inguinal ring

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inguinal ring

either of the two apertures of the inguinal canal, the internal end opening into the abdominal wall and the external end opening into the aponeurosis of the obliquus externus abdominis above the pubis.

inguinal ring, external

superficial inguinal ring.

inguinal ring, internal

deep inguinal ring.

inguinal ring

(1) Superficial inguinal ring; anulus inguinalis superficialis [NA6]. 
(2) Deep inguinal ring; anulus inguinalis profundus [NA6].

inguinal ring

The interior opening of the abdominal inguinal ringand the end of the subcutaneous inguinal ring.
See also: ring


pertaining to the groin.

inguinal abscess
characterized by a history of prior castration and a syndrome of unilateral edema, pain and swelling in the inguinal region, possibly confirmable by rectal palpation.
inguinal canal
the oblique passage in the ventral abdominal wall, through which passes the round ligament of the uterus in the female, and the spermatic cord in the male.
inguinal hernia
hernia occurring in the groin, or inguen, where the abdominal folds of flesh meet the thighs. Protrusion of intestine, omentum and occasionally a gravid uterus, either directly through a weak point in the abdominal wall (direct inguinal hernia) or downward into the inguinal canal (indirect inguinal hernia; called also scrotal hernia in the male). A serious complication is incarceration with or without strangulation of the herniated viscus. Most commonly seen in bitches; occasionally a heritable trait in dogs and may be inherited in pigs and cattle.
inguinal ring
there are two rings, one at the entrance and one at the exit of the inguinal canal. See also ring.
inguinal strangulation
see inguinal hernia.


1. any annular or circular organ, structure or area.
2. in chemistry, a collection of atoms united in a continuous or closed chain.

abdominal ring (external)
an opening in the aponeurosis of the external oblique muscle for the spermatic cord or round ligament. Called also external inguinal ring.
abdominal ring (internal)
an aperture in the transverse fascia for the spermatic cord or round ligament. Called also internal inguinal ring.
Bandl's ring
ring cell
an immature granulocyte, intermediate between the myelocyte and metamyelocyte, found in the bone marrow of rats. There is a 'hole' in the nucleus.
ciliary ring
the posterior part of the ciliary body of the eye, a continuation of the choroid.
conjunctival ring
a ring at the junction of the conjunctiva and cornea.
constriction ring
a contracted area of the uterus, where the resistance of the uterine contents is slight, as over a depression in the contour of the fetus, or below the presenting part.
deep inguinal ring
an aperture in the transverse fascia for the spermatic cord or the round ligament.
docking ring
femoral ring
the abdominal opening of the femoral canal through which the femoral nerve and blood vessels pass from the peritoneal cavity to the limb.
inguinal ring
see abdominal ring (above).
pancreatic ring
the ring in the pancreas that accommodates the portal vein.
ring precipitin test
see precipitin reaction.
preputial ring
the rim of the external orifice of the prepuce proper, the internal prepuce, on the penis of the horse.
retraction ring
the demarcation between the upper, contracting portion of the uterus in normal parturition and the lower, dilating part.
retraction ring (pathological)
a complication of prolonged labor marked by failure of relaxation of the circular fibers at the internal opening of the cervix, obstructing delivery of the fetus.
Schwalbe's ring
see schwalbe's ring.
scleral ring
stallion ring
a rubber ring fitted over the glans penis of the stallion which discourages erection and masturbation.
superficial inguinal ring
a fissure-like opening in the aponeurosis of the external abdominal oblique muscle for the spermatic cord or the round ligament.
ring test
tympanic ring
the bony ring forming part of the temporal bone at birth and developing into the tympanic plate.
umbilical ring
the orifice in the abdominal wall of the fetus for transmission of the umbilical vein and arteries.
ring vaccination
vaccination of all animals in a zone around an area in which the subject disease occurs. A preventive strategy that contains the infected population so that the eradication team has a finite target.
vascular ring
any of a number of congenital anomalies of the aortic arch and its branches, the vessels forming a ring about the trachea and esophagus that cause varying degrees of compression, vomiting and esophageal dilatation. See also persistent right aortic arch.
References in periodicals archive ?
In one patient with recurrent inguinal hernia after 'plug free' PHS hernioplasty, in reoperation we found enlargement of internal inguinal ring, which was not covered by onlay patch.
Caption: Figure 1: Testis with viable vas deferens noted just proximal to the right internal inguinal ring.
In our study, when a PPV was noted, it was closed through a crease incision, and a 2-0 suture was placed in the lower half of the internal inguinal ring using a specially devised needle.
Low transscrotal orchidopexy is a safe and effective approach for undescended testes distal to the external inguinal ring.
The IEA originates from the external iliac artery and lies immediately medial to the deep inguinal ring (Figure 1).
The tip of the appendix was in the hernial sac, projecting about 3 cm through the internal inguinal ring.
In the final step, a rolled polypropylene mesh 12x15 cm side was inserted through the 10mm port and, with the use of graspers, the mesh was placed horizontally, covering the inguinal wall from the midline of the pubis and lateral to the deep inguinal ring.
1: Tubulo-muscular structure shown to the right of the spermatic cord originating from the internal inguinal ring.
The hernial ring was enlarged (Kelotomy) by incising through the inguinal ring in a craniomedial direction.
The ectopic testis may be located at the deep inguinal ring, inguinal canal or in contralateral hemiscortum.
The inguinal hernia may be indirect if passing through the deep inguinal ring or direct, resulting from weakness in the transversalis fascia in the posterior wall of the inguinal canal.