Anatomical and histological changes in the spleen of post hatching indigenous chicken in Iraq

The structure of the indigenous chickens spleen during the post-hatching period was determined by gross and light microscopical examination by using Hematoxylin and eosin and Massons Trichrome staining techniques. At one day old chicks the spleen was rounded in shape, pink in color. At two weeks old chicks the spleen was triangular in shape. At the progress of the aged the color of spleen became red-brown. In all ages the spleen consisted of white pulp and red pulp which were fused together. The spleen was encapsulated by thin connective tissue capsule contain few smooth muscles, the trabiculi were rare and thin. The red pulp consisted of venous sinuses surrounded by lymphatic cords. The white pulp consisted of peri-artery lymphoid sheath, peri-venous lymphoid sheath, peri ellipsoid lymphoid sheath, and Lymphatic follicles. The appearance of these elements was age dependant. At the first week of age the peri-artery lymphoid sheath and peri-venous lymphoid sheath were developed. At the third week, the peri ellipsoid lymphoid sheath, Lymphatic follicles were noticed and the plasma cells were scattered in the white pulp in addition to the lymphocytes. At one month of age, the germinal center appeared in some lymphatic follicle. The present study revealed that the spleen was well developed lymphatic organ at the age of three weeks.

Mass of the Vermiform Appendix in Bangladeshi People

This study was done to measure the weight of vermiform appendix in Bangladeshi people to augment the data regarding variational anatomy in our setting. A total 100 vermiform appendix (male - 60, female - 40) were excised from cadaver of different age and sex during routine post mortem examination in the autopsy laboratory of Forensic Medicine Department of Mymensingh Medical College. This cross-sectional study was done by convenient sampling technique. The weight depended on length and thickness. The weight decreases gradually with advancing age probably decreasing number of lymphatic follicle and that replaced by connective tissue. Lymphatic follicles were examined and estimated by microscope. For convenience of differentiating the weight of vermiform appendix in relation to age and sex, specimens were categorized in four age groups (up to 20 year, 21 - 35 years, 36 - 55 years, 56 - 70 years). Mean weight of vermiform appendix was maximum in group - B (4.07 ± SE 0.82 gm) and minimum in group D (3.01 ± SE 0.74 gm). The weight range was from 2 gm (group - D) to 5.50 gm (group - B). Diameter of lymphatic follicle was largest 43.08 micrometer in group-A, and least diameter was 3.08 micrometer in group - D. The range of number of lymphatic follicle was 1 to 6. Mean number of lymphatic follicle in male was 4.48 & in female were 5.40. Key Words: Human Vermiform, Appendix, Weight, Lymphatic, Follicle  doi: 10.3329/jbsp.v3i0.1787 J Bangladesh Soc Physiol.2008 Dec;(3):8-12.