A&P Chapter 6
The structural units of spongy bone are called
trabeculae
The _______________ is composed of hyaline cartilage and reduces friction between bones involved in a joint.
articular cartilage
Which vitamin increases calcium absorption by the small intestines?
Vitamin D
Red bone marrow is found within __________________________.
spongy bone
True or False? While most trabeculae become compact bone, the center always remains spongy.
True
The shaft of a long bone is called the _____________________.
Diaphysis
These are bone cells that function in resorption - the breakdown of bone extracellular matrix.
Osteoclasts
These are mature bone cells that maintain bone tissue.
Osteocytes
If collagen is removed from bone, what happens to the bone? Choose the best answer.
The bone becomes stiff and brittle
The lifelong process where bone tissue is continuously broken down and rebuilt is called ________________.
bone remodeling
The process by which long bones form from a hyaline cartilage model is called ______________________________.
endochondrial ossification
The ____________ is composed of hyaline cartilage and allows the diaphysis to grow in length.
epiphyseal line
Articular cartilage is found covering the _______________________ of a long bone.
epiphyses
Which region of a long bone articulates with other bones?
epiphysis
These hormones promote "growth spurts" during teenage years and promote bone health through adulthood.
estrogen and testosterone
Collagen within osseous tissue provides ________________________.
flexibility
Interstitial growth is _________________________.
growth of a bone in length at the epiphyseal plates.
The production of blood cells within red bone marrow is called ____________________.
hemopoiesis
During Appositional growth osteoclast destroy bone at the _______________________.
inside of a long bone.
The process by which flat bones form from connective tissue membranes is called _________________________.
intramembranous ossification
These are bones cells that actively form bone extracellular matrix.
osteoblasts
Parathyroid hormone will increase ________________ activity while Calcitonin will decrease _________________ activity.
osteoclast; osteoclast
The cells that are involved in bone resorption (the breakdown of bone extracellular matrix) are
osteoclasts
These are mature bone cells that maintain bone tissue.
osteocytes
The structural units of compact bone are called _____________________.
osteons
Which hormone raises blood calcium levels?
parathyroid hormone