The outer layer of the cerebrum in the brain, responsible for complex functions such as perception, thought, and decision-making. The cerebral cortex is crucial for processing sensory information and executing voluntary movements.
The outer layer of an organ or body part, such as the kidney or adrenal gland. The renal cortex is the part of the kidney where filtration of blood occurs.
The outer layer of a plant stem or root, lying below the epidermis but outside the vascular tissue. In plants, the cortex helps in the storage of nutrients and the transport of water and minerals.
The principal structural layer of a hair or wool fiber lying between the cuticle and the medulla. Chemical dyes penetrate the hair cortex to change its color.