breeds, related species, individual horses (historical and fictional), race horses, horse race results and horse shows.