BIO 12D Lecture Notes - Lecture 5: Abdominal Internal Oblique Muscle, Abdominal External Oblique Muscle, Spermatic Cord
15 May 2020
School
Department
Course
Professor
Document Summary
Skin covered sac, provides cooler environment needed for normal sperm development and maturation. Raphe: external midline seam: continues on inferior surface of the penis, and to anus. When testes exposed to elevated temps, muscles relaxes which unwrinkles skin of scrotum and allows testes to move further away from body which cools testes. Male gametes are sensitive to elevated temperatures: often exhibit abnormal or completely curtailed development. Gamete development occurs outside the body: scrotum: a skin-covered sac that houses, male gonads first portion of the duct system. Site of early sperm maturation and development, reside outside the. The opposite occurs if the testes are exposed to cold. Spermatic cord multilayered structure in which blood vessels and nerves to testis travel from within abdomen to scrotum. The blood vessels and nerves to the testis travel from within the abdomen to the scrotum in a multilayered structure called the spermatic cord. Contain: testicular artery, pampiniform plexus, autonomic nerves.
