In research institutions, biomedical engineers supervise laboratories and equipment, and participate in or direct research activities in collaboration with other researchers with such backgrounds as medicine, physiology, and nursing.n research institutions, biomedical engineers supervise laboratories and equipment, and participate in or direct research activities in collaboration with other researchers with such backgrounds as medicine, physiology, and nursing.
Melatonin is released in the dark, during sleep. The pineal gland has been implicated in a number of disorders including cancer, sexual dysfunction, hypertension, epilepsy, Pagetâs diseaseâ¦ The pineal gland calcifies with age and melatonin production correspondingly decreases.
1. A hormone secreted by the adrenal medulla that is released into the bloodstream in response to physical or mental stress, as from fear or injury. It initiates many bodily responses, including the stimulation of heart action and an increase in blood pressure, metabolic rate, and blood glucose concentration.pinephrine-a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action. Adrenalin, adrenaline, epinephrin.