body (bod´e)
Ciliary body
ciliary body
1. the largest and most important part of any organ.
2. any mass or collection of material.
3. trunk (1).
acetone bodies ketone bodies.
amygdaloid body corpus amygdaloideum.
anococcygeal body see under ligament.
aortic bodies small neurovascular structures on either side of the aorta in the region of the aortic arch, containing chemoreceptors that play a role in reflex regulation of respiration.
bodies of Arantius small tubercles, one at the center of the free margin of each of the three cusps of the aortic and pulmonary valves.
asbestos bodies ferruginous bodies whose center is asbestos.
Aschoff bodies submiliary collections of cells and leukocytes in the interstitial tissues of the heart in rheumatic myocarditis.
asteroid body an irregularly star-shaped inclusion body found in the giant cells in sarcoidosis and other diseases.
Auer bodies finely granular, lamellar bodies having acid-phosphatase activity, found in the cytoplasm of myeloblasts, myelocytes, monoblasts, and granular histiocytes, rarely in plasma cells, and virtually pathognomonic of leukemia.
Barr body sex chromatin.
basal body a modified centriole that occurs at the base of a flagellum or cilium.
Cabot's ring bodies lines in the form of loops or figures-of-8, seen in stained erythrocytes in severe anemias.
carotid body a small neurovascular structure lying in the bifurcation of the right and left carotid arteries, containing chemoreceptors that monitor oxygen content in blood and help to regulate respiration. 
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Carotid body, located deep to the carotid bifurcation and innervated by a plexus of glossopharyngeal, vagal, and sympathetic components.
cavernous body of penis corpus cavernosum penis.
ciliary body the thickened part of the vascular tunic of the eye, connecting the choroid and iris.
Cowdry type I inclusion bodies eosinophilic nuclear inclusions of nucleic acid and protein seen in cells infected with herpes simplex or varicella-zoster virus.
Döhle's inclusion bodies small bodies seen in the cytoplasm of neutrophils in many infectious diseases, burns, aplastic anemia, and other disorders, and after the administration of toxic agents.
Donovan's body an encapsulated bacterium, Calymmatobacterium granulomatis, found in lesions of granuloma inguinale.
embryoid bodies structures resembling embryos, seen in several types of germ cell tumors.
ferruginous bodies small masses of mineral matter in the lungs resulting from deposition of calcium salts, iron salts, and protein around a central core of foreign matter.
fruiting body a specialized structure, as an apothecium, which produces spores.
geniculate body, lateral an eminence of the metathalamus, just lateral to the medial geniculate body, marking the end of the optic tract.
geniculate body, medial an eminence of the metathalamus, just lateral to the superior colliculi, concerned with hearing.
Golgi body see under complex.
Heinz bodies , Heinz-Ehrlich bodies inclusion bodies resulting from oxidative injury to and precipitation of hemoglobin; seen in the presence of certain abnormal hemoglobins and erythrocytes with enzyme deficiencies.
hematoxylin body a dense, homogeneous particle consisting of the denatured nuclear material of an injured cell, occurring in systemic lupus erythematosus; lymphocytes that ingest such particles are known as LE cells. Called also LE b.
hyaloid body vitreous b.
immune body antibody.
inclusion bodies round, oval, or irregular-shaped bodies in the cytoplasm and nuclei of cells, as in disease due to viral infection, such as rabies, smallpox, etc.
ketone bodies the substances acetone, acetoacetic acid, and β-hydroxybutyric acid; except for acetone (which may arise spontaneously from acetoacetic acid), they are normal metabolic products of lipid within the liver, and are oxidized by muscles; excessive production leads to urinary secretion of these bodies, as in diabetes mellitus.
lamellar body keratinosome.
LE body hematoxylin b.
Leishman-Donovan body amastigote.
mammillary body either of the pair of small spherical masses in the interpeduncular fossa of the midbrain, forming part of the hypothalamus.
Masson bodies cellular tissue that fills the pulmonary alveoli and alveolar ducts in rheumatic pneumonia; they may be modified Aschoff bodies.
metachromatic bodies see under granule.
Negri bodies round or oval inclusion bodies seen in the cytoplasm and sometimes in the processes of neurons of rabid animals after death.
Nissl bodies large granular basophilic bodies found in the cytoplasm of neurons, composed of rough endoplasmic reticulum and free polyribosomes.
olivary body olive (2).
pacchionian bodies arachnoidal granulations.
para-aortic bodies enclaves of chromaffin cells near the sympathetic ganglia along the abdominal aorta, serving as chemoreceptors responsive to oxygen, carbon dioxide, and hydrogen ion concentration and which help control respiration.
pineal body a small conical structure attached by a stalk to the posterior wall of the third ventricle; it secretes melatonin. Called also epiphysis cerebri and pineal gland.
pituitary body hypophysis.
polar bodies
1. small nonfunctional cells consisting of a tiny bit of cytoplasm and a nucleus, resulting from unequal division of the primary oocyte (first polar b.) and, if fertilization occurs, of the secondary oocyte (second polar b.) .
