In Prenatal Development, the Umbilical Cord Connects the

question 32

Multiple Choice

In prenatal development, the umbilical cord connects the

• A)neural tube to the placenta.
• B)placenta to the amniotic sac.
• C)amniotic sac to the embryo.
• D)embryo and fetus to the placenta.
• E)embryo and fetus to the amniotic sac.

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Definitions:

Bone Remodeling

The continuous process where old bone tissue is replaced by new bone tissue, helping to maintain skeletal strength and mineral balance.

Osteoblast

Cells responsible for bone formation, secreting the matrix for bone and playing a key role in the bone remodeling process.

Osteoclast Activity

The process involving osteoclasts, which are cells that break down bone tissue, playing a crucial role in bone remodeling, repair, and maintenance of calcium levels in the blood.

External Callus

The outer bony framework formed around a fracture during the healing process.