Practice Set 2A Flashcards
What is the major producer of blood cells?
Red bone marrow
Osseous tissue is a connective tissue with a hardened matrix that makes up organs called ________.
bones.
Where do you find osteogenic cells?
Endosteum and periosteum
True or false: The bone cells responsible for the formation of the organic bone matrix are called chondrocytes.
False. Reason: Chondrocytes produce and maintain the cartilaginous matrix. Osteoblasts are the cells that deposit bone matrix and eventually become osteocytes.
What is the hollow space in which an osteocyte resides called?
Lacuna
Which are functions of the skeletal system?
Blood formation, Protection, Support, Acid-base balance
The connective tissue that makes up bone is called ______ tissue.
osseous
Mature bone cells found within lacunae of compact bone are called
osteocytes
True or false: Osteogenic cells are stem cells in the endosteum, periosteum, and central canals that can become chondrocytes.
False. Reason: Osteogenic cells are stem cells in the endosteum, periosteum, and central canals that can become osteoblasts rather than chondrocytes.
Osteoblasts secrete the hormone ______.
osteocalcin
What is the purpose of the canaliculi in compact bone?
To provide a passageway between the lacunae
Which of the following describes the lacunae of osseous tissue?
Spaces between lamellae that contain osteocytes
True or false: Osteocytes and osteoclasts develop from the same type of stem cell.
False. Reason: Osteogenic cells, osteoblasts, and osteocytes all belong to one cell lineage, but osteoclasts have an independent origin.
What are mature bone cells found within lacunae of compact bone called?
Osteocytes
The calcium-phosphate salt that mineralizes bone tissue is called ______.
hydroxyapatite
Where do you find osteogenic cells?
Endosteum and periosteum
In osseous tissue, the narrow channels connecting neighboring lacunae are called
canaliculi
What is the hollow space in which an osteocyte resides called?
Lacuna
The action carried out by osteoclasts is ______.
osteolysis
Which is part of the inorganic matter that makes up the matrix of bone?
Calcium phosphate salt