Question

Spongy or cancellous bones are
A. Skull bones
B. Vertebrae
C. Femur
D. Ribs

• A. a and b are correct
• B. b and d are correct
• C. a, b and c are correct
• D. a and c are correct

Answer 1

The correct option is A a and b are correct

Spongy or cancellous bone

Cancellous bone or spongy bone forms the inner layer of bones.

This type of bone tissue does not contain osteons but instead contain trabeculae (lamellae) that are arranged as rods or plates.

Thus it is a light, porous, compressible bone that is able to withstand stresses in many directions.

Skull Bone

Skull bone includes 8 cranial bones, 14 facial bones, 6 auditory ossicles, and the Hyoid Bone.

Cancellous bone makes up about 20 percent of the human skeleton and are the component of skull bones, ribs etc.

Vertebrae

Vertebrae are the spongy bones that include 24 vertebrae bones, the sacrum bone, and the coccyx bone.

Final answer
a. a and b correct