What You Need: Play a YouTube video > Click the Download button > hit the Downloaded tab and then Convert > Choose Apple > Tick Export to iTunes. # 3. Enable Captions on a Video. Tap the Menu icon > Select the CC option (Only for the videos that have closed captioning available).
The endometrium is functionally subdivided into two layers. 1  The stratum functionalis is a thick superficial layer that is sloughed off during menstruation and grows anew during each cycle.  The stratum basalis consists of permanent stromal tissue and deep ends of the uterine glands.
During the menstrual phase, pregnancy occurs when an ovulated egg is fertilized by a sperm and implants itself in the lining of the uterus (the endometrium). Progesterone and estrogen levels drop if pregnancy does not occur, causing the uterus to shed its unused lining and expel it along with blood (menstruation).ou might picture it as a kind of solid wall, but the endometrium is actually a layer of tissue consisting of cells, capillaries, and glands that produce secretions. When menstruation begins, the functional surface layer of the endometrium breaks down and peels off. This is what causes bleeding during a period.