Illustration of the menstrual cycle over 28 days without fertilization after ovulation. From top to bottom, Illustration of the ovarian cycle, Graph...
Illustration of the fertilization of an egg followed by the migration and implantation of the embryo in the endometrium. The close-ups show the egg...
Oxe Eye Daisy and Crown Daisy, from 'Hortus Eystettensis', by Basil Besler , pub. 1613 (h I Bellis maior, now Leucanthemum; II Chrysanthaemum...
Five Tulips, from 'Hortus Eystettensis', by Basil Besler , pub. 1613 (hand-coloured engra I Tulipa lutea virgulis oblongi ad latera, colore...
Luteal phase, The luteal phase is characterized by the transformation of the graafian follicle into the corpus luteum, which secretes progesterone.
Luteal phase, The luteal phase is characterized by the transformation of the graafian follicle into the corpus luteum, which secretes progesterone.
Illustration of an ovary with the secretion of progesterone by the corpus leteum, the secretion of oestrogen by the follicles, and ovulation.
an ovum being released from an ovary, sperm penetrating the ovum and the resulting zygote implanting on the endometrium wall. - corpus luteum 幅插畫檔、美工圖案、卡通及圖標
this image depicts a midsagittal section of the uterus within the female reproductive system. - corpus luteum 幅插畫檔、美工圖案、卡通及圖標
this image depicts a midsagittal section of the uterus within the female reproductive system. - corpus luteum 幅插畫檔、美工圖案、卡通及圖標
this image depicts a three quarter view of the female reproductive organs. - corpus luteum 幅插畫檔、美工圖案、卡通及圖標
Menstrual cycle without fertilization. Schematic representation of the course of the menstrual cycle over 29 days without fertilization after...
Menstrual cycle with fertilization. Schematic representation of the course of the menstrual cycle over 32 days with fertilization after ovulation....
The menstrual cycle and the periods of fertility. Top: genitalia during fertilization. Bottom: ovarian cycle, hormonal cycle, uterine cycle,...
Nervous System, Including The Brain, Skull, Cerebellum, Spinal Cord, Terminal Filum, Sacrum, Corpus Callosum, Hypothalamus, Pituitary, Thalamus,...
