Skeletal System 7 Bone Tissue Flashcards

1
Q

Bone Cells and matrix are organized into 2 MAIN types of bone tissue:

A

Compact Bone

Spongy/ Trabecular Bone

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2
Q

Define Compact Bone

A

Dense Osteous tissue

Location: Outer layer of bone

Contains: Osteocytes + Calcified Matrix

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3
Q

Define Osteon:

A

Haversion Systems

The basic functional unit of compact bone

Contains: bone cells + bone matrix arranged in cylinders that run longitudinally

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4
Q

Define a Central Canal:

A

Longitudinal, hollow tube

Function: Carries blood vessels + nerves

Run parallal to surface of bone

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5
Q

Define a Volkmann’s Canal:

A

Transverse channels

Function: Connects the central canals of neighboring osteons

Run perpendicular to surface of bone

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6
Q

Define Lamellae:

A

Layers of calcified matrix

Contains:

Osteocytes

Lacunae: small cavities that house bone matrix

Canaliculi: Tiny canals in b/w lacunae that allow osteocytes to communicate

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7
Q

Define Concentric Lamellae:

A

Lamellae arranged in rings around central canals

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8
Q

Define Circumferential Lamellae:

A

Runs parallel to bone surface

Location: Inner + outer boarders of compact bone

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9
Q

The function of Osteons in compact bone:

A

Longitudinal orientation of osteons provide compressive strength

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