Human Reproduction Flashcards

Flashcards based on Human Reproduction lecture notes.

What is sperm?

Male gamete.

What is an ovum?

Female gamete.

What is the importance of reproduction?

Ensuring the continuity and survival of every species.

What kind of process is reproduction?

Biological process.

What is gametogenesis?

Formation of male and female gametes.

What is fertilization?

Fusion of gametes.

What is cleavage?

Division of zygote.

What developmental stage follows cleavage?

Embryonic development.

What is implantation?

Attachment of embryo to the uterus.

What is parturition?

Delivery of baby.

What occurs during parturition?

Expelling the baby out of mother's womb.

Is fertilization external or internal in humans?

Internal.

Where is the male reproductive system located?

Pelvis region.

What are the components of the male reproductive system?

Testes, accessory ducts, glands, and external genitalia.

What is the testis considered as in the male reproductive system?

Primary sex organ.

What is the main sex hormone produced in males?

Testosterone.

What is the pouch outside the abdominal cavity that contains the testes?

Scrotum.

What is the function of the scrotum?

Maintaining a temperature lower than normal body temperature.

What process requires a lower temperature in the testes?

Spermatogenesis.

What are the 250 compartments within each testis called?

Testicular lobules.

What do testicular lobules contain?

Seminiferous tubules.

What two types of cells line the seminiferous tubules?

Male germ cells (spermatogonia) and Sertoli cells.

What do seminiferous tubules produce?

Produce sperms.

What cells are found in the interstitial spaces outside the seminiferous tubules?

Interstitial cells or Leydig cells.

What hormones do Leydig cells synthesize and secrete?

Androgens.

What is the primary androgen?

Testosterone.

What is the function of male accessory ducts?

Store and transport sperm.

Name the male accessory ducts.

Rete testis, vasa efferentia, epididymis, and vas deferens.

What the external opening of the urethra is called?

Urethral meatus.

What does the urethra transport?

Urine and sperm.

Name the male accessory glands.

Seminal vesicle, prostate gland, and bulbourethral glands.

What do the secretions of the accessory glands constitute?

Seminal plasma.

What is seminal plasma rich in?

Fructose, calcium, and certain enzymes.

What is the bulbourethral gland's function?

Lubrication of the penis

What is the male external genitalia?

Penis.

What does the erection of the penis facilitate?

Insemination.

What is the enlarged end of the penis called?

Glans penis.

What is the loose fold of skin covering the glans penis?

Foreskin.

Where is the male reproductive system located?

Pelvis region.

What are the male accessory glands?

Seminal vesicle, prostate gland, bulbourethral gland.

Where are sperms produced?

Seminiferous tubules.

What path do sperms travel from seminiferous tubules?

Rete testis, epididymis, vas deferens, and urethra.

What is the prostate gland's role?

Provides nutrition to sperm and neutralizes acidity of urine.

What do bulbourethral glands help with?

Facilitate lubrication in penile meatus during copulation.

Why are testis located in scrotal sacs?

Spermatogenesis.

What structures are found in mammalian testis?

Sertoli cells, seminiferous tubules, Leydig cell.

What are Leydig cells the secretory source of?

Androgens.

Identify the parts A-D of the seminiferous tubules.

A-Sertoli cell, B-Spermatogonia, C-Interstitial cell, D- Sperm.

What is the correct sequence of male accessory ducts starting from the testis?

Rete testis, vasa efferentia, epididymis, vas deferens.

What is the head of the epididymis called?

Caput epididymis.

What forms the ejaculatory duct?

Vas deferens along with a duct from seminal vesicle.