Flashcards: Human Reproductive and Embryonic Development — 12 cartões

Male reproductive system — role?

Produce and deliver sperm for fertilization.

Haploid cells — definition?

Cells with half the genetic material, sperm and ovum.

Fertilization — process?

Sperm and ovum fuse to form a zygote.

Capacitation — mechanism?

Biochemical sperm maturation enhancing motility.

Acrosome reaction — function?

Enzymes digest ovum outer layers for entry.

Cortical reaction — purpose?

Prevents additional sperm from entering the ovum.

Syngamy — meaning?

Fusion of male and female pronuclei.

Fertilization stages — sequence?

Ejaculation, sperm travel, penetration, fusion.

Embryonic development — stages?

Germinal, embryonic, fetal stages.

Germinal stage — includes?

Fertilization, cleavage, morula, blastocyst, implantation.

Embryonic stage — weeks?

Weeks 3–8, organogenesis occurs.

Placental development — timing?

Begins early, completes by weeks 14–16.