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Biological process
Sperm guidance is the process by which sperm cells (spermatozoa) are directed to the oocyte (egg) for the aim of fertilization. In the case of marine invertebrates
Sperm_guidance
Guidance of sperm
Sperm chemotaxis is a form of sperm guidance, in which sperm cells (spermatozoa) follow a concentration gradient of a chemoattractant secreted from the
Sperm_chemotaxis
Male reproductive cell
Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger,
Sperm
Sperm thermotaxis is a form of sperm guidance, in which sperm cells (spermatozoa) actively change their swimming direction according to a temperature
Sperm_thermotaxis
Topics referred to by the same term
competition Sperm donation Sperm granuloma Sperm guidance Sperm heteromorphism Sperm motility Sperm precedence Sperm sorting Sperm theft Sperm washing Catch
Sperm_(disambiguation)
Israeli biochemist
biochemist who specializes in the navigation mechanisms of bacterial and sperm cells. He is a professor emeritus at the Weizmann Institute of Science,
Michael_Eisenbach
Method of an organism modifying its body based on temperature
suggests that mammalian sperm employ thermotaxis to move to an appropriate location in the female's oviduct (see Sperm guidance). Other experiments have
Thermotaxis
Experimental male contraceptive injection
Reversible inhibition of sperm under guidance (RISUG), formerly referred to as the synthetic polymer styrene maleic anhydride (SMA), is the development
Reversible inhibition of sperm under guidance
Reversible_inhibition_of_sperm_under_guidance
Human male external reproductive organ
that maximise reproductive success and minimise sperm competition. Sperm competition is where the sperm of two males simultaneously occupy the reproductive
Human_penis
tuberculate, low pH can damage the eggs chemical influence on sperm mobility and velocity. Sperm guidance Acrosome reaction Oocyte Wessel, GM; Brooks, JM; Green
Egg_jelly
California Cryobank is a sperm bank in California, United States, one of the two biggest in the world. There are offices in Palo Alto, Los Angeles, Cambridge
California_Cryobank
Assisted reproductive technology procedure
fertilisation (IVF) is a process of fertilisation in which an egg is combined with sperm in vitro ("in glass"). The process involves monitoring and stimulating the
In_vitro_fertilisation
2015 Persian comedy film
According to statistics from Iran's Ministry of Culture and Islamic Guidance, Sperm Whale was one of eleven films released during the period March 2014
Sperm_Whale_(film)
Biohybrid microrobots
Robotic sperm (also called spermbots) are biohybrid microrobots consisting of sperm cells and artificial microstructures. Currently there are two types
Robotic_sperm
Pregnancy prevention methods used by men
control, are methods of preventing pregnancy by interrupting the function of sperm. The most commonly used forms of male contraception are condoms, vasectomy
Male_contraceptive
Form of male contraception that blocks sperm transport in the vas deferens
sterility at the same rate as a vasectomy. Reversible inhibition of sperm under guidance (RISUG) is a non-toxic polymer gel-based contraceptive that is injected
Vas-occlusive_contraception
Parvorder of cetaceans
porpoises, and all other whales with teeth, such as beaked whales and the sperm whales. 73 species of toothed whales are described. They are one of two
Toothed_whale
Human chromosomal condition
since approximately only 50% of males with Klinefelter syndrome can produce sperm. Some degree of language learning or reading impairment may be present,
Klinefelter_syndrome
Degenerative brain disease caused by prions
of any donor sperm, motivated by a risk of variant Creutzfeldt–Jakob disease, inhibiting the once popular import of Scandinavian sperm. Despite this
Variant Creutzfeldt–Jakob disease
Variant_Creutzfeldt–Jakob_disease
Artificial selection of the sex of offspring
fertilization by male sperm. Sperm sorting is an advanced technique that sorts sperm "in vitro" by flow cytometry. This shines a laser at the sperm to distinguish
Sex_selection
Tubular structure to conduct male gametes of plants to the female gametes
protrusion from the pollen grain, which carries the sperm cells within its cytoplasm. The sperm cells are the male gametes that will join with the egg
Pollen_tube
Complex fertilization mechanism of flowering plants
sperm fertilizes the egg cell and the other sperm fuses with the two polar nuclei of the large central cell of the megagametophyte. The haploid sperm
