Embryology of the Reproductive System

The process by which the germ layers are formed is known as [blank_start]gastrulation[blank_end]

Name these layers that are formed in the very early stages of embryonic development

Name the following structures

Mesoderm cells migrate through which structure to form the middle germ layer?

After the formation of the mesoderm, it splits into three sections. Arrange them from medial to lateral: [blank_start]Paraxial mesoderm[blank_end] [blank_start]Intermediate mesoderm[blank_end] [blank_start]Lateral plate of the mesoderm[blank_end]

The urogenital system develops from the [blank_start]intermediate mesoderm[blank_end].

Germ cells that are still to reach the gonads are known as [blank_start]Primordial[blank_end] Germ Cells (PGCs)

During weeks 4-6 of development, primordial germ cells migrate from the [blank_start]yolk sac[blank_end] to the [blank_start]intermediate mesoderm[blank_end] thus forming the [blank_start]primitive sex cords[blank_end]

In terms of genital duct development: The Wolffian ducts are also known as [blank_start]mesonephric ducts[blank_end] The Mullerian ducts are also known as [blank_start]paramesonephric ducts[blank_end]

[blank_start]Mesonephric[blank_end] ducts form the male reproductive system [blank_start]Paramesonephric[blank_end] ducts form the female reproductive system

What are the two main types of germ cells found in males? (Name alphabetically) [blank_start]Leydig[blank_end] cells [blank_start]Sertoli[blank_end] cells

Leydig Cells produce [blank_start]Testosterone[blank_end] Sertoli Cells produce [blank_start]Anti-Mullerian Hormone[blank_end]

Anti-Mullerian Hormone in males causes degradation of the [blank_start]Paramesonephric[blank_end] duct in males

The structure of the developing testes that connects the mesonephric duct to the sex cords is called the [blank_start]Rete[blank_end] Testis

Which hormone induces formation of epididymis, vas deferens, seminal vesicles? [blank_start]Testosterone[blank_end]

Which type of testosterone stimulates the development of the male external genitalia?

The testes originate at the posterior abdominal wall, around the area of which vertebral level?

Which of the three male accessory glands develops as part of the mesonephric ducts?

Which hormone triggers the development of the paramesonephric ducts in females? [blank_start]Oestrogen[blank_end]

Which three of the following structures are formed by the paramesonephric ducts?

Which germ layer is the external genitalia of the female formed from?

Abnormal position of external urethral orifice is known clinically as [blank_start]hypospadias[blank_end]