ovarian bursa(redirected from bursa ovarica)
the peritoneal recess between the medial aspect of the ovary and the mesosalpinx.
Synonym(s): bursa ovarica
pl. bursae,bursas [L.] a small fluid-filled sac or saclike cavity situated in places in tissues where friction would otherwise occur.
Bursae function to facilitate the gliding of skin, muscles or tendons over bony or ligamentous surfaces. They are numerous and are found throughout the body; the most important are located at the shoulder, elbow, knee and hip. Inflammation of a bursa is known as bursitis. See also bursal.
lies between the ligamentum nuchae and the dorsal arch of the atlas. Called also cranial nuchal subligamental bursa.
under the ligamentum nuchae and over the axis. Called also the caudal nuchal subligamental bursa.
intertuberal bursa. See bicipital bursa.
large bursa on the summit of the calcaneus where the superficial digital flexor muscle tendon is partly inserted as it passes distally to the foot; in the horse there may be an additional small subcutaneous bursa over the tendon at this site; its inflammation causes 'capped hock'.
bursa of Fabricius.
embraces the female nematode during copulation; the structure is useful for the identification of some species of nematodes.
cranial nuchal subligamental bursa
see nuchal bursa (below).
see B lymphocyte.
bursa equivalent tissue
an unidentified component of the lymphoid system, analogous to the bursa of Fabricius in birds, which is considered to be the primary site of the origin of B lymphocytes.
bursa of Fabricius
an epithelial outgrowth of the cloaca in birds, which develops in a manner similar to that of the thymus, atrophying after 5 or 6 months and persisting as a fibrous remnant in sexually mature birds. It contains lymphoid follicles, and before involution is a site of formation of B lymphocytes associated with humoral or antibody immunity.
May be very large in young chickens and compress the cloaca dorsally. It opens into the proctodeum, the most caudal of the three chambers of the cloaca.
a small, serous membrane lined pouch ventral to the aorta and to the right of the esophagus and within the caudal mediastinum.
a bursa beneath the superficial tendon of the infraspinatus muscle as it crosses the greater tubercle of the humerus.
lies between the tendon of the biceps brachialis muscle and the brachial groove of the humerus. Called also bicipital bursa.
a bursa over the intertubercular groove of the humerus and beneath the tendon of the biceps brachii muscle, in horses and cattle.
bursa mucosa, synovial bursa
a closed synovial sac interposed between surfaces that glide upon each other; it may be subcutaneous, submuscular, subfascial or subtendinous in location.
lies between the navicular bone and the deep digital flexor muscle. Called also bursa podotrochlearis manus/pes.
a bursa above the dorsal arch of the atlas and beneath the funicular part of the ligamentum nuchae.
the potential cavity contained within the greater omentum. It communicates with the rest of the peritoneal cavity through the epiploic foramen (of Winslow).
see ovarian bursa.
bursa podotrochlearis manus
see navicular bursa (above).
bursae which develop in subcutaneous sites over any bony prominence, e.g. coxal tuber, olecranon.
between the funicular and lamellar parts of the ligamentum nuchae and over the spine of the second thoracic vertebra of horses.
see bursa mucosa (above).
the space between the body of the epididymis and the testis created by the partly free body of the epididymis relative to its close attachment to the testis.
beneath the tendon of the triceps brachii muscle as it passes over the summit of the olecranon. Called also tricipital bursa.
see triceps bursa (above).
over the greater trochanter between the tendon of the accessory gluteal muscle and the trochanteric cartilage.
pertaining to an ovary.
one or both ovaries absent; usually accompanies defects of the tubular reproductive organs.
includes ovarian dysgenesis (see below), agenesis (above) or hypoplasia, as in Swedish Highland cattle.
a pouch formed by the mesosalpinx and the mesovarium that encloses the infundibulum of the uterine tube and the ovary. It is shallow in the mare and does not enclose the ovary. It is capacious in sows and deep with a fat-filled wall in the bitch.
inlammation of the ovarian bursa; likely to affect the function of the ovary and ovulation.
the cycle of follicle maturation and rupture, then luteinization and regression of the corpus luteum followed by recommencement of the cycle, unless pregnancy intervenes.
the regular appearance of estrus as an indication of the regular occurrence of estrous cycles.
see cystic ovarian disease (below).
cystic ovarian degeneration
persistent cysts derived from ovarian follicles which do not ovulate. Follicular cysts are thin-walled and fluctuant, and often multiple. Luteal cysts have a thick wall of luteal tissue about the cyst, are firm to palpate and do not rupture easily. There is abnormal estral behavior, either anestrus or nymphomania, and diminished fertility.
Cystic corpora lutea form after ovulation has occurred and do not interfere with reproduction. They have a characteristic ovulation papilla.
cystic ovarian disease
common disease of cows, less common in sows, characterized by gross abnormalities of estrus, either anestrus or more frequent and prolonged. In cows the cysts can be palpated per rectum.
small, inactive ovaries lacking germ cells such as occur in mares lacking a second X chromosome.
see ovarian follicle.
follicular ovarian cyst
see cystic follicle.
functional hypoplasia in immature females and undernourished females of all ages are common findings; in the absence of these risk factors hypoplasia is genetic in origin in Swedish Highland and possibly white Ayrshire cattle.
an alternative name of endocrine dermatoses caused by abnormalities of ovarian function in bitches. Type I, associated with cystic ovaries or functional ovarian tumors, consists of a bilaterally symmetrical alopecia, gynecomastia, enlargement of the vulva, and abnormalities of the estrous cycle. Type II is a bilaterally symmetrical alopecia, sometimes with seborrhea, in spayed bitches. It is responsive to treatment with estrogen. Called also estrogen-responsive dermatosis.
intrafollicular ovarian hemorrhage
hemorrhage into an ovarian follicle occurs in all species during ovulation; also rarely in anovulatory follicles.
luteal ovarian cyst
see luteal cyst.
luteinized ovarian cyst
see luteal cyst.
includes mostly granulosa cell tumors, but also rarely carcinomas, fibromas, thecomas, sarcomas.
a rare cause of colic in mares; identifiable by eliciting pain by rectal palpation of ovary.
premature ovarian failure
defective differentiation of ovarian tissue and the patient shows no signs of pubertal estrus until long past the customary age.
return of cyclical ovarian activity after a period of inactivity, usually pregnancy and parturition.
ovarian remnant syndrome
the return of estral activity in a desexed female; due to failure to remove all of the ovarian tissue or to dropping, and allowing to implant, a piece of the ovary.
rete ovarii ovarian cyst
a convoluted system of epithelial cell cords and tubules occupying part of the ovarian medulla; the cysts are found mostly in the hilar region of the ovary.
ovarian serous inclusion cyst
similar in size and appearance to, but distinguishable from, ovarian cysts by their intraovarian position; lined by cuboidal epithelium thought to be pinched off from indentations of surface epithelium.
tubular epithelial ovarian cyst
formed from epithelial cells from the surface of the ovary.