The evidence of carotid body in the carotid rete of the shiba goat.
The carotid body was found in/on the cavernous sinus of the carotid rete of the Japanese miniature Shiba goat by light and electron microscopies. The carotid body-like aggregated cell group consisted of two types of cells arranged in the lobule. The first type contained membrane-bound granular vesicles; these cells resembled to the type-I cells in the carotid body. The second type contained no cytoplasmic vesicles, and were located in the periphery, investing the type-I cells. These features appear to be consistent with those of the type-II cells in the carotid body. The nerve ending showed two peculiar features in the intercellular space of type-I cells. The clear vesicle-containing nerve ending showed a structural feature indicative of efferent synapsis. The small granular vesicle-containing nerve ending has been described as a baroreceptor-like ending by VERNA (1979). All of these features are typical characteristics of the carotid body.
Laboratory of Anatomy and Physiology, College of Agriculture and Veterinary Medicine, Nihon University, Japan.
W
W
Rerkamnuaychoke
K
K
Ohsawa
M
M
Kurohmaru
Y
Y
Hayashi
T
T
Nishida
D000818:Animals; D002344:Carotid Body / Q000033:anatomy & histology* / Q000648:ultrastructure; D006041:Goats / Q000033:anatomy & histology*; D008854:Microscopy, Electron / Q000662:veterinary; D008855:Microscopy, Electron, Scanning / Q000662:veterinary