 |
Search Results
331 images for OVULATION
Page 1 of 2
Illustration of the fertilisation of a Cycad (Gymnosperm), showing female cone, male cone, sporangium of male cone, pollen gr...
Illustration of the fertilisation of a Cycad (Gymnosperm), showing female cone, male cone, sporangium of male cone, pollen grain, ovule before fertilization, ovule trapping pollen, fertilization occurring, seeds ripening and ready to be released
Portrait of stylish woman with retro hairstyle watching sand in hourglass tick away, studio shot
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly...
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly releases estrogen and progestin hormones into the body. These hormones stop ovulation and thicken the cervical mucus, creating a barrier to prevent sperm from fertilizing an egg.
Portrait of stylish woman with retro hairstyle watching sand in hourglass tick away, studio shot
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be take...
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly...
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly releases estrogen and progestin hormones into the body. These hormones stop ovulation and thicken the cervical mucus, creating a barrier to prevent sperm from fertilizing an egg.
Apple as ovule and cherries shaped as spermatozoons, abstract concept fertilization, insemination, crossbreeding
TRIPTORELIN. Photo essay in a medically assisted procreation centre at the Pierre Rouques hospital ´Les Bluets´, Paris, Franc...
TRIPTORELIN. Photo essay in a medically assisted procreation centre at the Pierre Rouques hospital ´Les Bluets´, Paris, France. Decapeptyl active principle : Triptoreline, pharmacological class : GnRH analog. This drug is used in the treatment of feminine infertility to induce an ovulation before an in vitro fertilization, in association with gonadotropins. It is also used in treatment of hormono_dependant cancer prostate with metastases hormonotherapy.
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly...
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly releases estrogen and progestin hormones into the body. These hormones stop ovulation and thicken the cervical mucus, creating a barrier to prevent sperm from fertilizing an egg.
Woman holding a blackboard with SEX EDUCATION and an illustration of the female reproductive system drawn on it in chalk
SEMINOMA, HISTOLOGY. SEMINOMA, HISTOLOGY Seminoma of the testicle histological section, optical microscopy. A seminoma is a c...
SEMINOMA, HISTOLOGY. SEMINOMA, HISTOLOGY Seminoma of the testicle histological section, optical microscopy. A seminoma is a cancer of the germinal cells :precusor cells of the spermatozoids in the testicles or precursor cells of the ovules in the ovaries. The seminoma of the testicle represents 40 of testicular tumors , most of the time it appears in young men 30 years old
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be take...
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
GENE THERAPY. GENE THERAPY Genetic manipulation. Representation of the different stages of genetic manipulation of human embr...
GENE THERAPY. GENE THERAPY Genetic manipulation. Representation of the different stages of genetic manipulation of human embryos with the intention of doing embryonic gene therapy or create of mutants men. An ovum is sampled, fertilized in vitro then modified genetically by gene transfer , the embryo resulting is then re_implanted into the uterus of the mother.
MENOPAUSE, ILLUSTRATION. MENOPAUSE, ILLUSTRATION Representation of hormonal disruption during menopause leading to the lack o...
MENOPAUSE, ILLUSTRATION. MENOPAUSE, ILLUSTRATION Representation of hormonal disruption during menopause leading to the lack of ovulation and the halt of periods. The woman is no longer fertile. The ovary reponds less and less to FSH and LH secreted by the pituitary gland, the ovulation is then occuring less often. The rate of inhibine, estrogen and progesterone secreted by the ovary decreases, reducing the negative feedback of FSH and LH, of which the secretion then increases, which provokes hot
Contraception. Vaginal ring and contraceptive pills. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptiv...
Contraception. Vaginal ring and contraceptive pills. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly releases estrogen and progestin hormones into the body. These hormones stop ovulation and thicken the cervical mucus, creating a barrier to prevent sperm from fertilizing an egg.
PUBERTY, DRAWING. The puberty and the hormonal and physical modifications. Representation for the boy and for the girl of the...
PUBERTY, DRAWING. The puberty and the hormonal and physical modifications. Representation for the boy and for the girl of the changes observed during puberty at the level of genital organs, of the areas on silhouettes of sexual secondary characters and other developped sp
GENETICS, CLONING. GENETICS, CLONING Clone therapy consists of transferring the nucleus from an adult somatic cell to a enucl...
