The Role of Nigella sativa and Its Active Constituents in Learning and Memory

Figure 1

(a) Each Nigella sativa (NS) seed shows characteristic corrugations of its surface. (b) NS essential oil resides in vesicles just beneath the black seed coat (as shown by white arrow). (c) NS oil is mainly composed of monoterpenes (having 10 carbon atoms) having phenolic groups that provide the basis for its antioxidant activity.

(a)

(b)

(c)