#1
Which type of bone is primarily responsible for producing blood cells?
Flat bones
ExplanationFlat bones house bone marrow, where blood cells are produced.
#2
Which cells are responsible for bone resorption, breaking down bone tissue?
Osteoclasts
ExplanationOsteoclasts break down bone tissue during bone remodeling.
#3
What is the name of the process by which bone tissue is formed during development?
Ossification
ExplanationOssification is the process of bone formation.
#4
Which vitamin is essential for calcium absorption in the intestine?
Vitamin D
ExplanationVitamin D facilitates calcium absorption from the intestines.
#5
Which of the following is NOT a function of the skeletal system?
Communication
ExplanationCommunication is not a primary function of the skeletal system.
#6
Which type of joint allows for the widest range of motion?
Ball and socket joint
ExplanationBall and socket joints offer the greatest range of motion.
#7
What is the primary organic component of bone tissue?
Collagen
ExplanationCollagen provides strength and flexibility to bone tissue.
#8
Which hormone is primarily responsible for regulating calcium levels in the blood?
Parathyroid hormone (PTH)
ExplanationPTH increases blood calcium levels by stimulating bone resorption.
#9
Which bone disorder is characterized by a reduction in bone density, making bones fragile and more prone to fractures?
Osteoporosis
ExplanationOsteoporosis leads to weakened bones and increased fracture risk.
#10
What is the name of the cartilaginous tissue that separates the epiphysis from the diaphysis in growing bones?
Epiphyseal plate
ExplanationThe epiphyseal plate allows for longitudinal bone growth in children.
#11
What is the primary mineral component of hydroxyapatite crystals in bone tissue?
Calcium phosphate
ExplanationCalcium phosphate provides rigidity to bone tissue.
#12
Which bone disorder is characterized by softening of the bones due to vitamin D deficiency?
Osteomalacia
ExplanationOsteomalacia results in softening and weakening of bones.
#13
Which microscopic structures are responsible for the continuous remodeling of bone tissue?
Osteons
ExplanationOsteons are the functional units of compact bone, involved in remodeling.
#14
Which bone cell type is responsible for depositing new bone tissue?
Osteoblasts
ExplanationOsteoblasts build new bone tissue during bone formation.
#15
What is the term for the process of bone formation in embryos?
Intramembranous ossification
ExplanationIntramembranous ossification forms flat bones directly from mesenchymal cells.
#16
What is the term for the process of bone growth in width?
Appositional growth
ExplanationAppositional growth increases bone diameter by adding layers of bone tissue.
#17
Which bone cell type is responsible for maintaining bone tissue by monitoring and responding to mechanical stress?
Osteocytes
ExplanationOsteocytes regulate bone density and repair in response to mechanical strain.