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Chapter 6
25 ch6 flash cards
25
Biology
Undergraduate 1
12/01/2013

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Term
Axial skeleton
Definition

Bones of skull, thorax, and vertebral column that form longitudinal axis of body.


Term
Appendicular skeleton
Definition
The bones of limbs and girdle that attach them to the axial skeleton.
Term
Calcium
Definition
Most abundant mineral in the body.
Term
flat bones
Definition
Thin roughly parallel surfaced bones such as cranial bones.
Term
Sutural bones
Definition
Irregular bones formed between cranial bones.
Term
Irregular bones
Definition
Bones with complex shapes.
Term
Sesamoid
Definition
Small flat bones developed in the tendons of the knee, the hands and feet.
Term
Canal or meatus
Definition
A large passage way in a bone.
Term
Process
Definition
A projection or bump in a bone.
Term
Sinus
Definition
A chamber within a bone, usually filled with air.
Term
Foramen
Definition
A small rounded passageway in a bone.
Term
Fissure
Definition
An elongated cleft or gap in a bone.
Term
Head
Definition
The expanded proximal end of a bone that forms part of the joint.
Term
Tubercle
Definition
A small rounded projection on a bone.
Term
Sulcus
Definition
A deep narrow groove in a bone.
Term
Tuberosity
Definition
A small rough projection on a bone. It may occupy a broad area.
Term
Diaphysis
Definition
The shaft or elongated body of a bone.
Term
Trochlea
Definition
A smooth grooved articular process on a bone.
Term
Condyle
Definition
A smooth rounded articular process on a bone.
Term
Articular cartilage
Definition
What covers portions of epiphysis that form articulations?
Term
Osteocytes
Definition
Mature bone cells that cannot divide, the most numerous type of bone cell.
Term
Osteoblasts
Definition
Cells that produce new bony matrix.
Term
Osteoclasts
Definition
Giant cells that remodel bone matrix.
Term
Osteon
Definition
What is functional unit of compact bone?
Term
Endosteum
Definition
The cellular layer lining the medullary cavity.
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