Male Reproductive System Anatomy
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What is urology?
The study of surgical and medical diseases of the male and female urinary tract system and the male reproductive organs
What is andrology?
Medical study of the male reproductive system
What is endocrinology?
Study of biology and medicine dealing with the endocrine system, its diseases, and its secretions
What is the male gamete called?
spermatozoon (singular) spermatozoa (plural)
What is the reproductive system closely related to and why?
The urinary system. They develop their tubules and ducts so that they are interdependent on each other
What is the common passages way of the urinary system and the reproductive tract in males?
Urethra
What are the four main parts of the male reproductive system?
Two testes/testicles, scrotum, accessory organs (which include ducts and glands), and the penis
What produces spermatozoa/sperm?
Testes
What produces testosterone?
Testes
What is testosterone?
Male sex hormone
What is the function of the scrotum?
Provides a favorable environment for production and maturation of spermatozoa
What is a benefit of sperm cells that egg cells don’t have?
They’re a type of cell that is easy to be produced, so they can be produced quickly in mass quantities
What plays a role in ease of sperm cell production?
Temperature
What is the ultimate goal of the spermatozoa?
Reaching the ovum of the female in a condition that allows fertilization of the ovum
What structures help the spermatozoa reach the ovum?
Epididymis, ductus deferens, urethra, penis, and accessory sex glands (ampullary glands, vesicular glands, prostate, and bulbourethral glands)
What is the sigmoid flexure?
A bend in the penis that allows the penis to fold when the retractor penis muscle contracts and straighten during erection
What animal has a corkscrew penis?
Pig/boar
Where does spermatogenesis occur?
The testes
What varies between species about the testes?
Shape, size, and location
What does the spermatic cord contain?
blood vessels, nerves, lymphatics, and ductus deferens
What does the spermatic cord do?
Suspends each individual testis in the scrotum
What are the spermatic cord and testicle invested/covered by?
The peritoneum, which is a serosal sac (contains serous fluid) also called the vaginal tunic/sheath
What does the investment (covering) of the spermatic cord imply?
Fetal testis developed in the abdomen and reached the scrotal position by migrating through the serosa-lined abdominal cavity, and carried its serosal coverings with it
Each testis consists of a coiled mass of what surrounded by what?
Seminiferous tubules surrounded by a heavy fibrous capsule called the tunica albuginea