#1
Which type of bone cells are responsible for bone formation?
Osteoblasts
ExplanationOsteoblasts are bone cells that build and deposit new bone tissue.
#2
What is the primary component of bone matrix?
Calcium phosphate
ExplanationCalcium phosphate is the main mineral component of bone matrix.
#3
Which of the following is NOT a function of the skeletal system?
Hormone secretion
ExplanationThe skeletal system does not secrete hormones; it provides structural support and protection.
#4
What is the term for the process of bone formation?
Ossification
ExplanationOssification is the process of forming new bone tissue.
#5
Which type of bone growth occurs at the epiphyseal plate?
Interstitial growth
ExplanationInterstitial growth takes place at the epiphyseal plate, contributing to bone lengthening.
#6
Which hormone plays a crucial role in bone remodeling and calcium homeostasis?
Parathyroid hormone
ExplanationParathyroid hormone regulates calcium levels and bone remodeling.
#7
Which of the following factors can negatively affect bone growth in children?
Growth hormone deficiency
ExplanationGrowth hormone deficiency can impede proper bone growth in children.
#8
What is the name of the process by which bone cells become embedded within the bone matrix?
Osteocytosis
ExplanationOsteocytosis involves bone cells becoming embedded within the bone matrix.
#9
What is the term for the process by which bone tissue is broken down?
Resorption
ExplanationResorption is the process of breaking down and removing bone tissue.
#10
Which type of bone is primarily responsible for producing blood cells?
Flat bone
ExplanationFlat bones, like the pelvis, are major sites for blood cell production (hematopoiesis).
#11
What is the term for a fracture that breaks the bone into multiple fragments?
Comminuted fracture
ExplanationA comminuted fracture involves the bone breaking into multiple fragments.
#12
Which disorder is characterized by a decrease in bone density and an increased risk of fractures?
Osteoporosis
ExplanationOsteoporosis is a condition marked by reduced bone density and an elevated risk of fractures.