Jonathan McLelland

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The enteric nerve plexuses of the domestic fowl (Gallus domesticus) were investigated in sections and stretch preparations by means of the cholinesterase and glyoxylic acid fluorescence histochemical techniques. Cholinesterase-positive and varicose and non-varicose fluorescent nerve fibers were distributed at all levels of the gut in myenteric, submucosal,(More)
The presence of granular endocrine cells was investigated in the lungs of 4-6 weeks old Ringed Turtle Doves (Streptopelia risoria) by scanning and transmission electron microscopy. No granular cells were observed with the scanning electron microscope. In alternate semithin and ultrathin sections granular cells were found either singly or in small groups in(More)
Forty-six patients with GH-secreting pituitary tumours were treated with conventional external pituitary irradiation through two opposed fields to a total dose of 3750 cGy over 15 fractions. Thirty-patients received external radiotherapy as primary treatment and 16 received radiotherapy combined with pituitary surgery. The mean (+/- SD) serum GH in the(More)
An electron microscopic investigation of the extrapulmonary respiratory tract of embryos and chick of the domestic fowl (Gallus domesticus) has demonstrated for the first time in birds the presence here of a small number of epithelial cells characterised by an aminecontaining type of granule. These granular cells were scattered singly throughout the(More)
The innervation of the epithelium of the avian trachea was investigated in the domestic fowl (Gallus domesticus) with cholinesterase and fluorescence techniques and electron microscopy. In the subepithelial tissues there were many nerves associated with acetylcholinesterase but only a very few containing catecholamines. The nerves were arranged in two(More)
The development of the epithelium and its innervation was investigated with the electron microscope in the larynx and trachea of embryo domestic fowls between the 10th and 21st days of incubation. From days 10 to 16 the airways were lined by undifferentiated cells which on day 15 or 16 became arranged in two distinct layers. Differentiation of the(More)