cervical rib

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rib

 [rib]
any of the paired bones, 12 on either side, extending from the thoracic vertebrae toward the median line on the ventral aspect of the trunk, forming the major part of the thoracic skeleton. Called also costa. See anatomic Table of Bones in the Appendices.
abdominal r's (asternal r's) false ribs.
cervical rib a supernumerary rib arising from a cervical vertebra.
false r's the five lower ribs on either side, not attached directly to the sternum.
floating r's the two lower false ribs on either side, usually without ventral attachment.
slipping rib one whose attaching cartilage is repeatedly dislocated.
true r's the seven upper ribs on either side, attached to both vertebrae and sternum.
vertebral r's floating ribs.
vertebrocostal r's the three upper false ribs on either side, attached to vertebrae and costal cartilages.
vertebrosternal r's true ribs.

cer·vi·cal rib

[MIM*117900]
[TA] a supernumerary rib articulating with a cervical vertebra, usually the seventh, but not reaching the sternum anteriorly.
See also: cervical rib syndrome.
Synonym(s): costa cervicalis [TA], costa colli [TA]

cervical rib

a supernumerary rib that articulates with a cervical vertebra, usually the seventh, but does not reach the sternum.

cervical rib

A unilateral or bilateral congenital anomaly of the 1st thoracic rib or 7th cervical rib, affecting up to 0.5–1% of the population, 15% of whom have an associated thoracic outlet syndrome due to associated neural and arterial defects. Cervical ribs range from type I, a short bar extending from the transverse process, to type IV, a complete extra rib articulating with the sternum.

cervical rib

A uni- or bilateral congenital anomaly of the 1st thoracic rib or 7th cervical rib, affecting up to 0.5–1% of the population, 15% of whom have an associated thoracic outlet syndrome–see there–due to associated neural and arterial defects; cervical ribs range from type I, a short bar extending from the transverse process to type IV, a complete extra rib articulating with the sternum.

cer·vi·cal rib

(sĕr'vi-kăl rib) [TA]
A supernumerary rib articulating with a cervical vertebra, usually the seventh, but not reaching the sternum anteriorly.
See also: cervical rib syndrome
Synonym(s): costa cervicalis [TA] .

cervical rib

A short, floating, rudimentary rib attached to the lowest neck vertebra on one or both sides. In about 10% of cases the rib causes compression of arteries or nerves in the neck, leading to pain and tingling, or sometimes more serious effects, in the arm or hand.

cervical

pertaining to the neck or to the cervix.

