Bone Tissue Features
What kind of cartilage is the epiphyseal plate made of?
What kind of growth occurs in the periosteum?
Appositional growth (widening)
What zone produces a matrix of hyaline cartilage and has blood vessels and chondrocytes?
Reserve
What hormone is the active form of Vitamin D?
Calcitriol
What is the functional unit of compact bone called?
osteon
Osteoporosis
In what direction does bone grow during endocondral ossification?
Length
What do cells in the parathyroid and thyroid glands sense to see if there was a change to the circulating calcium level?
What are the two cells that are the functional units of bone remodeling?
Osteoclasts, osteoblasts
What cells regulate the signal for osteoclasts to start resorbing bone?
Osteoblasts
What is it called when cells are increasing in number?
Hyperplasia
What hormone is released to help lower blood calcium levels?
Calcitonin
What kind of membrane feature is a gap junction?
Membrane protein
No
Similar to the epidermis, lower levels of what trigger the expression of genes, production of proteins, and hypertrophy?
Oxygen
What hormone is released when calcium levels are too low?
Parathyroid hormone