Bone

... except that they have no medullar cavity. flat bones (e.g. the skull and ribs) consist of two ... mainly occurs during formation of the flat bones of the skull ; the bone is formed from ... long bones and the extremities of irregular and flat bones. The diaphyses and the epiphyses of long ...

Leaf

... . For this purpose, a leaf is typically flat and thin, to expose the chloroplast containing ... or blunt truncate: ending abruptly with a flat end, that looks cut off. Leaf bases ... downward. truncate: ending abruptly with a flat end, that looks cut off. Hairiness ...

Chromatography

... In thin layer chromatography or TLC the stationary phase consists of a thin layer of adsorbent like silica gel , alumina , or cellulose on a flat carrier like a glass plate, a thick aluminum foil, or a plastic sheet. The process is similar to paper chromatography with the advantage of ...

Enzyme

... a reaction much less reversible, by coupling the reaction to one with a large release of energy. This is analogous to an object sliding freely on a flat surface; the object may be pulled in one direction by attaching it to a rope attached to a hanging weight. In order to lower the total net energy, ...

Marfan syndrome

... . These symptoms may in turn cause unusual pressure on the heart and lungs. Other symptons include; abnormal joint flexibility, high palates , flat feet, stooped shoulders, and dislocation of the optic lens. Nearsightedness or myopia is a common condition associated with Marfan syndrome. In ...

Neural plate

... The neural plate is thick and flat bundle of ectoderm which develops in the embryo into the nervous system . In the development sequence, the neural plate forms the neural tube ...

Plant

... a and b , and store food in the form of starch . They undergo closed mitosis without centrioles , and typically have mitochondria with flat cristae. The chloroplasts of green plants are surrounded by two membranes, suggesting they originated directly from endosymbiotic cyanobacteria . ...

Plant

... a and b , and store food in the form of starch . They undergo closed mitosis without centrioles , and typically have mitochondria with flat cristae. The chloroplasts of green plants are surrounded by two membranes, suggesting they originated directly from endosymbiotic cyanobacteria . ...

Synapse

... At a prototypical synapse, such as a dendritic spine , a mushroom-shaped bud projects from each of two cells and the caps of these buds press flat against one another. At this interface, the membranes of the two cells flank each other across a slender gap, the narrowness of which enables ...