Janjeerka ama qalooca xubin kamid ah jirka, mid caafimaad qabta oo lagu yaqaan qaloocaas sida ilmo-galeenka ama mid jiranba.
Waa marka xubin jirka ka mid ahi ay hore ugu foorarto ama hore ugu leexato marka loo eego booskeeda caadiga ah. Waxaa badanaa lagu tilmaamaa Ilmo-galeenka (uterus) ama qoorta lafta bowdada (femoral neck).