caecum

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caecum

(US), cecum
Anatomy any structure or part that ends in a blind sac or pouch, esp the pouch that marks the beginning of the large intestine

caecum

[′sē·kəm]
(anatomy)
References in periodicals archive ?
The oesophagus (middle portion), stomach (anterior and posterior) and liver were cross-sectioned, whereas the pyloric caeca and intestine were sectioned longitudinally.
Those claiming caeca exist all agree they are reduced in size, relative to those of Orthoptera for example, but it remains unclear whether they are differentiated from the midgut tissue.
According to these authors, the main characteristics of Pseudempleurosoma are: two pairs of dissimilar anchors, dorsal anchor large with unpaired median connecting bar, and ventral anchor smaller with two pairs of connecting bars associated with each anchor; caeca with numerous lateral diverticula, united posteriorly; copulatory organ tubular, slender, twisted or not; accessory piece present; genital pore median and ovary pretesticular (SANTOS et al.
Dorsal-fin rays VII + I,10, no dorsal spine hidden by scales or skin; anal-fin rays II,9; first dorsal and anal rays unbranched, last dorsal and anal rays split to base; pectoral-fin rays 18; principle caudal-fin rays 9 + 8; pored lateral line scales 49 (48) (counted to end of hypural plate); scales between lateral line and dorsal fin origin 3; scales between lateral line and anal fin origin 9; branchiostegal rays 7; gill rakers 10+20 (10 + 19), lowermost gill raker of paratype rudimentary; pyloric caeca 10; vertebrae10 + 15 (Fig.
Oesophagus 69-115 long by 8-10 wide, delicate, splitting in front of acetabulum in two intestinal caeca.
So, we compared gut length (in progress), pyloric caeca number and arrangement (in progress), and biochemical activity of four digestive enzymes (pepsin, trypsin, amylase and lipase) in juvenile (40-80 mm SL) and adult (242-414 mm SL) fish collected from the Rio Puerto Viejo, a tropical rain forest stream in northeastern Costa Rica.