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1. an enclosing structure, as a soluble container enclosing a dose of medicine.
2. a cartilaginous, fatty, fibrous, or membranous structure enveloping another structure, organ, or part. adj., adj cap´sular.
articular capsule the saclike envelope that encloses the cavity of a synovial joint by attaching to the circumference of the articular end of each involved bone. Called also joint capsule.
adipose renal capsule the investment of fat surrounding the fibrous renal capsule, continuous at the hilus with the fat in the renal sinus.
bacterial capsule a gelatinous envelope surrounding a bacterial cell, usually polysaccharide but sometimes polypeptide in nature; it is associated with the virulence of pathogenic bacteria.
Bowman's capsule the globular dilatation forming the beginning of a renal tubule and surrounding the glomerulus. Called also glomerular capsule and malpighian capsule.
c's of the brain two layers of white matter in the substance of the brain; external capsule and internal capsule.
external capsule the layer of white fibers between the putamen and claustrum.
fibrous renal capsule the connective tissue investment of the kidney, which continues through the hilus to line the renal sinus.
Glisson's capsule a sheath of connective tissue accompanying the hepatic ducts and vessels through the hepatic portal. In hepatitis it may become stretched, which is a common cause of pain.
glomerular capsule Bowman's capsule.
capsule of heart pericardium.
internal capsule the fanlike mass of white fibers separating the lentiform nucleus laterally from the head of the caudate nucleus, the dorsal thalamus, and the tail of the caudate nucleus medially. The internal capsule carries both afferent and efferent fibers of the cerebral cortex.
joint capsule articular capsule.
capsule of lens the elastic sac enclosing the lens of the eye.
malpighian capsule Bowman's capsule.
capsule of pancreas a thin sheath of areolar tissue that invests the pancreas (but does not form a definite capsule), the septa of which extend into the gland and divide it into lobules.
renal c's the investing tissue around the kidney, divided into the fibrous renal capsule and the adipose renal capsule.
Tenon's capsule the connective tissue enveloping the posterior eyeball.
the expanded beginning of a nephron composed of inner and outer layers: the visceral layer consists of podocytes that surround a tuft of capillaries (glomerulus); the parietal layer is simple squamous epithelium that becomes cuboid at the tubular pole.
Bowman's capsuleA double-walled rounded dilation that ensheaths the urinary tubule and the glomerulus, which has an inner (visceral) layer, formally the capsular epithelium, and an outer (parietal) layer, formally, the glomerular epithelium. It is marked by two poles:
(1) a vascular pole, into which blood flows through the afferent arterioles into the capillary network, and from the network into the efferent arterioles; and
(2) a urinary pole, which empties into the capsule’s proximal tubule.
glo·mer·u·lar cap·sule(glō-mer'yū-lăr kap'sŭl) [TA]
The expanded beginning of a nephron composed of an inner and outer layer: the visceral layer consists of podocytes that surround a tuft of capillaries (glomerulus); the parietal layer is simple squamous epithelium which becomes cuboidal at the tubular pole.
Bowman,Sir William, English ophthalmologist, anatomist, and physiologist, 1816-1892.
Bowman capsule - the expanded beginning of a nephron. Synonym(s): glomerular capsule
Bowman disk - disk resulting from transverse segmentation of striated muscular fiber treated with weak acids, certain alkaline solutions, or freezing.
Bowman eye knife
Bowman iris needle
Bowman iris scissors
Bowman lacrimal dilator
Bowman lacrimal probe
Bowman membrane - Synonym(s): anterior limiting layer of cornea
Bowman muscle - Synonym(s): ciliary muscle
Bowman probe - a double-ended probe for the lacrimal duct.
Bowman space - the slitlike space between the visceral and parietal layers of the capsule of the renal corpuscle. Synonym(s): capsular space
Bowman strabismus scissors
Bowman theory - that urine is formed by passive filtration through the glomeruli and secretion by the epithelium of the tubules.
Malpighi,Marcello, Italian anatomist, histologist, and embryologist, 1628-1694.
malpighian bodies - small nodular masses of lymphoid tissue attached to the sides of the smaller arterial branches. Synonym(s): malpighian glands; malpighian nodules; splenic lymph follicles
malpighian capsule - Synonym(s): glomerular capsule
malpighian cell - a cell of the stratum spinosum of the epidermis.
malpighian corpuscles - Synonym(s): renal corpuscle
malpighian glands - Synonym(s): malpighian bodies
malpighian glomerulus - a tuft formed of capillary loops at the beginning of each nephric tubule in the kidney. Synonym(s): malpighian tuft
malpighian layer - Synonym(s): malpighian stratum
malpighian nodules - Synonym(s): malpighian bodies
malpighian pyramid - Synonym(s): renal pyramid
malpighian rete - Synonym(s): malpighian stratum
malpighian stigmas - the points of entrance of smaller veins into the larger veins of the spleen.
malpighian stratum - the living layer of epidermis comprising the stratum basale, stratum spinosum, and stratum granulosum. Synonym(s): malpighian layer; malpighian rete
malpighian tubules - in insects, slender tubular or hairlike excretory structures.
malpighian tuft - Synonym(s): malpighian glomerulus
malpighian vesicles - the minute air-filled vesicles on the surface of an expanded lung.
Müller,Johannes P., German anatomist, physiologist, and pathologist, 1801-1858.
Müller capsule - the expanded beginning of a nephron composed of an inner and outer layer. Synonym(s): glomerular capsule
Müller duct - either of the two paired embryonic tubes extending along the mesonephros. Synonym(s): paramesonephric duct
Müller law - each type of sensory nerve ending gives rise to its own specific sensation. Synonym(s): law of specific nerve energies
Müller maneuver - the reverse of the Valsalva maneuver.
Müller tubercle - the first evidence of the embryonic uterus and vagina. Synonym(s): sinus tubercle