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# proj.
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# Ann.
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| GrayAnatomy |
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THE TERM human anatomy comprises a consideration of the various structures which make up the human organism. In a restricted sense it deals merely with the parts which form the fully developed individ |
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2022-03-30 |
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| GrayAnatomy |
41 |
(Os Palatinum; Palate Bone)The palatine bone is situated at the back part of the nasal cavity between the maxilla and the pterygoid process of the sphenoid (Fig. 167). It contributes to the walls of t |
9.75 KB |
2019-09-03 |
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| GrayAnatomy |
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The notochord (Fig. 19) consists of a rod of cells situated on the ventral aspect of the neural tube; it constitutes the foundation of the axial skeleton, since around it the segments of the vertebral |
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2022-03-25 |
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| GrayAnatomy |
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In front of the primitive streak two longitudinal ridges, caused by a folding up of the ectoderm, make their appearance, one on either side of the middle line (Fig. 16). These are named the neural fol |
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2022-03-25 |
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| GrayAnatomy |
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Toward the end of the second week transverse segmentation of the paraxial mesoderm begins, and it is converted into a series of well-defined, more or less cubical masses, the primitive segments (Figs. |
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2022-03-25 |
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| GrayAnatomy |
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The early segmentation of the human ovum has not yet been observed, but judging from what is known to occur in other mammals it may be regarded as certain that the process starts immediately after the |
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2022-03-25 |
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| GrayAnatomy |
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Fertilization consists in the union of the spermatozoön with the mature ovum (Fig. 8). Nothing is known regarding the fertilization of the human ovum, but the various stages of the process have been s |
2.71 KB |
2022-03-25 |
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| GrayAnatomy |
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THE TERM Embryology, in its widest sense, is applied to the various changes which take place during the growth of an animal from the egg to the adult condition: it is, however, usually restricted to t |
10.7 KB |
2022-04-02 |
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| GrayAnatomy |
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(Shoulder Blade)The scapula forms the posterior part of the shoulder girdle. It is a flat, triangular bone, with two surfaces, three borders, and three angles. 1
Surfaces.—The costal or ventral surfa |
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2019-09-03 |
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| GrayAnatomy |
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The ova are developed from the primitive germ cells which are imbedded in the substance of the ovaries. Each primitive germ cell gives rise, by repeated divisions, to a number of smaller cells termed |
7.71 KB |
2022-03-25 |
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