#1
Which type of bone tissue provides structural support and protection?
Compact bone
ExplanationCompact bone provides strength and protection with its dense structure.
#2
What is the main component of bone tissue that gives it its strength and hardness?
Calcium phosphate
ExplanationCalcium phosphate is the key component imparting strength and hardness to bone tissue.
#3
Which type of bone tissue contains trabeculae arranged in a lattice-like structure?
Spongy bone
ExplanationSpongy bone contains trabeculae in a lattice-like arrangement.
#4
Which bone tissue contains numerous spaces filled with bone marrow and provides cushioning and support?
Spongy bone
ExplanationSpongy bone contains spaces filled with bone marrow, providing cushioning and support.
#5
Which type of bone tissue contains osteons or Haversian systems?
Compact bone
ExplanationCompact bone contains osteons or Haversian systems.
#6
What type of cells are responsible for bone formation?
Osteoblasts
ExplanationOsteoblasts are cells responsible for the formation of bone tissue.
#7
Which hormone plays a crucial role in regulating calcium levels in the blood and bone?
Parathyroid hormone (PTH)
ExplanationParathyroid hormone (PTH) regulates calcium levels in the blood and bone.
#8
Which vitamin is essential for proper calcium absorption and bone health?
Vitamin D
ExplanationVitamin D is crucial for calcium absorption and overall bone health.
#9
What is the process by which bone tissue is broken down and resorbed by osteoclasts?
Osteolysis
ExplanationOsteolysis is the process of bone tissue breakdown and resorption by osteoclasts.
#10
Which bone disorder is characterized by a decrease in bone density, making bones fragile and prone to fractures?
Osteoporosis
ExplanationOsteoporosis is a bone disorder marked by decreased bone density and increased fracture risk.
#11
What is the functional unit of compact bone tissue?
Osteon
ExplanationThe osteon is the functional unit of compact bone tissue.
#12
What is the primary function of osteocytes in bone tissue?
Maintaining bone matrix
ExplanationOsteocytes primarily maintain the bone matrix in bone tissue.
#13
What is the primary function of osteoclasts in bone tissue?
Bone resorption
ExplanationOsteoclasts play a key role in bone resorption in bone tissue.
#14
Which type of bone tissue is primarily composed of collagen fibers and serves as a precursor to bone formation?
Osteoid
ExplanationOsteoid is primarily composed of collagen fibers and serves as a precursor to bone formation.
#15
Which hormone is primarily responsible for stimulating osteoclast activity and increasing blood calcium levels?
Parathyroid hormone (PTH)
ExplanationParathyroid hormone (PTH) stimulates osteoclast activity and increases blood calcium levels.