MORPHOLOGICAL CHARACTERISTICS OF NORMAL CARDIAC MYOCYTE GROWTH / 解剖学报

The cell volume, length, cross-section area, surface area, width and thickness of isolated cardiac myocytes were measured by using of a new computer system of coulter channelyzer and avias eye imaging analysis system. The rats, 3 weeks to 24 weeks in age after birth, were performed thoracic operation the morphological growth characteristics of isolated cardiac myocytes were observed.1. Physiological growth of normal cardiac myocytes was due to increase in cell volume, i. e. the cell length and cross-section area were enlarged. In the mean time, the changes in cross-section shape of myocytes happened when the myocytes growing.2. The major axis of cross-section area of myocytes was enlarged but the minor cross-section diameter did not show any more changes. So that, the growth lead to the cardiac myocytes be flattened in shape. The flattened growing pattern was one of the characteristics of normal growing myocytes. It might be very significant for the clinicians to eliminate the factors which would stimulate myocytes to be enlarged in cell width, and to treat and to prevent the heart disease.

THE ARCHITECTONICS OF BLOOD VESSELS IN THE SKIN AND SUpERFICIAL AND DEEP FASCIA OF PLANTA UNDER SCANNING ELECTRON MICROSCOPE / 解剖学报

I. Under scanning electron microscope, the vascular network of the cutaneous, subcutaneous, and deep fascia in planta can be divided into five layers according totheir vascular morphological characteristics. They are as following: the papillary layer, the subpapillary layer, the deep dermal layer, the subcutaneous layer, and the deep fascia layer. 2. The papillary layer is the most superficial one, it is easy to recognize that there are five types of capillary network: the single loop, the multiple loop, the tower-like type, the finger-like type, and irregular type. 3. The network in the subpapillary layer is polygon-like, parallel to the surface of skin. 4. In the deep dermal layer, there are many vascular balls in the vascular trunks. 5. The subcutaneous layer: The vascular networks are limited by fat lobules. 6. The vascular-trunks run across each other and anastomose each other in deep fascia layer.

SCANNING ELECTRON MICROSCOPE STUDIES OF THE MICROCIRCULATION IN THE NAIL BED OF THE TOE / 解剖学报

The vascular morphological character of the microcirculation in the nail bed of the toe have been studied with the scanning electron microscope. Three types of vascular network were identified: 1) The blood vessels at the proximal two fifth of the nail bed were parallelly arranged. 2) At the middle two fifths of the nail bed, the blood vessels interwoved with each other and formed the polygonal vascular networks. 3) At the distal one fifth of the nail bed there were only a few vascular loops running in a slanting position. These loops were connected with the vascular network from the papillary layer of the skin of the toe.