Osteocytes and Bone Physiology

The video explains osteocytes, a type of bone cell, detailing their formation from osteoblasts, their structure, and their roles in maintaining bone density, responding to stress, and regulating calcium and phosphate levels in the blood.

What type of tissue do osteocytes belong to?

• Muscle tissue

• Osseous tissue

• Epithelial tissue

• Nervous tissue

What do osteogenic cells transform into before becoming osteocytes?

• Osteoblasts

• Chondrocytes

• Fibroblasts

• Adipocytes

Where are osteocytes located within the bone structure?

• In lacunae

• In the bone marrow

• In the Haversian canal

• In the periosteum

What is the function of canaliculi in bone tissue?

• To store calcium

• To produce red blood cells

• To support bone flexibility

• To connect lacunae

How do osteocytes contribute to bone matrix maintenance?

• By resorbing and depositing bone matrix

• By producing collagen

• By breaking down old bone cells

• By forming new bone cells

What happens to osteocytes' activity compared to osteoblasts?

• They stop functioning

• They become less active

• They remain equally active

• They become more active

What role do osteocytes play in bone density?

• They decrease bone density

• They have no effect on bone density

• They increase bone density

• They maintain bone density

How do osteocytes respond to stress on bones?

• By producing new bone cells

• By breaking down bone tissue

• By increasing calcium levels

• By sending biochemical signals

What ions do osteocytes help regulate in the blood?

• Chloride and bicarbonate

• Iron and magnesium

• Calcium and phosphate

• Sodium and potassium

What is the primary function of osteocytes in bone remodeling?

• To produce bone marrow

• To initiate bone growth

• To act as stress sensors

• To dissolve bone tissue