Which of the following statements are true of the embryonic and infant skull? (Read carefully and select all of the correct statements.)
A)The cranial bones are first made of cartilage.
B)The first site of bone matrix production is called a center of ossification.
C)All of the cranial bones form sutures just before birth.
D)Bone matrix is produced by osteoclasts.
E)Fontanels are made of fibrous connective tissue,and they permit the compression of the skull during birt
F)All the fontanels become completely ossified within 2 months after birt

Question

Quizplus · Accepted Answer

A) Incorrect. The cranial bones are first made of membranes not cartilage.
B) Correct. The first site of bone matrix production is called a center of ossification.
C) Incorrect. Some of the cranial bones form sutures well before birth while some continue to form sutures into adulthood.
D) Incorrect. Bone matrix is produced by osteoblasts not osteoclasts.
E) Correct. Fontanels are made of fibrous connective tissue, and they permit the compression of the skull during birth.
F) Incorrect. All fontanels do not become completely ossified until around 2 years of age.

Which of the Following Statements Are True of the Embryonic