Microvascularization in adrenal gland of the common tree shrew (Tupaia glis)
2
Issued Date
2024
Copyright Date
1994
Resource Type
Language
eng
File Type
application/pdf
No. of Pages/File Size
ix, 48 leaves : ill. (some col.)
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Mahidol University
Bibliographic Citation
Thesis (M.Sc. (Anatomy))--Mahidol University, 1994
Suggested Citation
Sakporn Thongpila Microvascularization in adrenal gland of the common tree shrew (Tupaia glis). Thesis (M.Sc. (Anatomy))--Mahidol University, 1994. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/99992
Title
Microvascularization in adrenal gland of the common tree shrew (Tupaia glis)
Alternative Title(s)
การศึกษาโครงหลอดเลือดในต่อมหมวกไตของกระแต
Author(s)
Advisor(s)
Abstract
Fifteen adult common tree shrews of both sexes weighing between 110 and 180 g were divided into 3 groups for the study of the adrenal gland with light microscopy (LM), transmission electron microscopy (TEM), and with corrosion cast/SEM technique. It is found that the adrenal gland is supplied by branches of the inferior phrenic artery, of the abdominal aorta, and of the renal artery entering the superior, middle and inferior portions of the gland, respectively. Upon reaching the gland, they divide into cortical and medullary branches. The cortical branches give rise to the subcapsular capillary plexus. These plexuses partially enclose the clusters of cell in the zona glomerulosa being lobular-like microvascular network which further gives rise to capillaries running among the cellular cords of the zona fasciculata into the zona reticularis. It is noted that the capillaries in the zona glomerulosa and the zona reticularis are with more anastomoses than those in the zona fasciculata. The blood from the adrenal cortex is collected into peripheral radicles of the central vein in the area of cortico-medullary junction before joining each other to become the medullary collecting veins. The medullary branches of the adrenal arteries penetrate the adrenal cortex and give off few small branches to supply to zona fasciculata and zona reticularis before breaking up into larger capillaries of sinusoidal type in the adrenal medulla. These capillaries drain into the medullary collecting veins and proceed further into the very large central vein becoming the adrenal vein. The left and right adrenal veins join the left renal vein and the inferior vena cava, respectively. The ultrastructural study of the adrenal gland reveals that each cortical cells in the zona fasciculata contains numerous lipid droplets which are lower in the zona glomerulosa and lowest in the zona reticularis. Furthermore, it is found that the zona glomerulosa cells have round or spherical mitochondria with tubulo-vesicular cristae. In the zona fasciculata, the cells contain the lamellae tubular cristae in the spherical mitochondria. The cells in the zona reticularis have irregular and elongated mitochondria with vesicular cristae in the dark matrix. It is noteworthy that the capillaries in all parts of the gland are of fenestrated type.
Description
Anatomy (Mahidol University 1994)
Degree Name
Master of Science
Degree Level
Master's degree
Degree Department
Faculty of Science
Degree Discipline
Anatomy
Degree Grantor(s)
Mahidol University