Sperm preparation for fertilizing competence after epididymal maturation is called {{c1::capacitation}}.

What happens during the acrosomal reaction?

The acrosomal reaction releases acrosomal contents that participate in sperm passage through oocyte coverings. It is distinct from chromosome fusion or embryo cleavage.

Fertilization restores diploid complement

Combining the parental haploid genetic complements establishes the usual diploid zygote.

How does the cortical reaction help limit polyspermy?

Oocyte cortical-granule release modifies the zona environment and helps prevent additional sperm participation.

Early cleavage blastomere division

Early mitotic divisions produce blastomeres, increasing cell number without a corresponding increase in overall conceptus volume during the initial cleavage phase.

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Reproductive Foundations — Flashcards

Reproductive Foundations50 cardsBeginnerEnglish

A flashcard deck with 50 cards in reproductive foundations, made by Prognia.

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50 flashcards: 5 cloze, 15 classic-qa, 15 concept-explanation, 10 term-definition, 5 compare-contrast. Reproductive Foundations contains 50 flashcards and 50 quizzes covering seminiferous tubules, Sertoli and Leydig cells, epididymal maturation and ductal transport, accessory secretion, ovarian follicles, uterine layers and ampullary fertilization; spermatogonial mitosis, spermatocyte meiosis, spermiogenesis, sperm structure and unequal oogenic division; FSH, LH, GnRH, ovarian steroids and cycling endometrium; capacitation, the acrosomal and cortical reactions, the usual diploid zygote, cleavage, morula, blastocyst and implantation; early hCG luteal support, placental exchange and endocrine contribution, umbilical flow and mammary secretion/ejection; semen versus sperm, vascular erectile physiology, vestibular mucus, Lactobacillus acid production and the pubertal reproductive axis. Twenty-five covered objectives and atomic concept links support topic-specific feedback. This initial bank assesses qualitative introductory mechanisms. It excludes drug or fertility regimens, diagnostic thresholds, fixed cycle days, exact developmental timelines, clinical pregnancy testing, delivery protocols, contraception and STI-management recommendations. The sexual-health topic currently covers basic genital function and local physiology. Teaching cases do not establish clinical diagnostic or treatment competence.