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Sperm-Oocyte Penetrations -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
 

Sperm-Ovum Interaction -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
 

Sperm-ovum interactions -- See Also the narrower term Acrosome reaction


  1
Sperm-ovum interactions.   4
Sperm-ovum interactions -- Atlases. : Atlas of fine structure of human sperm penetration, eggs, and embryos cultured in vitro / A. Henry Sathananthan, Alan O. Trounson, and Carl Wood  1985 1
Sperm-Ovum Interactions -- physiology : Manual of embryo selection in human assisted reproduction / edited by Catherine Racowsky, Jacques Cohen, Nick Macklon  2023 1
 

Sperm-Ovum Penetration -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
 

Sperm-Ovum Penetrations -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
  Sperm penetration -- 2 Related Subjects   2
 

Sperm Penetrations -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
 

Sperm Retrieval -- See Also Fertility Preservation


A method of providing future reproductive opportunities before a medical treatment with known risk of loss of fertility. Typically reproductive organs or tissues (e.g., sperm, egg, embryos and ovarian or testicular tissues) are cryopreserved for future use before the medical treatment (e.g., chemotherapy, radiation) begins
  1
Sperm whale.   9
 

Sperm Whale, Dwarf -- See Whales


Large marine mammals of the order CETACEA. In the past, they were commercially valued for whale oil, for their flesh as human food and in ANIMAL FEED and FERTILIZERS, and for baleen. Today, there is a moratorium on most commercial whaling, as all species are either listed as endangered or threatened
  1
Sperm whale hunting. : Hunters Of The South Seas: The Whale Hunters Of Lamalera - Ep 2 Of 3 / Director: Balment, Jamie  2015 1
Sperm whale -- New Zealand : Keepers of the forest. Paraoa, the big sperm whale / directed by Benoît Ségur ; produced by Manuel Catteau  2000 1
 

Sperm Whale, Pygmy -- See Whales


Large marine mammals of the order CETACEA. In the past, they were commercially valued for whale oil, for their flesh as human food and in ANIMAL FEED and FERTILIZERS, and for baleen. Today, there is a moratorium on most commercial whaling, as all species are either listed as endangered or threatened
  1
 

Sperm Whales, Dwarf -- See Whales


Large marine mammals of the order CETACEA. In the past, they were commercially valued for whale oil, for their flesh as human food and in ANIMAL FEED and FERTILIZERS, and for baleen. Today, there is a moratorium on most commercial whaling, as all species are either listed as endangered or threatened
  1
 

Sperm Whales, Pygmy -- See Whales


Large marine mammals of the order CETACEA. In the past, they were commercially valued for whale oil, for their flesh as human food and in ANIMAL FEED and FERTILIZERS, and for baleen. Today, there is a moratorium on most commercial whaling, as all species are either listed as endangered or threatened
  1
 

Sperm, X-Bearing -- See Spermatozoa


Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility
  1
 

Sperm, X-Chromosome-Bearing -- See Spermatozoa


Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility
  1
 

Sperm, Y-Bearing -- See Spermatozoa


Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility
  1
 

Sperm, Y-Chromosome-Bearing -- See Spermatozoa


Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility
  1
 

Sperm-Zona Pellucida Penetration -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
 

Sperm-Zona Pellucida Penetrations -- See Sperm-Ovum Interactions


Interactive processes between the oocyte (OVUM) and the sperm (SPERMATOZOA) including sperm adhesion, ACROSOME REACTION, sperm penetration of the ZONA PELLUCIDA, and events leading to FERTILIZATION
  1
Sperma.   2
Spermaceti. : How We Got To Now: Light - Ep 4 Of 6 / Director: Olding, Paul  2014 1
 

Spermaphytes -- See Phanerogams


  1
 

Spermatocytogenesis -- See Spermatogenesis


The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA
  1
Spermatogenesis.   13
Spermatogenesis -- Genetic aspects.   3
Spermatogenesis -- Genetic aspects -- Congresses : The genetics of male infertility / edited by Douglas T. Carrell  2007 1
Spermatogenesis -- Genetic aspects -- Periodicals : Spermatogenesis (Online)    1
Spermatogenesis -- genetics : Proteomics of spermatogenesis / G.S. Gupta  2005 1
 

Spermatogenesis in animals -- See Also the narrower term Spermiogenesis in animals


  1
Spermatogenesis in animals.   4
Spermatogenesis -- Laboratory manuals   2
Spermatogenesis -- physiology : Molecular mechanisms in spermatogenesis / edited by C. Yan Cheng  2008 1
Spermatogensis : Flagellar mechanics of spermatozoa : its implication in sperm guidance    1
Spermatogonia : Male germline stem cells : developmental and regenerative potential / Kyle E. Orwig, Brian P. Hermann, editors  2011 1
 

Spermatogonial progenitor cells -- See Adult stem cells


  1
 

Spermatophyta -- See Phanerogams


  1
 

Spermatophytes -- See Phanerogams


  1
  Spermatozoa -- 3 Related Subjects   3
Spermatozoa   25
Spermatozoa -- abnormalities : Atlas of human sperm morphology evaluation / edited by Thinus F. Kruger and Daniel R. Franken  2004 1
Spermatozoa -- Analysis.   3
Spermatozoa -- Atlases.   3
Spermatozoa Birds : Sperm competition in birds : evolutionary causes and consequences / T. R. Birkhead, A. P. Moller ; illustrated by David Quinn  1992 1
Spermatozoa -- Collection and preservation   2
Spermatozoa -- Congresses : XIIIth International Symposium on Spermatology / Lars Björndahl, John Flanagan, Rebecka Holmberg, Ulrik Kvist, editors  2021 1
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