Re Production Collection (page 10)

Single-celled embryo, artwork
Single-celled embryo. Image 1 of 4. Computer model representing a single cell. The development of an embryo is called embryogenesis

Human fertilisation
Sperm fertilising egg. Computer illustration of sperm cells (at right) approaching a human egg (at left). One of the sperm is fertilising it

Coloured SEM showing the ovulation process
Ovulation. Coloured scanning electron micrograph of the ovulation process. The egg (red at centre) has ruptured the external surface of the ovary (dark green), known as the germinal epithelium

Artwork of a human egg cell in the primordial follicle phase which occurs after seven months of fetal development. The egg cell is surrounded by a thick layer of follicular cells known as zona

Light micrograph of human sperm cells

2-cell embryo embryo, artwork
2-cell embryo. Image 2 of 4. Computer model representing 2 daughter cells. The development of an embryo is called embryogenesis

False-colour SEM of human egg after ovulation
Ovarys surface at ovulation. False-colour scanning electron micrograph of the surface of the ovary about one hour after ovulation

Sperm in the testis, TEM
Sperm cells. Coloured transmission electron micrograph (TEM) of a section through the testis, showing sperm cells. The heads of the sperm, which contain the genetic material, are red

False-colour SEM of human sperm in the uterus

Sperm tails, TEM
Sperm tails. Coloured transmission electron micrograph (TEM) of cross sections through sperm tails. A sperms tails ability to move is partly due to the arrangement of microtubules

Human sperm

Sperm cell, computer artwork
Sperm cell. Computer artwork of a human sperm cell, showing its inner structure. The sperm head (orange) carries genetic material

LM of immature human oocyte with germinal vesicle
Light micrograph of an immature human oocyte (the female egg cell) containing a germinal body, the large cell nucleus. Oocytes are formed in the ovaries

Dividing cell. Differential interference contrast (DIC) light micrograph of a cell (lower left) in the metaphase stage of mitosis (cell division). The cells nuclei are stained with fluorescent dye

Gender determination, computer artwork. Gender is determined by the sex chromosomes, X and Y. Females have 2 X chromosomes and men an X and a Y chromosome

False-colour SEM of sperm in uterus
Sperm in uterus. False-colour scanning electron micrograph of a human sperm on the inner surface of the uterus, the endometrium

Embryo in a fallopian tube, artwork
Embryo inside a fallopian tube. Computer artwork representing an embryo (yellow) in the early stages of development inside a fallopian tube. Fallopian tubes lead from the ovaries to the uterus

False-colour SEM of human egg surrounded by sperm

Artwork of section through human testis
Illustration of a section through a single human testis, one of a pair of male sex organs that are the site of production of spermatozoa (spermatogenesis) and androgen, the male sex hormone

Colour SEM of seminiferous tubule of the testis
Seminiferous tubule. Coloured Scanning Electron Micrograph (SEM) of a sectioned seminiferous tubule, the site of sperm production in the human testis

Ovarian tissue, SEM
Ovarian tissue. Coloured scanning electron micrograph (SEM) of a section through the medulla of an ovary showing blood vessels (pink)

Artwork of a healthy breast
Healthy breast. Artwork of a normal female breast, seen in side view. The nipple is seen at lower right, with the glandular lobules which secrete milk seen as leaf-like structures within the breast

Corpus luteum, SEM
Corpus luteum. Coloured scanning electron micrograph (SEM) of a corpus luteum, or yellow body (brown), in an ovary. The corpus luteum is formed after ovulation

False-colour SEM of human seminiferous tubules
False-colour scanning electron micrograph of seminiferous tubules in the human testis (cross section), the site of production and maturation of sperm

Coloured SEM of a secreting uterine gland

Fallopian tube. Coloured scanning electron micrograph (SEM) of the epithelium of a fallopian tube (oviduct), one of two muscular tubes connecting the ovary to the uterus (womb)

Collapsed ovarian follicle, SEM
Collapsed ovarian follicle. Coloured scanning electron micrograph (SEM) of an ovarian follicle just after ovulation (release of an egg)

Womans breasts
MODEL RELEASED. Womans breasts, coloured image

Human epididymis, light micrograph
Human epididymis. Light micrograph of a section through a human epididymis, the tube connecting the testis to the vas deferens, in which sperm matures

Fimbriae of a Fallopian tube, SEM
Fimbriae of a Fallopian tube, coloured scanning electron micrograph (SEM). The fimbriae are folds at the opening of a Fallopian tube, where it opens next to an ovary

Coloured SEM of fallopian tube cilia & microvilli
Fallopian tube cells. Coloured high resolution scanning electron micrograph of cilia and micro- villi on the surface of the fallopian tube epithelium

Seminiferous tubule of testis
Seminiferous tubule. Coloured scanning electron micrograph (SEM) of a sectioned seminiferous tubule, the site of sperm production in the human testis

Internal wall of uterus, SEM
Internal wall of uterus. Coloured scanning electron micrograph of the mucosa, also known as endometrium, lining the body of the human uterus

Uterine lining, SEM
Uterine lining. Coloured scanning electron micrograph (SEM) of the lining of a uterus. This is the endometrium, a highly-folded mucous membrane that is covered with ciliated epithelial cells

Follicles in a human ovary, micrograph
Developing follicles in a human ovary, light micrograph. Three developing Graafian follicles are seen. A Graafian follicle is a structure in the ovaries from which an ovum (egg cell) is released

Lactating breast tissue, SEM

Artwork of ovum (egg) development in womans ovary
Ovum development. Illustration showing the development of a human ovum (egg) in an ovary (pink, at lower centre) during the menstrual cycle

Immunofluorescent LM of normal breast cells

Colour SEM of seminiferous tubules of the testis
Seminiferous tubules. Coloured Scanning Electron Micrograph (SEM) of sectioned seminiferous tubules the site of sperm production in the human testis

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Exploring the wonders of reproduction through time and nature. 🌍🔬 From the intricate Catalan Atlas of the 14th century to Da Vinci's innovative crossbow, humans have always sought ways to understand and enhance reproduction. Witness the ancient mating rituals of Tyrannosaurus rex dinosaurs captured in fossils, or marvel at the microscopic beauty of a uterus lining during menstruation under an SEM microscope. Delve into the miracle of life with illustrations showcasing the human placenta or observe English oak acorns as they prepare for their own reproductive journey. Discover nature's secrets with stunning images of geranium anthers and dahlia flower pollen magnified by SEM technology. Follow maple seed flight paths as they embark on their quest for new beginnings, just like Robert Louis Stevenson once wrote about in his captivating works on reproduction. Dive deep into marine life with sea cucumbers, fascinating creatures that possess unique methods of reproduction. And finally, explore the intricate world of plant fertility with mesmerizing SEM images capturing pollen grains in all their glory. Join us on this incredible journey through time and nature as we unravel the mysteries behind 'reproduction'.