#1
What is the primary component of bone tissue?
Calcium phosphate
ExplanationMain mineral in bones, providing strength and rigidity.
#2
Which type of bone tissue is responsible for storing minerals, particularly calcium and phosphorus?
Compact bone
ExplanationDense bone tissue, stores minerals and provides support.
#3
Which type of bone tissue is also known as cortical bone?
Compact bone
ExplanationHard outer layer of bone, providing protection and support.
#4
What is the purpose of the periosteum?
To provide a site for muscle attachment
ExplanationOuter layer of bone, essential for muscle attachment and bone repair.
#5
Which vitamin is essential for proper bone mineralization?
Vitamin D
ExplanationCritical for calcium absorption and bone health.
#6
What is the primary component of the organic matrix of bone tissue?
Collagen fibers
ExplanationProvide flexibility and strength to bone structure.
#7
What is the function of osteoclasts in bone tissue?
Break down bone tissue
ExplanationCells responsible for bone resorption and remodeling.
#8
Which hormone regulates calcium levels in the blood and plays a key role in bone remodeling?
Parathyroid hormone (PTH)
ExplanationRegulates calcium homeostasis, stimulates bone resorption.
#9
Which type of bone tissue is highly vascularized and contains trabeculae?
Cancellous bone
ExplanationSpongy bone, with a network of trabeculae for strength.
#10
What is the function of osteocytes in bone tissue?
To sense mechanical stress and regulate bone remodeling
ExplanationMaintain bone matrix, involved in sensing and signaling.
#11
Which cell type is responsible for bone formation during growth and repair?
Osteoblast
ExplanationCells that build bone by secreting new matrix.
#12
Which hormone promotes bone growth and stimulates protein synthesis in osteoblasts?
Growth hormone
ExplanationRegulates growth, including bone growth and metabolism.
#13
What is the function of the epiphyseal plate?
To allow for longitudinal bone growth
ExplanationCartilaginous plate where longitudinal growth occurs.
#14
Which bone cell type is responsible for the resorption of bone tissue?
Osteoclast
ExplanationCells that break down and reabsorb bone tissue.
#15
What is the function of the medullary cavity in long bones?
To store yellow bone marrow
ExplanationCentral cavity storing fat tissue in long bones.
#16
Which bone cell type is derived from monocytes and involved in bone resorption?
Osteoclast
ExplanationDerived from white blood cells, break down bone.
#17
What is the purpose of the Canaliculi in bone tissue?
To allow for the exchange of nutrients and waste products between osteocytes
ExplanationMicroscopic channels connecting bone cells for nutrient exchange.
#18
Which type of bone tissue contains lamellae arranged in concentric rings around Haversian canals?
Compact bone
ExplanationDense bone with organized structure for strength.
#19
What is the function of the endosteum?
To line the medullary cavity and trabeculae
ExplanationThin membrane lining the inner surface of bone.
#20
Which hormone stimulates osteoclast activity and increases blood calcium levels?
Parathyroid hormone (PTH)
ExplanationRegulates calcium levels by stimulating bone breakdown.
#21
What is the function of the osteon in compact bone tissue?
To resist mechanical stress and support the weight of the body
ExplanationBasic unit of compact bone, provides strength.
#22
Which bone tissue type contains trabeculae with a honeycomb-like structure?
Spongy bone
ExplanationLess dense bone with a lattice-like structure.
#23
What is the primary function of red bone marrow?
To produce red blood cells
ExplanationSite of hematopoiesis, producing blood cells.
#24
Which type of bone tissue is found at the ends of long bones and within the interior of flat bones?
Spongy bone
ExplanationLess dense bone, providing structural support.
#25
What is the Haversian canal?
A canal that contains blood vessels and nerves
ExplanationMicroscopic channel providing nutrients to bone cells.