Double_fertilization
Monty Python sketch
Vocational Guidance Counsellor is a Monty Python sketch first broadcast on 21 December 1969 in Episode 10. The sketch is credited with creating the popular
Vocational Guidance Counsellor
Vocational_Guidance_Counsellor
Procedure to preserve a woman's eggs (oocytes)
intracytoplasmic sperm injection (ICSI) is performed by an embryologist whereby sperm is injected directly into the egg with a needle rather than allowing sperm to
Oocyte_cryopreservation
Genetic profiling of embryos prior to implantation
fertilization may instead be referred to as methods of oocyte selection or sperm selection, although the methods and aims partly overlap with PGD. In 1968
Preimplantation genetic diagnosis
Preimplantation_genetic_diagnosis
American physician (born 1960)
In men with no sperm count (azoospermia), it soon became clear that sperm could be found in the testes and used with ICSI, but sperm production was characteristically
Paul_J._Turek
with the balance, 380 whales, dying. In September 2022, fourteen stranded sperm whales at King Island, most of which appeared to be young males according
Cetacean strandings in Tasmania
Cetacean_strandings_in_Tasmania
Creator boot camp founded by Kai Cenat
Professor (Announced, Did Not Attend) (2026) Withdrew due to a scheduling conflict with a prior wildlife conservation commitment involving sperm whales.
Streamer_University
Species of amphibian
neotenic fire salamanders. In captivity, females may retain sperm long-term and use the stored sperm later to produce another clutch. This behavior has not
Fire_salamander
excluded from receiving sperm donation." Therefore Japanese couples have to choose between "importing sperm from international sperm banks, which is expensive
Family_law_in_Japan
Species of harvester ant
the sperm, resulting in clonal reproduction for the males. This is required because the queen can only produce (female) worker ants using sperm from
Messor_ibericus
Congenital condition where an individual with a 46,XX karyotype is male
all reported cases, individuals have been sterile, with azoospermia (no sperm in the ejaculate). Due to its often-subtle presentation, many do not get
XX_male_syndrome
Caregiver of offspring in their own species
the raising of a child or who has provided the biological material, the sperm, which results in the birth of the child. Grandparents are the parents of
Parent
2025 American television series
failure due to genetically inherited alport syndrome. Her father was a sperm donor, and Stephens discovers that she has 42 half-siblings, many of whom
Watson_(TV_series)
Most common species of mice
rates, increasing female fitness. Sperm competition that arises from polygamy favors males with faster, more motile sperm in higher numbers, increasing male
House_mouse
Good manufacturing practice enforced by US government
tissue used in reproductive medicine (assisted reproductive technology): sperm, oocytes, and embryos. These rules only cover tissue which has not been
Good_tissue_practice
New Zealand ecotourism company
Island of New Zealand. The company offers marine wildlife tours focussing on sperm whales and other cetaceans, using vessels operating from the marina at South
Whale_Watch_Kaikōura
Japanese manga series and its adaptations
preserve his memory, Hahari had herself artificially inseminated with his sperm at the age of 13, which led to the birth of Hakari. Rentaro meets his spirit
The 100 Girlfriends Who Really, Really, Really, Really, Really Love You
The_100_Girlfriends_Who_Really,_Really,_Really,_Really,_Really_Love_You
British television medical drama
Attempts to have a third child are scuppered after he finds out he has a low sperm count and furthermore, is suspected of having an affair with a fellow doctor
Bodies_(2004_TV_series)
Health effects of an older father at conception
age is not seen as a major public health concern. The genetic quality of sperm, as well as its volume and motility, may decrease with age, leading the
Paternal_age_effect
In medicine, a mistake that should never happen
the quality of patient care. Artificial insemination with the wrong donor sperm or donor egg Unintended retention of a foreign body in a patient after surgery
Never_event
Prevention of human pregnancy
data regarding the sperm content of pre-ejaculatory fluid. While some tentative research did not find sperm, one trial found sperm present in 10 out of
Birth_control
2007 video game
