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The rabbit's hind limb (lateral view) includes muscles involved in the quadriceps and hamstrings. Rabbits have muscled hind legs that allow for maximum force, maneuverability, and acceleration that is divided into three main parts: foot, thigh, and leg. The hind limbs of a rabbit are an exaggerated feature.
The second paper, by Hugh Huxley and Jean Hanson, is titled "Changes in the cross-striations of muscle during contraction and stretch and their structural interpretation". It is more elaborate and was based on their study of rabbit muscle using phase contrast and electron microscopes. According to them: [19]
Actin is a family of globular multi-functional proteins that form microfilaments in the cytoskeleton, and the thin filaments in muscle fibrils.It is found in essentially all eukaryotic cells, where it may be present at a concentration of over 100 μM; its mass is roughly 42 kDa, with a diameter of 4 to 7 nm.
Some isoforms have specialized functions in certain cell types (such as muscle), while other isoforms are ubiquitous. The structure and function of myosin is globally conserved across species, to the extent that rabbit muscle myosin II will bind to actin from an amoeba. [6] [7]
The Holland Lop is a breed of lop-eared rabbit that was recognized by the American Rabbit Breeders Association (ARBA) in 1979. The Holland Lop, with a maximum weight of 1.8 kg (4 lb) (as stipulated by ARBA), is one of the smallest lop-eared breeds.
Rabbits cannot vomit. This is because where the esophagus meets the stomach, rabbits have a massive muscular sphincter (with both smooth and striated muscles) along with a mucosal membrane flap that produces a watertight one-way seal. [15] They also lack the nerves necessary to vomit. [16]
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The psoas major (/ ˈ s oʊ. ə s / or / ˈ s oʊ. æ s /; from Ancient Greek: ψόᾱ, romanized: psóā, lit. 'muscles of the loins') is a long fusiform muscle located in the lateral lumbar region between the vertebral column and the brim of the lesser pelvis.