ischiorectal fossa

(redirected from Ischiorectal fossae)

fossa

 [fos´ah] (pl. fos´sae) (L.)
a trench or channel; in anatomy, a hollow or depressed area.
amygdaloid fossa the depression in which the tonsil is lodged.
cerebral fossa any of the depressions on the floor of the cranial cavity.
condylar fossa (condyloid fossa) either of two pits on the lateral portion of the occipital bone.
coronoid fossa a depression in the humerus for the coronoid process of the ulna.
cranial fossa any one of the three hollows (anterior, middle, and posterior) in the base of the cranium for the lobes of the brain.
digastric fossa a depression on the inner surface of the mandible, giving attachment to the anterior belly of the digastric muscle.
epigastric fossa
1. one in the epigastric region.
ethmoid fossa the groove in the cribriform plate of the ethmoid bones, for the olfactory bulb.
glenoid fossa mandibular fossa.
hyaloid fossa a depression in the front of the vitreous body, lodging the lens.
hypophyseal fossa a depression in the sphenoid lodging the pituitary gland; called also pituitary fossa.
iliac fossa a concave area occupying much of the inner surface of the ala of the ilium, especially anteriorly; from it arises the iliac muscle.
incisive fossa a slight depression on the anterior surface of the maxilla above the incisor teeth.
infraclavicular fossa the triangular region of the chest just below the clavicle, between the deltoid and pectoralis major muscles.
infratemporal fossa an irregularly shaped cavity medial or deep to the zygomatic arch.
interpeduncular fossa a depression on the inferior surface of the midbrain, between the two cerebral peduncles, the floor of which is the posterior perforated substance.
ischiorectal fossa a potential space between the pelvic diaphragm and the skin below it; an anterior recess extends a variable distance.
mandibular fossa a depression in the inferior surface of the pars squamosa of the temporal bone at the base of the zygomatic process, in which the condyle of the mandible rests; called also glenoid fossa.
mastoid fossa a small triangular area between the posterior wall of the external acoustic meatus and the posterior root of the zygomatic process of the temporal bone.
nasal fossa the portion of the nasal cavity anterior to the middle meatus.
navicular fossa
1. the lateral expansion of the urethra of the glans penis.
2. a depression on the internal pterygoid process of the sphenoid, giving attachment to the tensor veli palatini muscle.
fossa ova´lis cor´dis a fossa in the right atrium of the heart; the remains of the fetal foramen ovale.
fossa ova´lis fe´moris the depression in the fascia lata that is bridged by the cribriform fascia and perforated by the great saphenous vein.
ovarian fossa a shallow pouch on the posterior surface of the broad ligament of the uterus in which the ovary is located.
paravesical fossa the fossa formed by the peritoneum on each side of the urinary bladder.
pituitary fossa hypophyseal fossa.
popliteal fossa the hollow at the posterior part of the knee.
subarcuate fossa a depression in the posterior inner surface of the pars petrosa of the temporal bone.
subpyramidal fossa a depression on the internal wall of the middle ear.
subsigmoid fossa a fossa between the mesentery of the sigmoid flexure and that of the descending colon.
supraspinous fossa a depression above the spine of the scapula.
temporal fossa an area on the side of the cranium bounded posteriorly and superiorly by the temporal lines, anteriorly by the frontal and zygomatic bones, and laterally by the zygomatic arch, lodging the temporal muscle.
tibiofemoral fossa a space between the articular surfaces of the tibia and femur mesial or lateral to the inferior pole of the patella.
urachal fossa one on the inner abdominal wall, between the urachus and the hypogastric artery.
vestibular fossa (fossa of vestibule of vagina) the vaginal vestibule between the vaginal orifice and the fourchette (frenulum of pudendal labia). Called also navicular fossa.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

is·chi·o·a·nal fos·sa

[TA]
a wedge-shaped space with its base toward the perineum and lying between the tuberosity of the ischium and the obturator internus muscle laterally and the external anal sphincter and the levator ani muscle medially.
Farlex Partner Medical Dictionary © Farlex 2012

Velpeau,

Alfred A.L.M., French surgeon, 1795-1867.
Velpeau axillary lateral view
Velpeau axillary radiograph
Velpeau bandage - serves to immobilize arm to chest wall, with the forearm positioned obliquely across and upward on front of chest.
Velpeau canal - passage through the layers of the lower abdominal wall that transmits the spermatic cord in the male and the round ligament in the female. Synonym(s): inguinal canal
Velpeau cast
Velpeau deformity
Velpeau dressing
Velpeau fossa - a wedge-shaped space with its base toward the perineum. Synonym(s): ischiorectal fossa
Velpeau hernia - femoral hernia in which the intestine is in front of the blood vessels.
Velpeau shoulder immobilizer
Velpeau sling
Velpeau stockinette
Velpeau tendon transfer
Velpeau wrap
Medical Eponyms © Farlex 2012
References in periodicals archive ?
However, examination of the clinical anatomy of the perineum revealed that the deep, fat filled, ischiorectal fossae lie between the perineal skin and these muscles.
External palpation of the levator ani musculature is confounded by the overlying fat filled ischiorectal fossae.
Before considering the detailed anatomy of the ischiorectal fossae one needs an appreciation of the regional anatomy, namely the perineum.
The external genitalia and the urogenital diaphragm are found within the urogenital triangle, while the anal triangle is composed of the centrally placed anal canal encircled by the external anal sphincter and flanked laterally and posteriorly by the ischiorectal fossae (Figure 3).
The ischiorectal fossae are fascia-lined wedge shaped spaces found on either side of the anal canal and rectum.
Posteriorly the ischiorectal fossae extends below the lower edge of gluteus maximus as far as the sacrotuberous ligament (Figure 4).
The ischiorectal fossae are filled with adipose tissue that is infiltrated with numerous tough, fibrous bands and septa, some of which are derived from the longitudinal muscle of the anal canal (Figure 4).