Skeletal Part 2 Flashcards
Interstitial lamellae
Are either components of compact bone that are between osteons or are the leftover parts of osteons that have been partially resorbed so they look like a bite has been taken out of them
Are derived from mesenchymal cells and they produce the cartilage matrix
Chondroblasts
Is covered by a dense irregular connective tissue called
Perichondrium-that helps maintain its shape
Refers to the formation and development of bone connective
Ossification or osteogenesis
Begins in the embryo and continues as the skeleton grows during childhood and adolescence.
Ossification
Begins with a hyaline cartilage model and produces most bones of the skeleton, including those of the upper and lower limbs, the vertebrae and ends of the clavicle
Endochondral
Produced by the anterior pituitary gland
Growth hormone
It affects bone growth by stimulating the liver to form another hormone called
Insulin like growth factors
Is secreted by the thyroid gland and stimulates bone growth by influencing the basal metabolic rate of bone cells
Thyroid hormone
Are a group of steroid hormones that are released from the adrenal cortex and regulate blood glucose levels
Glucocorticoids
Appears to play a role in the rate and regulation of normal bone remodeling because it affects osteoblast differentiation.
Serotonin
Ultraviolet light covers the precursor molecule in keratinocytes of the skin
Vitamin D3 (cholecalciferol)
Also absorbed from the small intestine into the blood from the diet
Vitamin D3
Converted by liver enzymes to _________ by the addition of a hydroxyl group
Calcidiol
Calcidiol circulates in the blood: As it passes through blood vessels of the kidney, it is converted to
Calcitriol
