| cortical granule | <cell biology, gynaecology> Specialised secretory vesicles lying just below the plasma membrane of the egg, that fuse and release their contents immediately after fertilization (activation) to prevent polyspermy. (13 Nov 1997) |
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| cortical hormones | Steroid hormone's produced by the adrenal cortex. (05 Mar 2000) |
| cortical implantation | Implantation of blastocyst in the ovarian cortex, causing an ovarian pregnancy. See: ectopic pregnancy. (05 Mar 2000) |
| cortical layer | Sub plasmalemmal layer of tangled microfilaments anchored to the plasma membrane by their barbed ends. This meshwork contributes to the mechanical properties of the cell surface and probably restricts the access of cytoplasmic vesicles to the plasma membrane. (18 Nov 1997) |
| cortical lobules of kidney | One of the subdivisions of the kidney, consisting of a medullary ray and that portion of the convoluted port (renal corpuscles and convoluted tubules) associated with its collecting duct. Synonym: lobulus corticalis renalis, renal cortical lobule, renculus, reniculus, renunculus. (05 Mar 2000) |
| cortical meshwork | Sub plasmalemmal layer of tangled microfilaments anchored to the plasma membrane by their barbed ends. This meshwork contributes to the mechanical properties of the cell surface and probably restricts the access of cytoplasmic vesicles to the plasma membrane. (18 Nov 1997) |
| cortical nephrocalcinosis | <radiology> Acute cortical necrosis (secondary to hypotensive episode), postpartum necrosis, primary oxalosis, chronic glomerulonephritis, chronic transplant rejection see also: renal calcification (12 Dec 1998) |
| cortical osteitis | Periostitis with involvement of the superficial layer of bone. (05 Mar 2000) |
| cortical part | cortical part |
| cortical part of middle cerebral artery | <anatomy, artery> See: middle cerebral artery. Synonym: pars corticalis arteriae cerebralis mediae. (05 Mar 2000) |
| cortical reaction | The reaction of an egg cell to fertilization which changes its surface cell membrane and prevents additional sperm cells from entering (among other things). (09 Oct 1997) |
| cortical sensibility | The integration of sensory stimuli by the cerebral cortex. (05 Mar 2000) |
| cortical substance | The superficial thin layer of compact bone. Synonym: substantia corticalis, cortical substance. (05 Mar 2000) |
| cortical vesicle | A vesicle, or membrane-bound bubble, in an animal egg cell that releases proteases and other enzymes immediately after fertilization, chiefly to change the egg's surface cell membrane so that no more sperm cells can enter. (09 Oct 1997) |
| hyperostosis, cortical, congenital | A disease of young infants characterised by soft tissue swellings over the affected bones, fever, and irritability, and marked by periods of remission and exacerbation. (12 Dec 1998) |