ranging from smaller fish and penguins to whale sharks, manta rays and sperm whales, as well as dolphins and other cetaceans that can be trained to perform
Endless_Ocean
Medical Scientist
School, Boston, Ashok worked as the Director of the Andrology Laboratory and Sperm Bank at the Newton-Wellesley Hospital, Boston (Medical Director: Robert
Ashok_Agarwal
Permanent or temporary changes to human sex organs
issues with fertility (due to lack of control over what direction the sperm goes after ejaculation), and may require a man to sit down while urinating
Genital modification and mutilation
Genital_modification_and_mutilation
2014 film directed by David Fincher
pregnancy minutes before the interview, having inseminated herself with Nick's sperm from a fertility clinic. Nick reacts violently but feels responsible for
Gone_Girl_(film)
Constraint in sexual behavior
constrained by social and sexual inhibitions and taboos from accepting a sperm donor or a friend to perform an intravaginal insemination, and the friend
Sexual_inhibition
American fertility policy analyst
purports to treat "root causes" of infertility such as endometriosis, low sperm count, hormonal imbalances and lifestyle factors. The New York Times described
Emma_Waters
Milkweed butterfly in the family Nymphalidae
copulation, a male transfers his spermatophore to a female. Along with sperm, the spermatophore provides a female with nutrition, which aids her in laying
Monarch_butterfly
Ancient Greek hero and founder of Mycenae
ceti, or Leviathans, of Antiquity with the modern understanding of the sperm whale, and therefore names Perseus as the progenitor and "prince" of all
Perseus
Intrauterine device
toxic to sperm and ova and impairs implantation.28,29 The production of cytotoxic peptides and activation of enzymes lead to inhibition of sperm motility
Hormonal_intrauterine_device
(Vernee Watson) is a nurse and receptionist at the hospital. She operates the sperm clinic during the original (unaired) Pilot episode when Leonard and Sheldon
List of The Big Bang Theory franchise characters
List_of_The_Big_Bang_Theory_franchise_characters
American author, actor, and humorist (born 1971)
episodes of the first season of Bored to Death, "The Case of the Stolen Sperm" and "Take a Dive," as a literary reviewer who wrote a bad review that offended
John_Hodgman
their impromptu civil ceremony at The Jockey. While giving a deposit to a sperm bank, Shane learned that he was sterile. Shane was upset at the thought
List of Shameless (British TV series) characters
List_of_Shameless_(British_TV_series)_characters
Class of perfluorinated chemical compounds
Colino, Stacey (2021). Count down: how our modern world Is threatening sperm counts, altering male and female reproductive development, and imperiling
PFAS
Human disease caused by paramyxovirus
may lead to abnormalities in sperm creation and fertility such as low sperm count, absence of sperm in semen, reduced sperm motility, reduced fertility
Mumps
Indian spice derived from Ferula roots
and antithrombotic effects. It has also been studied for its effects on sperm viability and for its involvement in chelation, modulation of enzymatic
Asafoetida
Growth of uterine-lining tissue elsewhere in the body
adhesions, can explain further instances of infertility, and in severe cases, sperm or egg cells may be fully blocked. Pain during sex may lead couples to avoid
Endometriosis
International treaty protecting cetaceans
Dolphin (Tursiops truncatus ponticus) Kogiidae Pygmy Sperm Whale (Kogia breviceps) Dwarf Sperm Whale (Kogia sima) Phocoenidae Harbour Porpoise (Phocoena
Agreement_on_the_Conservation_of_Cetaceans_of_the_Black_Sea,_Mediterranean_Sea_and_Contiguous_Atlantic_Area
American businessman and investor (1955–2011)
referred to his biological parents as "my sperm and egg bank. That's not harsh, it's just the way it was, a sperm bank thing, nothing more." I always thought
Steve_Jobs
2nd episode of the 3rd season of Ash vs Evil Dead
completely fine. Due to a comment by Kelly, Ash visits a sperm bank to see if someone used his sperm. Staring at the pornographic magazines, he decides to
Booth_Three
Non-surgical technique for the treatment of benign prostatic hyperplasia
urinary retention, temporary rectal bleeding, pain, blood in the urine/sperm, and urinary tract infection. Serious complications are rare (0.3%), and
Prostatic_artery_embolization
Culmination of a multiple pregnancy where two or more offspring are born
produced by three zygotes Sesquizygotic – an egg which is fertilized by 2 sperms, which produce 2 fetuses Multiple pregnancies are also classified by how