2. metachromatic granules located at the ends of bacteria.
psammoma body a spherical, concentrically laminated mass of calcareous material, usually of microscopic size; such bodies occur in both benign and malignant epithelial and connective-tissue tumors, and are sometimes associated with chronic inflammation.
quadrigeminal bodies corpora quadrigemina.
Russell bodies globular plasma cell inclusions, representing aggregates of immunoglobulins synthesized by the cell.
sand bodies the mass of gritty matter lying in or near the pineal body, the choroid plexus, and other parts of the brain.
body of sternum the principal portion of the sternum, located between the manubrium above and the xiphoid process below.
trachoma bodies inclusion bodies found in clusters in the cytoplasm of the epithelial cells of the conjunctiva in trachoma.
tympanic body an ovoid body in the upper part of the superior bulb of the internal jugular vein, believed similar to the carotid body in structure and function.
vermiform bodies peculiar sinuous invaginations of the plasma membrane of Kupffer cells of the liver.
vitreous body the transparent gel filling the inner portion of the eyeball between the lens and retina.
Weibel-Palade bodies rod-shaped intracytoplasmic bundles of microtubules specific for vascular endothelial cells and used as markers for endothelial cell neoplasms.
| ciliary body n. A thickened portion of the vascular tunic of the eye located between the choroid and the iris. |
Ciliary body
A structure in the eye that contains muscles that will affect the focusing of the lens.
ciliary body
Etymology: L, cilia
the thickened part of the vascular tunic of the eye that joins the iris with the anterior portion of the choroid. It is composed of the ciliary crown, ciliary processes and folds, ciliary orbiculus, ciliary muscle, and a basal lamina.
ciliary
pertaining to or resembling cilia; used particulary in reference to certain eye structures, such as the ciliary body or muscles.
ciliary adenomas
arise from the non-pigmented inner layer of the ciliary epithelium; cause hyphema or glaucoma.
ciliary body
the thickened part of the vascular tunic of the eye, connecting choroid and iris, made up of the ciliary muscle and the ciliary processes. The processes radiate from the ciliary muscle and give attachments to ligaments supporting the lens of the eye.
ciliary body inflammation
see cyclitis.
ciliary epithelium
rostral continuation of the pars ciliaris retinae; non-pigmented, non-neural cells.
ciliary flush
dilation of deep conjunctival vessels and episcleral vessels causing perilimbal redness.
ciliary glands
sweat glands which have become arrested in their development, situated at the edge of the eyelids. Called also Moll's glands.
ciliary inflammation
cyclitis.
ciliary injection
peripheral hyperemia of the anterior ciliary vessels which produces a deep red or rose color of the corneal stroma, and must be distinguished from hyperemia of the conjunctival vessels. May spread to the perilimbic corneal tissue. Called also ciliary flush.
ciliary muscle
the smooth (mammals) or striated (birds) muscle that forms the main part of the ciliary body and and functions in accommodation of the eye.
primary ciliary dyskinesia
abnormality of ciliary function leading to diseases of respiratory and reproductive tracts including sinusitis and bronchiectasis. May be associated with cardiac displacement. See also kartagener's syndrome.
ciliary process
folded structures on the posterior aspect of the ciliary body. 
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Anatomy of the ciliary processes. By permission from Guyton R, Hall JE, Textbook of Medical Physiology, Saunders, 2000
ciliary reflex
movements of the pupil in accommodation.
ciliary zonules
continuations of the ciliary processes of the ciliary body connecting it to the lens. They are in close contact with the hyaloid membrane of the vitreous body.
ciliary body
Part of the uvea, anterior to the ora serrata and extending to the root of the iris where it is attached to the scleral spur. It comprises the ciliary muscle and the ciliary processes and is roughly triangular in sagittal section. The whole ciliary body forms a ring. The part just beyond the ora serrata is smooth and is thus known as pars plana (orbiculus ciliaris). Anterior to this lies a region of ridges, which are the ciliary processes; this region is called the pars plicata (corona ciliaris). From the sclera inward the ciliary body consists of: the supraciliaris (supraciliary layers) which is made up of strands of collagen containing melanocytes and fibroblasts; the ciliary stroma which contains blood vessels, melanocytes and the ciliary muscle; and the ciliary epithelium which comprises an inner non-pigmented layer and an outer pigmented layer and is a continuation of the internal limiting membrane of the retina and of the retinal pigment epithelium, respectively. The cells of these layers (particularly those of the non-pigmented layer) appear to be actively engaged in ion and water transport and the production of aqueous humour. See angle recession; cyclitis; iridodialysis; supraciliary space; stria; ultrafiltration.
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