====== CAECUM ======

      * Ileal papilla
      * Ileal orifice; orifice of ileal papilla
      * Frenulum of ileal orifice
      * Ileocolic lip; superior lip
      * Ileocaecal lip; inferior lip
      * Appendix; vermiform appendix
        * Orifice of vermiform appendix
        * Aggregated lymphoid nodules [[Peyeri]]
      * (Precaecocolic fascia)


* 1 caecum
      * 1.1	dimensions
         * 1.1.1	6 cm long and 7.5 cm broad
      * 1.2	relations
         * 1.2.1	anterior
         * 1.2.2	posterior
           * muscles
             * right psoas
             * iliacus
           * nerves
             * genitofemoral
             * femoral
             * lateral cutaneous nerve of thigh
           * vessels
             * testicular or ovarian
      * 1.3	vessels and nerves
         * 1.3.1	ileocolic artery
         * 1.3.2	T11 to L1 nerve suppply
      * 1.4	ileocecal valve
         * 1.4.1	structure
             * 2 lips
                * upper lip is horizontal
                * lower lip is longer and concave
             * 2 frenula
                * left or anterior
                * right or posterior
         * 1.4.2	control and mechanism
              * closed by sympathetic nerves
              * Closes ileocaecal spinchter
              * mechanically closed by distension of caecum
         * 1.4.3	functions
         * 1.4.4	features
       * 1.5	features
         * 1.5.1	large blind sac
         * 1.5.2	situated in right iliac fossa