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27 Cards in this Set
- Front
- Back
Germinal Epithelium
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wall of seminiferous tubule with layers of developing sperm
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Interstitual Cells (Leydig cells)
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testosterone-producing cells found outside seminiferous tubules
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Lumen of the seminiferous tubules
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central cavity of the tubules into which mature sperm are released
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Primary spermatocytes
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diploid cells that undergo the first meiotic division to give rise to secondary
spermatocytes |
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Secondary spermatocytes
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haploid cells that undergo the second meiotic division to give rise to
spermatids, short-lived and seldom seen in slides |
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Seminiferous tubules
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tightly coiled structures in which the sperm develop
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Sertoli cells
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"nurse" cells that nourish developing sperm and anchor spermatids during maturation
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Spermatids
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haploid cells that undergo spermiogenesis to become mature sperm
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Spermatogonia
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diploid cells that undergo mitotic division to give rise to primary spermatocytes
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Testes
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male reproductive organ that is the site of spermatogenesis
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Tunica albuginea
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connective tissue layer surrounding the seminiferous tubules
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Antral follicle
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developing follicle with an internal cavity (antrum), but which has not yet developed the cumulus oophorus of a Graafian follicle
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Antrum
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the fluid-filled space found in antral or Graafian follicles; also called the follicular cavity
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Corona radiata
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cumulus cells surrounding the free oocyte after ovulation
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Corpus luteum
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an endocrine organ formed from the remaining follicle cells after ovulation occurs,
secretes large amounts of progesterone and small amounts of estrogen |
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Cumulus oophorus
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small mass of cells separating the oocyte from the antrum in a Graafian follicle
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Follicle
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ovarian structure in which oocyte maturation takes place
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Graafian follicle
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mature follicle containing a cumulus oophorus; in this structure the primary oocyte
completes the first meiotic division, giving a secondary oocyte and the first polar body, and begins the second meiotic division (right before ovulation) |
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Ovary
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female reproductive organ that is the site of oogenesis
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Primary follicle
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developing follicle containing a primary oocyte surrounded by a single layer of cuboidal
follicle cells |
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Primary oocyte
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the form of the developing oocyte from about 3 months of human fetal development
until meiosis resumes shortly before ovulation |
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Primordial follicle
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non-growing follicle containing a primary oocyte stalled in prophase of the first meiotic division and surrounded by a single layer of flattened follicle cells
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Secondary follicle
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developing follicle containing a primary oocyte surrounded by more than one layer of
follicle cells, but no antrum |
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Secondary oocyte
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developing oocyte not usually seen in slides because it is formed just before ovulation,
in humans it is arrested in metaphase of the second meiotic division |
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Theca externa
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the muscular outer layer of connective tissue (smooth muscle and collagen) surrounding an Antral or Graafian follicle
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Theca interna
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the vascularized and glandular inner layer of connective tissue surrounding an Antral or
Graafian follicle, cells in this layer can produce testosterone. |
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Zona pellucida
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acellular material secreted between the oocyte and follicle cells.
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