For Males, an Engineering Marvel that Originates in the Brain
Actin, bioactivity, brain, calcium ions, corpus cavernosum, ejaculation, erectile dysfunction, erectile tissue, erection, guanylate cyclase, human physiology, humans, Irreducible Complexity, irreducibly complex systems, Life Sciences, Medicine, motor neurons, muscles, myosin, Neuroscience & Mind, nitric oxide, nitric oxide signaling pathway, pelvic floor, penis, physiological processes, prostate gland, reproduction, seminal fluid, seminal vesicles, smooth muscle cells, sperm cells, vaginal cavity, vas deferens
The male erection and ejaculatory reflex require multiple physiological processes to work together in an incredible coordinated manner. Source