Bone Cells and Their Functions

The video tutorial explains the roles of different bone cells, focusing on osteoblasts, which build new bone called osteoid. Osteoblasts work in teams to deposit calcium and minerals, strengthening bones. They transform into lining cells, regulating calcium passage. Hormones like parathyroid hormone activate osteoclasts, which dissolve bone for maintenance. Osteocytes, derived from osteoblasts, connect within the bone. The tutorial offers study tips to remember these functions, emphasizing the balance between bone-building and bone-cleaning processes.

What is the primary function of osteoblasts?

• To build new bone

• To dissolve old bone

• To produce red blood cells

• To regulate blood calcium levels

What is the new bone tissue produced by osteoblasts called?

• Osteon

• Osteoid

• Osteoclast

• Osteocyte

What happens to osteoblasts after they complete their bone-building function?

• They become inactive

• They are absorbed by the body

• They turn into lining cells

• They become osteoclasts

Which hormone is involved in the activation of osteoclasts?

• Insulin

• Parathyroid hormone

• Adrenaline

• Thyroid hormone

What is the primary role of osteoclasts?

• To produce collagen

• To dissolve old bone

• To transport nutrients

• To build new bone

From where do osteoclasts originate?

• Bone marrow

• Liver

• Pancreas

• Kidneys

What do osteocytes do within the bone?

• They regulate blood flow

• They connect and strengthen bone

• They dissolve bone

• They build new bone

Which bone cell is responsible for maintaining bone strength by connecting with other cells?

• Osteoblast

• Osteoclast

• Lining cell

• Osteocyte

What mnemonic can help remember the function of osteoblasts?

• Osteoblasts are carriers

• Osteoblasts are cleaners

• Osteoblasts are destroyers

• Osteoblasts are builders

What is a useful mnemonic to remember the function of osteoclasts?

• Osteoclasts are builders

• Osteoclasts are creators

• Osteoclasts are carriers

• Osteoclasts are cleaners