List Anatomy – O
Egg cells, unlike the male reproductive cells, multiply, their number increases in embryos, females, ie, in females. When the fetus is still in the womb. Thus, the so-called primordial follicles are formed, located in the deep layers of the cortical substance of the ovary. Each such primordial follicle contains a young female sex cell - an ovony, surrounded by a single layer of follicular cells.
Fallopian tube (fallopian tube, tuba uterina, s.salpinx) - paired organ, serves to carry the ovum from the ovary (from the peritoneal cavity) into the uterine cavity. Fallopian tubes are located in the cavity of the small pelvis and represent a cylindrical shape of the ducts that run from the uterus to the ovaries.
Ovary (ovarium, Greek oophoron) - paired organ, female genital gland, located in the cavity of the small pelvis behind the wide ligament of the uterus. Ovaries develop and mature female sex cells (ovules), as well as female sex hormones that enter the blood and lymph.
The external oblique abdominal muscle (m. Obliquus extemus abdominis) is the most superficial and extensive of the abdominal muscles. It begins with large teeth on the outer surface of the eight lower ribs. The upper five muscle teeth enter between the teeth of the anterior dentate muscle, and the lower three - between the teeth of the latissimus muscle of the back.
The outer ear (auris externa) includes the auricle and the external auditory meatus, which form a kind of funnel for catching sounds and directing the sound wave to the eardrum.
The organs of the hematopoiesis and the immune system are closely related to each other by a common structure, origin and functions. Reticular tissue is the stroma and bone marrow (the organ of the hematopoiesis), and the organs of the immune system.
Orbit of the eye is a pear-shaped cavity, the exit from which is represented by the optic nerve channel. Its intraorbital portion is longer (25 mm) than the distance from the posterior pole of the eye to the optic nerve channel (18 mm).
Vomer (vomer) - unpaired bone plate, participates in the formation of the bony septum of the nose. The lower edge of the opener fuses with the nasal crests of the maxilla and palatine bone.
Olfactory nerves (nn. Olfactorii) are formed by axons of olfactory (receptor) cells located in the mucosa of the olfactory region of the nasal cavity.
The oculomotorius nerve (n. Oculomotorius) is mixed, has motor and autonomic nervous fibers, which are the processes of the cells of the corresponding nuclei located in the midbrain.
The occipital lobe (lobus occipitalis) is located behind the parieto-occipital furrow and its conditional continuation on the upperlateral surface of the hemisphere. In comparison with other shares, it has small dimensions.
The occipital bone (os occipitale) is located in the posterior part of the brain area of the skull. In this bone, the basilar part, the two lateral parts and the occipital scales, which surround the large (occipital) foramen (foramen magnum), are distinguished.