Which of the Following Is Not True About Vertebrate Bone

question 2

Multiple Choice

Which of the following is not true about vertebrate bone?

• A)consist of cells and an extracellular matrix containing collagen fibers
• B)contain hydroxyapatite crystals
• C)contain sarcomere units
• D)contain blood vessels
• E)capable of growth and remodeling

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Definitions:

Sarcomere

The fundamental unit of muscle fiber responsible for muscular contraction, delineated by Z lines.

Thick Filaments

Protein structures in muscle fibers responsible for muscle contraction.

Thin Filaments

Filaments within muscle fibers composed primarily of the protein actin, which play a key role in muscle contraction by sliding past thick filaments.

A Band

The dark area observed in the sarcomere of skeletal and cardiac muscle fibers, consisting of thick myosin filaments.