GENETICS, CLONING. GENETICS, CLONING Clone therapy consists of transferring the nucleus from an adult somatic cell to a enucleated ovule, to obtain embryonic stem cells. The cells are then cultivated in vitro to obtain a cell line or tissues that can be used for therapeutic purposes. Culturing of in vitro cells is represented here. Image 2 of 3. See also images 0276603 and 0276803.
IUD. IUD An intrauterine device (IUD) is inserted into the uterus to prevent conception. The device can be withdrawn by pulli...
IUD. IUD An intrauterine device (IUD) is inserted into the uterus to prevent conception. The device can be withdrawn by pulling on the thread which extends to the vagina. “Active” devices contain copper or progesterone, which changes the uterine mucosa and prevents implantation of the fertilized egg. Complications include infection of the uterine tube (salpingitis). Intrauterine devices are not recommended for women who have not had children. Here the IUD is shown in yellow with the threads u
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly...
Contraception. The vaginal ring (Nuvaring) is a hormonal estroprogestative contraceptive. Inserted into the vagina, it slowly releases estrogen and progestin hormones into the body. These hormones stop ovulation and thicken the cervical mucus, creating a barrier to prevent sperm from fertilizing an egg.
Marsh marigold carpel. Light micrograph of a transverse section through the carpel of a marsh marigold Caltha palustris flowe...
Marsh marigold carpel. Light micrograph of a transverse section through the carpel of a marsh marigold Caltha palustris flower. The ovules dark purple contain meiotic embryonic cells light purple. Pollen grains orange are present on the carpel surface. Ma
Ovary. Ultrasound scan of an ovary after ovulation : when the follicle is mature, it ejects the ovum in the fallopian tube. T...
Ovary. Ultrasound scan of an ovary after ovulation : when the follicle is mature, it ejects the ovum in the fallopian tube. The follicular antrum becomes then a gland called corpus luteum.
GENETICS, CLONING. GENETICS, CLONING Clone therapy consists of transferring the nucleus from an adult somatic cell to a enucl...
GENETICS, CLONING. GENETICS, CLONING Clone therapy consists of transferring the nucleus from an adult somatic cell to a enucleated ovule, to obtain embryonic stem cells. The cells are then cultivated in vitro to obtain a cell line or tissues that can be used for therapeutic purposes. Differentiation of stem cells is represented here. Image 3 of 3. See also images 0276603 and 0276703.
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be take...
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
FERTILIZATION, DRAWING. Expulsion of an ovum pink and blue by the ovary yellow. Fertilization fusion of an ovum and a spermat...
FERTILIZATION, DRAWING. Expulsion of an ovum pink and blue by the ovary yellow. Fertilization fusion of an ovum and a spermatozoid in the uterine tubes gives rise to an egg. The egg then migrates to the uterus for nidation penetration of the fertilized egg in the mucosal
Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken...
Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
FERTILIZATION, DRAWING. Ovulation discharge of an ovum from the follicle, fertilization in the uterine tubes giving an egg, t...
FERTILIZATION, DRAWING. Ovulation discharge of an ovum from the follicle, fertilization in the uterine tubes giving an egg, then implantation in the uterus and development of the embryo. On the left, from top to bottom, fertilization fusion of an ovum and a spermatozoid, div
GYNECOLOGY, ILLUSTRATION. GYNECOLOGY, ILLUSTRATION The female genital system includes all the organs involved in reproduction...
GYNECOLOGY, ILLUSTRATION. GYNECOLOGY, ILLUSTRATION The female genital system includes all the organs involved in reproduction. The ovaries secrete female hormones and release ova or eggs. After their release from the ovary, ova enter the Fallopian tubes where fertilization takes place. The fertilized egg then migrates to the uterus, a hollow cone-shaped organ lying between the urinary bladder and the rectum. The lower part of the uterus is continuous with the cervix which opens into the vagin
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be take...
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
GENETICS, CLONING. GENETICS, CLONING Illustration of horizontal reproductive cloning. An ovule is taken from a female donor m...
GENETICS, CLONING. GENETICS, CLONING Illustration of horizontal reproductive cloning. An ovule is taken from a female donor monkey. It is fertilized in vitro with spermatozoids from a male donor monkey. After three days, the egg has divided into eight identical cells from which the nuclei, containing the genetic code of the two donors, is removed and implanted into the cytoplasm of receiving ovules from other female monkeys. These new ovules are transferred to surrogate mother monkeys who wi
Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken...
Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
Marsh marigold carpel. Light micrograph of a transverse section through the carpel of a marsh marigold Caltha palustris flowe...
Marsh marigold carpel. Light micrograph of a transverse section through the carpel of a marsh marigold Caltha palustris flower. The ovules dark green contain meiotic embryonic cells brown. Pollen grains blue are present on the carpel surface. Magnificatio
SEMINOMA, HISTOLOGY. SEMINOMA, HISTOLOGY Seminoma of the testicle histological section, optical microscopy. A seminoma is a c...
SEMINOMA, HISTOLOGY. SEMINOMA, HISTOLOGY Seminoma of the testicle histological section, optical microscopy. A seminoma is a cancer of the germinal cells :precusor cells of the spermatozoids in the testicles or precursor cells of the ovules in the ovaries. The seminoma of the testicle represents 40 of testicular tumors , most of the time it appears in young men 30 years old
INSEMINATION, DRAWING. INSEMINATION, DRAWING Reproduction, the destiny of a chromosome. Illustration of the fertilization of ...
INSEMINATION, DRAWING. INSEMINATION, DRAWING Reproduction, the destiny of a chromosome. Illustration of the fertilization of an ovum by a spermatozoid possessing the ´Y´ chromosome and the initial moments of fusion, migration and division of the two genetic entities, resulting, nine months later, in the birth of a baby boy.
Portrait of stylish woman with retro hairstyle sitting with hourglass ticking away, studio shot
Decorative arrangement of nine colorful shells including the cowrie, mitra, Peruvian olive and terebellum.. . Ancillaire bord...
Decorative arrangement of nine colorful shells including the cowrie, mitra, Peruvian olive and terebellum.. . Ancillaire bordee : Ancillaria marginata. Volvaire hyaline : Volvaria pallida. Marginelle diatanson : Marginella Adansoni. Mitre scabriuscule : Mitra scabriuscula. Cariere subulie : Terebellum subulatum. Ovule intermediaire : Ovula intermedia. Olive de Pereu : Olive Peruviana. Porcelaine buffenne : Cyproea scurra. . Handcolored engraving by Pretre from Charles d'Orbigny's "Dictionnaire U
IVF. IVF Béclère Hospital. A culturing dish. Sequence of ovocyte removal. Storage of ovocytes.
INSEMINATION, DRAWING. INSEMINATION, DRAWING Spermatozoa penetrating an oocyte. Illustration of spermatozoa attempting to pen...
INSEMINATION, DRAWING. INSEMINATION, DRAWING Spermatozoa penetrating an oocyte. Illustration of spermatozoa attempting to penetrate an oocyte. Before completely penetrating an oocyte, the spermatozoon must cross a barrier of follicular cells to reach the zona pellicuda.
INSEMINATION. INSEMINATION At fertilization, several thousand spermatozoids surround the ovum, but only one will enter the ov...
INSEMINATION. INSEMINATION At fertilization, several thousand spermatozoids surround the ovum, but only one will enter the ovum and fertilize it. The spermatozoid penetrates the ovum by secreting enzymes which open the cell layers enveloping the ovum. Once the spermatozoid has entered the ovum, the genetic material contained in the nucleus of the ovum and the spermatozoid fusion. The tail of the spermatozoid falls off and the fertilized egg becomes impermeable to other spermatozoids.
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be take...
Emergency contraception Doctor holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken...
Emergency contraception Woman holding a packet containing an emergency contraceptive pill The morning-after pill may be taken in the first 72 hours after unprotected sex It contains a synthetic hormone known as levonorgestrel that disrupts ovulation and also may prevent the fertilised egg from implanting in the uterus
SEMINOMA, HISTOLOGY. SEMINOMA, HISTOLOGY Seminoma of the testicle histological section, optical microscopy. A seminoma is a c...
SEMINOMA, HISTOLOGY. SEMINOMA, HISTOLOGY Seminoma of the testicle histological section, optical microscopy. A seminoma is a cancer of the germinal cells :precusor cells of the spermatozoids in the testicles or precursor cells of the ovules in the ovaries. The seminoma of the testicle represents 40 of testicular tumors , most of the time it appears in young men 30 years old
Page 1 of 2
