BIOL-242 Lecture Notes - Lecture 60: Ischial Tuberosity, Pubic Symphysis, Ischiocavernosus Muscle
16 Jun 2020
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Chapter 27 part 2 | male reproductive anatomy. Rare; most common cancer in men 15-35. Sign painless, solid mass in testis. 90% cured by surgical removal of testis and often radiation or chemotherapy. Diamond-shaped region between pubic symphysis, coccyx, and ischial tuberosities. Suspends scrotum; contains root of penis and anus. Root and shaft that ends in glans penis. Prepuce , or foreskin cuff of loose skin covering glans. Proximal ends of corpora cavernosa surrounded by ischiocavernosus muscle; anchors penis to pubic arch. Reduced risk for other reproductive system infections. Spongy urethra and three cylindrical bodies of erectile tissue (spongy network of connective tissue and smooth muscle with vascular spaces) Corpus spongiosum - surrounds urethra and expands to form glans and bulb. Erection - erectile tissue fills with blood, causing penis to enlarge and become rigid. Ducts carry sperm from testes to body exterior. Head - contains efferent ductules; superior aspect of testis; body and tail on posterolateral area of testis.
