Question

__________ is the type of bone containing a lattice-like matrix and accounts for about 20% of adult bone mass.

a) Compact bone
b) Spongy bone
c) Long bone
d) Short bone

Answer 1

Spongy bone, with its web-like structure, accounts for about 20% of an adult's bone mass and provides strength while reducing weight.

Step-by-step explanation:

Spongy bone, also known as cancellous bone, is the type of bone containing a lattice-like matrix and accounts for about 20% of adult bone mass. Unlike compact bone, which is denser and forms the hard, outer layer of the bone, spongy bone is found primarily in the ends, or epiphyses, of long bones and inside the outer layer of compact bone. Spongy bone's porous, web-like trabecular structure provides strength to the bone while making it lighter, and it often contains red marrow where hematopoiesis occurs.