22: The Reproductive System (Male)
Anatomy and Physiology of the Male Reproductive System
- Describe the structure of the organs of the male reproductive system
- Describe the structure of the sperm cell
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- 22.1: Scrotum
- This page explains the male reproductive system, detailing its components such as the testes, epididymis, and penis, as well as ducts and glands involved in semen production and transportation. It highlights the role of the ductus deferens in sperm release and the contribution of seminal vesicles and the prostate gland to semen. Additionally, it emphasizes the importance of the scrotum in regulating temperature for optimal sperm production, facilitated by the dartos muscle.
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- 22.2: Testes
- This page details the anatomy and function of the testes, the male gonads responsible for sperm and testosterone production. Measuring about 4 to 5 cm, the testes are housed in the scrotum and protected by two connective tissue layers. Sperm production occurs in the seminiferous tubules, with maturation taking place in the epididymis prior to ejaculation via the ductus deferens.
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- 22.3: Structure of Formed Sperm
- This page discusses the differences between sperm and female gametes, highlighting the significant production rate of sperm (100 to 300 million daily) compared to one oocyte monthly. It details the sperm's structure—head, mid-piece, and tail—and their maturation process in the epididymis. During ejaculation, sperm travel through the ductus deferens and combine with fluids from various glands to form semen, which is essential for fertilization.
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- 22.4: Penis
- This page provides an overview of the male reproductive organ, the penis, highlighting its functions in sexual intercourse and urination. It describes its anatomical structure, including three erectile tissue chambers, the role of the glans penis, and the presence of the foreskin, which can be removed through circumcision. Additionally, it notes the sensitivity of these areas due to their numerous nerve endings, which contribute to sexual response.
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- 22.5: Exercises
- This page provides a series of labeling exercises on male reproductive anatomy, including diagrams for identifying structures like the deep artery, urethra, spermatic cord, and testes. It also features histology sections for labeling sperm parts and tissue layers in related organs. The overall goal is to enhance understanding of anatomical structures and their functions within the male reproductive and urinary systems.
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- 22.6: MODELS- Male Hemi-Pelvis and Torso
- This page provides a detailed overview of the male reproductive system's anatomy and histology, covering structures like the scrotum, testes, ejaculatory duct, urethra, and penis, along with components such as the dartos muscle and seminal vesicles. It includes histological descriptions of erectile tissue, testicular elements, sperm structure, and the prostate's epithelium, while also mentioning related structures like the rectum and bladder.