ovary and to theuterusUterusThe uterus, cervix, and fallopian tubes are part of the internal female reproductive system. The uterus has a thick wall made of smooth muscle (the myometrium) and an inner mucosal layer (the endometrium). The most inferior portion of the uterus is the cervix, ...
the DNA coiled into chromosomal bundles in the nucleus of our cells. We inherit half of our nuclear DNA from our father, and half from our mother. However, mitochondrial DNA (mtDNA) comes only from the mitochondria in the cytoplasm of the fat ovum we inherit from our mother. Sh...
The production of sperm cells is known as spermatogenesis. This process occurs continuously and takes place within the male testes. Hundreds of millions of sperm must be released in order for fertilization to take place. The vast majority of sperm released never reach the ovum. In oogenesis or ...
Among all the given examples of birth control, the most effective is abstinence (AB-stih-nints). If two people do not have intercourse, sperm cannot fertilize an egg, and pregnancy is impossible. For all contraception, it is essential to consult your healthcare provider to find the proper ...
The female reproductive system consists of the following:Ovaries: Produces ovum – female egg as well as the hormone estrogen. Uterine tubes: Oviducts or fallopian tubes are the other names given for uterus tubes.Also known as the womb, the uterus is a pear-shaped organ where the fetus grows...
Laparoscopic tubal ligation, on the other hand, involves insertion of a laparoscope through a small incision near the umbilicus. Ectopic tubal pregnancy When a fertilised ovum implants in the mucosa of the uterine tubes this is referred to as an ectopic tubal pregnancy. This may occur due to ...
ABSTRACT OF TWO: Lectures ON THE ANATOMY AND PHYSIOLOGY OF THE OVUM IN THE EARLY MONTHS OF PREGNANCY - ScienceDirectDr. R.J. Lee ASSISTANT OBSTETRIC PHYSICIAN AND LECTURER ON MIDWIFERY AT ST. GEORGE'S HOSPITAL.
the digestive tract) and the dorsally located neural tube (i.e., the spinal cord). Between the tubes lies the rod—the notochord in the embryo, which becomes the vertebral column prior to birth. (The termsdorsalandventralrefer respectively to the back and the front, or belly, of an anima...
The fallopian tubes are a pair of muscular, J-shaped tubes in the female reproductive system that connect the ovaries to the uterus. They are responsible for transporting egg cells (ovum) from the ovaries to the uterus. A fallopian tube may also be called a uterine tube, oviduct, or ...
(一)Anatomyofovary(二)Histologyofovary(三)Functionsofovary (一)Anatomyofovary 图1·几种家畜卵巢的比较1．生殖上皮2．髓质部3．皮质部4．卵泡5．黄体76．生殖上皮(排卵窝)FIGURE2-5.Comparativeparametersoffemalereproductiveanatomy.(1)Ovariandifferencesresultingfromspeciesmorphologyandfunctionalchanges.A,sowovary...