- Craig Vierra and colleagues found that the aciniform gland in the Black Widow manufactures and extrudes a previously unidentified protein that is a component of multiple types of silk.
- Although it is widely believed that the aciniform glands are one such silk factory, there has been no hard evidence linking aciniform-derived proteins and silk - until now.
- Inflammation of the thyroid gland.
- Inflammation of the prostate gland.
- Hormone secretion is controlled by the pituitary gland.