HLWL 1109 Chapter Notes - Chapter 6: Glans Penis, Pubic Hair, Erectile Tissue

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Document Summary

Chapter 6: male sexual anatomy and physiology: male sexual and reproductive system. Penis: male sexual organ that contains the urethra that carries urine and semen to the outside of the body. Has ability to engorge with blood and stiffen. Composed of three cylinders, each containing erectile tissue. Glans penis: made up of the corona, frenulum and the urethral opening. Foreskin: continuation of loose skin that covers the skin as a whole to allow it to grow during erection. Root: enters the body just below the pubic bone and is attached to internal pelvic muscles. Triggered by the parasympathetic division of the autonomic nervous system causing nerve fibers to swell the arteries of the penis. Scrotum: loose wrinkled pouch beneath the penis, covered with sparse pubic hair. Contains the testicles, each in a sac, separated by a thin layer of tissue. Testicles: egg shaped glands that rest in the scrotum. Testosterone production:production in interstitial or leydig cells.