Biology · Structural Organisation in Animals · NEET
Both, but for NEET matching, pair Crypts of Lieberkuhn with the SMALL INTESTINE as a whole. They are tubular glands (intestinal glands) that open at the base of the villi all along the small intestine. In a match-list question where duodenum is a separate option, that option is reserved for Brunner's glands. So: Crypts to small intestine, Brunner's to duodenum.
Both are glands of the small intestine but they differ in place and layer. Crypts of Lieberkuhn lie in the MUCOSA and are found all along the small intestine. Brunner's glands lie in the SUBMUCOSA and are found ONLY in the duodenum. Simple line: Crypts are mucosal and everywhere in the small intestine; Brunner's are submucosal and duodenum-only.
Glisson's capsule is the thin connective-tissue sheath that covers the LIVER and wraps the vessels entering it. It is a connective-tissue structure, not a gland. In NEET match lists, always send Glisson's capsule to the liver.
In the PANCREAS. The islets are small clusters of endocrine cells scattered in the pancreas; the alpha-cells make glucagon and the beta-cells make insulin. The rest of the pancreas is exocrine (digestive enzymes), so the pancreas is a composite (both endocrine and exocrine) gland.
Because they show the organ level of organisation: the four basic tissues are arranged in a set pattern to build organs, and inside each organ special tissues sit in fixed places. A crypt, a gland, a capsule or an islet is a localised tissue arrangement WITHIN an organ - it is one step above tissue level and one step below organ-system level.
Match the following structures with their respective location in organs. List I: A. Crypts of Lieberkuhn B. Glisson's Capsule C. Islets of Langerhans D. Brunner's Glands List II: I. Pancreas II. Duodenum III. Small intestine IV. Liver Select the correct option:
Try the real previous-year questions from this chapter — each with the answer and a full solution.
Endocrine. The islets secrete hormones (insulin, glucagon) directly into blood. The surrounding pancreatic tissue is exocrine, so the whole pancreas is a composite gland.
No. Glisson's capsule is a connective-tissue covering of the liver, not a secretory gland. That is a common trap - three of these four are glandular, but Glisson's is a capsule.
Three: Crypts of Lieberkuhn (small intestine), Brunner's glands (duodenum) and Glisson's capsule (liver) all relate to the alimentary canal and its associated organs. The Islets of Langerhans belong to the endocrine part of the pancreas.
Fix four pairs: Crypts-small intestine, Brunner's-duodenum, Glisson's-liver, Islets-pancreas. Then remember the one reversal trap between Crypts and Brunner's (whole intestine vs duodenum only).
