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🔬 Biology  ·  Structural Organisation in Animals  ·  NEET

Digestion in the cockroach gut is aided by six to eight blind tubular outgrowths at the junction of the foregut and midgut called:

Answer: Gastric caeca.

  • A Malpighian tubules
  • B Hepatic caeca
  • C Gastric caeca
  • D Salivary glands

Correct answer: C. Gastric caeca

Explanation: The hepatic or gastric caeca are blind ring of tubules arising at the junction of the foregut and midgut that secrete digestive juice in the cockroach.

Four Basic Animal Tissue TypesEpithelialcovering/liningsquamous, cuboidal,columnarprotection,secretionConnectivecells in matrixareolar, adipose,cartilage, bone, bloodsupport,transportMuscularcontractile fibresskeletal, smooth,cardiacmovement,contractionNeuralneurons + neurogliaexcitable, conductsimpulsessignaltransmissionAll four tissue types combine to form organs; organs combine to form organ systems

The four basic animal tissue types and their core functions: epithelial (covering/lining), connective (support and transport), muscular (movement), and neural (signal conduction).

Concept context

The four basic animal tissue types (epithelial, connective, muscular, neural) and the cockroach as a model organism for organ-system level organisation.

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