Muscle Tear Definition. Pulled muscles, tearing of the muscle fiber and muscle strains are common injuries, usually occurring during a sporting activity. These three names designate one and the same clinical condition, but reflect different degrees of straining muscles.uscle Tear Definition. Pulled muscles, tearing of the muscle fiber and muscle strains are common injuries, usually occurring during a sporting activity. These three names designate one and the same clinical condition, but reflect different degrees of straining muscles.
Noun. 1. egg yolk-the yellow spherical part of an egg that is surrounded by the albumen. yolk. fixings, ingredient-food that is a component of a mixture in cooking; the recipe lists all the fixings for a salad. eggs, egg-oval reproductive body of a fowl (especially a hen) used as food.
An egg is the organic vessel containing the zygote in which an animal embryo develops until it can survive on its own, at which point the animal hatches. An egg results from fertilization of an ovum.Most arthropods, vertebrates, and mollusks lay eggs, although some do not, such as scorpions and most mammals. Reptile eggs, bird eggs, and monotreme eggs are laid out of water, and are surrounded by a protective shell, either flexible or inflexible.esolecithal eggs have comparatively more yolk than the microlecithal eggs. The yolk is concentrated in one part of the egg (the vegetal pole), with the cell nucleus and most of the cytoplasm in the other (the animal pole). The cell cleavage is uneven, and mainly concentrated in the cytoplasma-rich animal pole.