Multiple_birth
series ended, but when his brother died in a car crash (Matt had provided a sperm sample so his infertile brother and his wife could have a child through
List of Beverly Hills, 90210 characters
List_of_Beverly_Hills,_90210_characters
gender-expansive people, only two replacement words (chest for breasts and cum for sperm) were used by more than 50% of respondents, while 23% of the replacement
Terminology of transgender anatomy
Terminology_of_transgender_anatomy
American comedy horror television series
to prevent future risks. Ash later goes to the local sperm bank to investigate whether his sperm had been used, but Ruby summons the Kandarian Demon to
Ash_vs_Evil_Dead
List of characters in the Dexter franchise
killer. Niki Walters (Dora Madison Burge) is Masuka's long-lost daughter by sperm donation whom he hires as a lab assistant. Cassie Jollenston (Bethany Joy
List_of_Dexter_characters
Reporting of a rape where no rape has occurred
Retrieved 2017-12-06. "False Allegations of Rape and/or Domestic Abuse, see: Guidance for Charging Perverting the Course of Justice and Wasting Police Time in
False_accusation_of_rape
Protein-coding gene in humans
pattern Bgee Human Mouse (ortholog) Top expressed in buccal mucosa cell sperm secondary oocyte testicle right hemisphere of cerebellum left testis body
LHX4
Species of frog endemic to southwestern Australia
low sperm concentrations, and these sperm maintained motility for to 13 days under these conditions. This research may provide insight and guidance supporting
Günther's_toadlet
from semen released in a commercial swimming pool without penetration. The sperm cells would be quickly killed by the chlorinated water and would not survive
List of common misconceptions about science, technology, and mathematics
List_of_common_misconceptions_about_science,_technology,_and_mathematics
"Girls Ain't Nothing But Trouble" 43 14 "Sperm Bank" Guy Maxtone-Graham October 7, 1993 (1993-10-07) The duo sell sperm at the offices of Dr. Rod Johnson, and
List of Beavis and Butt-Head episodes
List_of_Beavis_and_Butt-Head_episodes
Family of marine mammals
have the second largest brain mass of any animal on earth, next to the sperm whale. The brain to body mass ratio in some is second only to humans. Self-awareness
Oceanic_dolphin
Process of re-creating an extinct organism
de-extinction process. Germ cells may be edited directly, so that the egg and sperm produced by the extant parent species will produce offspring of the extinct
De-extinction
Chemical compound
treatment of testes has been found to cause significant long-term reduction in sperm count. Further testing on this subject was abandoned due to the unexpected
Glycerol
Federal agency of the United States Department of Health and Human Services
mitigate diseases in a variety of contexts, from household pets to human sperm for use in assisted reproduction. The FDA is led by the commissioner of
Food_and_Drug_Administration
British-American mass murderer (1991–2014)
alive would be kept in "secret labs" and be "artificially inseminated" with sperm samples to become pregnant, ensuring men would be unaware of women's existence
Elliot_Rodger
Lowest body temperature each day
BBTs only show when ovulation has occurred; they do not predict ovulation. Sperm typically lasts for at least three days and can survive as long as a week
Basal_body_temperature
State of the reproductive system without evidence of disease, disorders, or deficiencies
impact: Number of sperm. Some reproductive hazards can stop or slow the actual production of sperm. This means that there will be fewer sperm present to fertilize
Sexual and reproductive health
Sexual_and_reproductive_health
American academic (born 1939)
which emphasizes autonomy, equity, and utility, fails to provide the moral guidance that the modern world demands: Repugnance, here as elsewhere, revolts against
Leon_Kass
Emerging technology field
successfully capture and transport sperm cells with motion deficiencies. The helix device would approach the sperm cell's tail and confine it with the
Nanorobotics
First man according to the Abrahamic creation myth
When Adam repents from his sin, he is forgiven by God. This is seen as a guidance for humanity, who sin, become aware of their mistake, and repent. In Gnostic
Adam
Islamic view of Abraham
life and causes death. And He created the pairs—males and females— from a sperm-drop when it is emitted. And it is upon Him to bring about re-creation.
