#1
Which mineral is essential for the formation and maintenance of healthy bones?
Calcium
ExplanationCalcium is vital for bone health, forming the structure and supporting maintenance.
#2
What is the medical term for the condition characterized by low bone density and deterioration of bone tissue?
Osteoporosis
ExplanationOsteoporosis refers to decreased bone density and bone tissue deterioration.
#3
What is the primary dietary source of vitamin D, which is essential for bone health?
Fatty fish
ExplanationFatty fish is a primary dietary source of vitamin D, crucial for bone health.
#4
At what age do humans typically reach peak bone mass?
20-25 years
ExplanationPeak bone mass is usually reached between the ages of 20-25 years.
#5
What is the recommended daily intake of calcium for adults aged 19-50 years according to dietary guidelines?
1000 mg
ExplanationDietary guidelines recommend 1000 mg of calcium daily for adults aged 19-50 years.
#6
Which of the following vitamins plays a crucial role in calcium absorption and bone health?
Vitamin D
ExplanationVitamin D aids in calcium absorption and is essential for bone health.
#7
What lifestyle factor is most closely associated with the risk of developing osteoporosis?
Sedentary lifestyle
ExplanationA sedentary lifestyle is closely linked to an increased risk of osteoporosis.
#8
Which of the following conditions is characterized by the softening and weakening of bones due to inadequate mineralization?
Osteomalacia
ExplanationOsteomalacia is characterized by softening and weakening of bones due to mineralization issues.
#9
What is the medical term for the process of new bone formation in the body?
Ossification
ExplanationOssification refers to the process of new bone formation in the body.
#10
What is the name of the condition characterized by an excessive curvature of the spine, often seen in advanced osteoporosis?
Kyphosis
ExplanationKyphosis is the excessive curvature of the spine often associated with advanced osteoporosis.
#11
Which hormone plays a significant role in regulating calcium levels in the blood and bone metabolism?
Parathyroid hormone
ExplanationParathyroid hormone regulates blood calcium levels and bone metabolism.
#12
Which of the following minerals is a major component of hydroxyapatite, the mineral complex that gives bones their hardness?
Phosphorus
ExplanationPhosphorus is a major component of hydroxyapatite, providing bone hardness.
#13
What is the condition called when bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes, or deficiency of calcium or vitamin D?
Osteoporosis
ExplanationOsteoporosis is the condition of brittle, fragile bones due to tissue loss.
#14
Which hormone, primarily produced by the adrenal glands, inhibits bone formation and promotes bone resorption?
Cortisol
ExplanationCortisol, primarily from adrenal glands, inhibits bone formation and promotes resorption.
#15
Which of the following minerals is essential for bone formation, nerve function, and muscle contraction?
Magnesium
ExplanationMagnesium is vital for bone formation, nerve function, and muscle contraction.