Ost

What is the primary function of the osteoblasts in the human body?

• To break down bone tissue

• To form new bone tissue

• To transport oxygen in the blood

• To transmit nerve signals

Which vitamin is essential for the absorption of calcium in the bones?

• Vitamin A

• Vitamin B12

• Vitamin C

• Vitamin D

What is the main mineral component of bone?

• Calcium

• Iron

• Potassium

• Sodium

Which of the following cells are responsible for bone resorption?

• Osteoblasts

• Osteoclasts

• Chondrocytes

• Fibroblasts

What is the term for the process of bone formation?

• Ossification

• Calcification

• Osteoporosis

• Osteoarthritis

Which hormone regulates calcium levels in the blood and bone?

• Insulin

• Thyroxine

• Parathyroid hormone

• Adrenaline

What type of joint is found in the human skull?

• Hinge joint

• Ball and socket joint

• Suture joint

• Pivot joint

Which part of the bone contains the bone marrow?

• Periosteum

• Cortex

• Medullary cavity

• Epiphysis

What is the role of collagen in bone?

• To provide flexibility and strength

• To store minerals

• To produce red blood cells

• To transmit electrical signals

Which condition is characterized by the weakening of bones due to loss of bone mass?

• Arthritis

• Osteoporosis

• Rickets

• Scoliosis