Abraham_in_Islam
government, and Cuban agents over a supply of rare, high-quality cattle sperm. 83 13 "Vote of Confidence" Randy Roberts John Schulian 414 February 12
List_of_Miami_Vice_episodes
the legalisation of abortion in the Republic of Ireland, Steve Backshall Vs The Monster Mountain and 4 Men, 175 Babies: Britain's Super Sperm Donors.
List_of_Gogglebox_episodes
Protein-coding gene in the species Homo sapiens
(ortholog) Top expressed in ventricular zone hair follicle ganglionic eminence sperm retinal pigment epithelium endothelial cell entorhinal cortex middle temporal
LHX2
Domestic pigeons living outside human care
nicarbazin, interferes with the viability of eggs by binding the ZP-3 sperm receptor site in the egg. This unique contraceptive action is non-hormonal
Feral_pigeon
Hormonal medication used for birth control
preventing ovulation and closing off the cervix to prevent the passage of sperm. Levonorgestrel was patented in 1960 and introduced for medical use together
Levonorgestrel
Inherited neurodegenerative disorder
sufficient to cause the disease. Because the rate of mutation is higher in sperm cells, males are more likely to transmit expanded HTT alleles to their offspring
Huntington's_disease
The Rookie character
Whitlock (Camille Balsamo-Gillis) who they’ve discovered is the daughter via sperm donation to serial killer Thomas Clay Briggs (Colby French). Nolan takes
John_Nolan_(The_Rookie)
American actress (born 1960)
a comedy-drama about a lesbian couple whose teenage children find their sperm donor. The role of Jules Allgood was written for her by writer-director
Julianne_Moore
Large baleen whale species
which is when females reach estrus and males reach peak testosterone and sperm levels. Humpback whales are polygynandrous (both sexes have multiple partners)
Humpback_whale
Species of fly
occurs on vegetation. Females copulate only once and retain the male's sperm for life, a fact which has been exploited in eradication programs using
Cochliomyia_hominivorax
British comedy-drama TV series
David's marriage guidance session in series 1, episode 5, and consulted Dr Sammy Lee for information about Rachel's intracytoplasmic sperm injection in series
Cold_Feet
German tennis player, coach, and commentator (born 1967)
with Ermakova. His lawyers made allegations that Ermakova had stolen his sperm and used it to inseminate herself after the encounter. Subsequently, he
Boris_Becker
US medical association
ASIN B001C0ITLO. Morton, Catriona (July 5, 2023). "Let People Collect Sperm From the Dead". Wired. Retrieved September 30, 2024. "Embryo battles are
American Society for Reproductive Medicine
American_Society_for_Reproductive_Medicine
Gender-affirming medical treatment
permanency, but a permanent impact of estrogen therapy on sperm quality is likely and sperm preservation options should be counseled on and considered
Gender-affirming hormone therapy
Gender-affirming_hormone_therapy
2015 fantasy TV series episode list
to a pregnant Poppy, and they discover that the elixir is actually the sperm of a male dragon that Poppy has used to fertilize a dragon egg she can raise
List of The Magicians (American TV series) episodes
List_of_The_Magicians_(American_TV_series)_episodes
had been forecast to remain at 5.2%. The Family Court rules that prolific sperm donor Robert Albon cannot have his name placed on the birth certificate
2026_in_the_United_Kingdom
Genetic brain disorder
the male copy of the X chromosome. It is not yet known what causes the sperm to mutate, and such mutations are rare. It can also be inherited from phenotypically
Rett_syndrome
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