| 词汇 | follicle |
| 释义 | follicle noun[ C ] uk /ˈfɒl.ɪ.kəl/ us /ˈfɑː.lɪ.kəl/ any of the very small holes in the skin, especially one that a hair grows from（毛）囊 The skin, & skin colour anti-wrinkle ashy basal cell blush complexion corium flushed freckle-faced peaches and cream percutaneous perionychium permatan pigmented rubicund strawberry mark subcutaneous veined wanly webbing wheat complexion A gland may be a simple pocket, or follicle, as is an oil gland of the skin, or it may be an aggregate of such glands, as is the liver. The hair grows from the bottom of the follicle by a multiplication of the cells covering the papilla upon which its root is moulded. The quantity of hair varies according to the proximity and condition of the follicles. The saliva is composed of four elementary secretions, derived respectively, from the mucous follicles of the mouth, and the parotid, the submaxillary, and the sublingual glands. These glands terminating in the hair follicles secrete an oily substance, which bathes and lubricates as well as nourishes the hair. follicle | American Dictionaryfollicle noun[ C ] us/ˈfɑl·ɪ·kəl/ biology any of the very small holes in the skin that a hair grows from biology A follicle is also a structure like a small bag in a woman's ovary (= organ that produces eggs) in which an egg develops Examples of folliclefollicle Eggs and follicles were photographed by immunofluorescence microscopy. The cultured follicles developed an antrum, demonstrating that the follicles survived. The total numbers of follicles are given in parentheses. In the primordial follicle oocytes reach the dictyate stage of prophase 1, at which point meiotic arrests occurs. The development and maturation of a follicle are highly involved processes. Extracellular and intracellular factors affecting nuclear and cytoplasmic maturation of porcine oocytes collected from different sizes of follicles. The resumption of meiotic maturation can be triggered also after the liberation of the oocytes from their follicles in vitro. The follicle cells have an ovoid nucleus containing a large prominent nucleolus with a conspicuous granular component. Cloned transgenic offspring resulting from somatic cell nuclear transfer in the goat: oocytes derived from both follicle-stimulating hormone-stimulated and nonstimulated abattoir-derived ovaries. Co-culture of mouse embryos with cells isolated from the human ovarian follicle, oviduct and uterine endometrium. Isolated follicles were measured with an eyepiece micrometer in a stereoscopic microscope. Isolated follicles were measured with an eyepiece micrometer in a microscope stereoscope. Fractionation did not induce any notable changes in follicle size. Follicular volumes increased with maturity of the follicle. Induction of maturation in cumulus cell-enclosed mouse oocytes by follicle stimulating hormone and epidermal growth factor: evidence for a positive stimulus of somatic cell origin. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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