cervical ankylosis
ankylosis of the intervertebral joints. See also hypervitaminosis A.
cervical aplasia
segmental aplasia of the genital tract may be manifested by the absence or deformity of the cervix. Infertility is absolute. Diagnosis in large animals can be performed by rectal palpation; small animals may require surgical exploration.
cervical cirrhosis
caused by severe laceration at parturition; a rare cause of dystocia.
cervical curve
one of the vertebral curves of the body.
cervical dislocation
satisfactory method of euthanasia for laboratory mice, immature rats and poultry. Must be performed by an experienced person in order to achieve rapid and humane death.
cervical fixation
suturing of the cervix through the vaginal floor to the prepubic tendon. Used in the treatment of vaginal prolapse in cows.
cervical incompetence
damage to the cervix during parturition in the mare may cause its deformity and render it incapable of effectively closing off the uterus from the vagina. Infection of the uterus and infertility result.
incomplete cervical dilation
incomplete dilation of the cervix during parturition in adult cows, less commonly in heifers, may necessitate obstetrical, even cesarean, assistance; thought to be hormonal. See also ringwomb in ewes.
cervical inflammation
cervical instability, cervical malformation, cervical malarticulation
see canine wobbler syndrome.
cervical line lesions
of the tooth neck characterized by progressive, subgingival, osteoclastic resorption. These occur commonly in cats. See odontoclastic resorption.
cervical lymphadenitis
infection with abscessation of cervical lymph nodes in guinea pigs; usually caused by Streptococcus zooepidemicus.
cervical massage
suitable for use only in cows. The fetus is pulled up into the cervix and light traction maintained while a well-lubricated hand is pushed gently between the cervix and the fetus. This is done repeatedly and continued if there is no evidence of trauma. The cervix may dilate sufficiently to allow normal delivery of the calf.
cervical mucus
from the cervix. Its presence in liberal amounts is used as an indication of estrus.
cervical paralysis
inability to lift the head, usually accompanied by paralysis of all four limbs.
cervical plexus
see cervical plexus.
cervical rib
a supernumerary rib arising from a cervical vertebra.
cervical spinal cord lesion
includes fracture-dislocation, cervical vertebral abscess, compression due to exostosis, spinal myelitis and myelacia, congenital lesions including spinal canal stenosis.
cervical spine
cervical vertebrae.
cervical spondylolisthesis, spondylopathy
see canine wobbler syndrome.
cervical spondylosis
see cervical ankylosis (above).
cervical static stenosis
one of the two syndromes listed under cervical vertebral stenotic myelopathy; characterized by compression of the cord at C5 to C7 in large male horses 1-4 years of age; the position of the neck is immaterial; the resulting syndrome is characterized by an insidious onset of ataxia. See also enzootic equine incoordination.
cervical stenotic myelopathy
focal myelopathy caused by compression of the spinal cord by excessive flexion of the neck in patients, especially dogs, in which there is a pre-existing narrowing of one of the two vertebral foramina in one or more vertebrae, especially cervical vertebrae. See also degenerative myeloencephalopathy.
cervical swab
swab of the os cervix for bacterial and virological examination for pathogens likely to affect fertility adversely. Used in fertility examination of cases of prolonged infertility in ruminants. See also uterine swab.
cervical syndrome
clinical signs caused by a lesion of the spinal cord between C1 and C5. They include tetraparesis to tetraplegia or hemiparesis to hemiplegia, hyperreflexia, hypertonia, depressed postural responses and sometimes cervical pain.
cervical trauma
most common are lacerations during parturition; resulting adhesions and fibrosis may cause subsequent dystocia.
cervical vertebrae
the skeleton of the neck, in most mammals comprising seven vertebrae, in birds up to 25.
cervical vertebra fracture
in horses occurs as a result of head-on collisions at speed; causes recumbency and inability to move limbs voluntarily, but there is full consciousness and patient can eat and drink if assisted.
cervical vertebral malformation malarticulation syndrome
cervical vertebral stenotic myelopathy
one of the causes of incoordination in young horses. See also enzootic equine incoordination.

rib

any one of the paired, curved, cylindrical bones, extending from the thoracic vertebrae to the ventral aspect of the trunk, forming the major part of the thoracic skeleton, and consisting of a dorsal bony part and a ventral cartilaginous part that may or may not articulate with the sternum. Typically 13 pairs in the dog, cat and ruminants, 18 pairs in horses and 14 or 15 pairs in the pig. Called also costa. See Table 10.

abdominal r's, asternal r's
a rib whose ventral end does not meet the sternum. See also false ribs (below).
cervical rib
a supernumerary rib arising from a cervical vertebra.
rib contractor
a strongly built device for pulling ribs together following retraction for surgical access to the thoracic cavity.
false r's
the caudal ribs, not attached directly to the sternum but are attached to each other's sternal cartilage to form the costal arch.
floating rib
a rib whose distal extremity is unattached to an adjacent rib or the sternum.
rib retractor
heavy duty surgical instrument for separating ribs to allow surgeon better access to thoracic contents. See finochietto rib spreader.
slipping rib
one whose attaching cartilage is repeatedly dislocated.
sternal rib
true ribs articulating with the sternum.
true r's
the ribs attached to both vertebrae and sternum.
vertebral r's
floating ribs.
vertebrocostal r's
the false ribs that contribute to the costal arch.
vertebrosternal r's
true ribs.