Horny Growth on Arm

Horny Growth Arising from Neglected Sebaceous Cyst

One Imam Wd. Noorahamad, aged about 45 years, a private servant, was admitted into the Civil Hospital, Belgaum, on the 17th February 1902. Previous History?The patient stated thaf. since birth he had a small painless tumour of the size of a gram at the root of the neck on the right side. This gradually grew larger and larger till it was finally the size of a small cocoanut. About two years ago ...

Formation of Horny Cells

Epithelial cells changing from the granular stage of differentiation to the horny stage are more numerous, and reveal sequential events of transformation in finer detail in the rumen epithelium than in other keratinizing epithelia thus far studied in the electron microscope. Studies of such cells indicate that transformation is initiated by the release of hydrolytic enzymes, as evidenced by the...

A Case of Horny Papilloma

A Horny Dilemma: Sex and Friendship Between Students and Professors

Seasonal dimorphism in the horny bills of sparrows

Bill size is often viewed as a species-specific adaptation for feeding, but it sometimes varies between sexes, suggesting that sexual selection or intersexual competition may also be important. Hypotheses to explain sexual dimorphism in avian bill size include divergence in feeding niche or thermoregulatory demands, intrasexual selection based on increased competition among males, or female pre...