2022 Phase 2 Structural Organisation in AnimalsMuscle tissue Easy Question 27 of 92 in Structural Organisation in Animals

Choose the correct statement about a muscular tissue:

A Smooth muscles are multinucleated and involuntary.
B Skeletal muscle fibres are uninucleated and found in parallel bundles.
C Intercalated discs allow the cardiac muscle cells to contract as a unit.
D The walls of blood vessels are made up of columnar epithelium.

The answer is C.

Solution

Smooth muscles are uninucleate and involuntary; skeletal muscle fibres are multinucleate and bundled in parallel. Gap junctions at the intercalated discs of cardiac muscle allow the cells to contract as a unit. Blood vessel walls are lined by simple squamous epithelium.

Concept Muscle tissue

Structural Organisation in Animals in past papers

92 questions from this chapter have appeared across 26 exam years.