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Ch. 6 Osseous Tissue & Bone Structure
25 Flash Cards for Ch. 6
25
Anatomy
Undergraduate 2
06/13/2012

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Cards

Term
Bones are classified by what 3 things?
Definition

1) Shape

2) Internal tissue organization

3) Bone markings (surface features; marks)

Term
Name the 6 bone shapes.
Definition

1) Sutural bones

2) Irregular bones

3) Short bones

4) Flat bones

5) Long bones

6) Sesamoid bones

Term
These types of bones have complex shapes.  Examples are: spinal vertebrae and pelvic bones. 
Definition
Irregular Bones
Term
These types of bones are small and thick.  Examples are: ankle and wrist bones.
Definition
Short Bones
Term
These types of bones are small and irregular. These are found between the flat bones of the skull.
Definition
Sutural Bones
Term
These types of bones are long and thin.  They are found in arms, legs, hands, feet, fingers, and toes.
Definition
Long Bones
Term
These types of bones are thin with parallel surfaces.  They are found in the skull, sternum, ribs, and scapulae.
Definition
Flat Bones
Term
These types of bones are small and flat.  They develop inside tendons near joints of knees, hands, and feet.
Definition
Sesamoid Bones
Term
This structure of a long bone consists of a wide part at each end, is mostly spongy (cancellous) bone, and is covered with compact bone (cortex).
Definition
Epiphysis
Term
This structure of a long bone is the shaft.  It is a heavy wall of compact/dense bone.  Its central space is called medullary (marrow) cavity.
Definition
Diaphysis
Term
This structure of a long bone is where the diaphysis and the epiphysis meet.
Definition
Metaphysis
Term
Bone (osseous) tissue produces a solid matrix of _________ ___________ deposits.
Definition
calcium salt
Term
__________ form pathways for blood vessels and exchange nutrients and wastes.
Definition
Canaliculi
Term
__________ covers the outer surfaces of bones.  It consists of outer fibrous and inner cellular layers.
Definition
Periosteum
Term
2/3 of bone matrix is:
Definition
calcium phosphate Ca3(PO4)2
Term
1/3 of bone matrix is:
Definition
protein fibers (collagen)
Term
Bone contains which 4 types of cells?
Definition

1) Osteocytes

2) Osteoblasts

3) Osteoprogenitor cells

4) Osteoclasts

Term
These are mature bone cells that maintain the bone matrix.  They live in lacunae and are between the layers(lamellae) of the matrix.
Definition
Osteocytes
Term
What are the two major functions of osteocytes?
Definition

1) To maintain protein and mineral content of matrix

2) To help repair damaged bone

Term
These are immature bone cells that secrete matrix compounds (osteogenesis).  When these are surrounded by bone, they become osteocytes.
Definition
Osteoblasts
Term
These are mesenchymal stem cells that divide to produce osteoblasts. They are located in the endosteum and assist in fracture repair.
Definition
Osteoprogenitor Cells
Term
These giant, multinucleate cells secrete acids and protein-digesting enzymes.  They dissolve bone matrix and release stored minerals (osteolysis).
Definition
Osteoclasts
Term
_________ is the basic unit in the structure of compact bone.
Definition
Osteon
Term
Why is yellow bone marrow the color yellow?
Definition
Because it stores fat.
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