Fig. 2From: Estimation of restraint stress in rats using salivary amylase activityRepresentative photographs of adrenal glands (a), thymus (b), and gastrointestinal tract (c) from control and stress rats (14 weeks of age). The adrenal glands were larger and the thymus was smaller in the stress rats than in the control rats. Intestinal bleeding was observed in the stress rats (arrowhead). Scale bars 1 cmBack to article page