FI ELDS H-1 and H-2 

 Columns 29, 30, 31, 

 32, 33, and 34 



61 Buccal cavity (oral cavity; ostium; mouth [cavity]; osculum; cytostome; stomodeum). 



(This symbol is not used for oral orifices, but describes oral cavities and the walls 

 and structures thereof. ) 



611 Ups 



612 Palate 



613 Tongue 



614 Membranelle; manubrium; velum; oral lobe; hypostome; labium 



615 Proboscis; prostomium 



616 Mandible; jaw (describing a mount or head area). (Do not use this symbol for the 



vertebrate mandibular bone, Symbol 924. ) 



617 Labrum; chelicera 



618 Maxilla; maxilliped; pedipalp. (Do not use this symbol for vertebrate maxillary bone. 



Symbol 925. ) 



922 Teeth 



619 Cheek (lateral wall of buccal cavity) 

 61A Gums 



61B Salivary pump 



62 Pharynx 



621 Mastax (rotifers) 



622 Endostyle (tunicates) 



63 Esophagus (= gullet) 



64 Crop; honey stomach 



65 Gizzard; proventriculus 



66 Stomach; ventriculus; enteron of coelenterates 



661 Cardiac sphincter 



662 Cardia (including cardiac sac of the rat) 



663 Fundus 



664 Pylorus 



665 Pyloric sphincter 



666 Gastric mill 



67 Intestine 



671 Small intestine 



672 Duodenum 



673 Jejunum 



674 Ileum 



675 Anterior intestine 



676 Posterior intestine 



677 Large intestine; colon 



678 Cecum 



679 Appendix 



67A Rectum; proctodeum 



67 B Anus 



67C Anal sphincter 



67D Cloaca 



68 Peritoneum. (Use Symbol B7 1 for peritoneal cavity. ) 



681 Mesentery (visceral peritoneum) 



682 Parietal peritoneum 

 7 Excretory system 



71 Kidney. (For invertebrate excretory structures, use other symbols of the 7-- series.) 



711 Cortex of kidney 



712 Medulla of kidney 



713 Pelvis of kidney 



714 Malpighian corpuscle (Bowman's capsule and glomerulus) 

 321 Renal portal vessel or system 



715 Renal tubule 



716 Proximal convoluted tubule 



717 Loop of Henle 



718 Distal convoluted tubule 



719 Collecting tubule and duct of Bellini 



72 Ureter 



103 



