Supporting Connective Tissues Flashcards Preview

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Flashcards in Supporting Connective Tissues Deck (30):
1

• Gel-type ground substance
• For shock absorption and protection

Cartilage

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• Calcified (made rigid by calcium salts, minerals)
• For weight support

Bone

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Means made rigid by calcium salts, minerals

Calcified

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Support Soft Tissues and Body Weight

Cartilage
Bone
Cartilage Matrix
• Chondrocytes (Cartilage Cells) surrounded by
Lacunae (Chambers)

5

• Proteoglycans derived from chondroitin sulfates
• Ground substance proteins

Cartilage matrix

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Cartilage Cells are also known as

Chondrocytes

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Chambers also known as

Lacunae

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• Cartilage Structure with No blood vessels. As a result, chrondocytes produce ______

produce antiangiogenesis factor

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• Outer, fibrous layer (for strength)
• Inner, cellular layer (for growth and maintenance)

• Perichondrium

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Cartilage Structure characteristics

-No blood vessels
-Perichondrium

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Types of Cartilage

1. Hyaline cartilage
2. Elastic cartilage
3. Fibrocartilage (fibrous cartilage)

12

• Stiff, flexible support
• Reduces friction between bones
• Found in synovial joints, rib tips, sternum, and trachea

• Hyaline Cartilage

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• Supportive but bends easily
• Found in external ear and epiglottis

• Elastic Cartilage

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• Limits movement
• Prevents bone-to-bone contact
• Pads knee joints
• Found between pubic bones and intervertebral discs

Fibrocartilage (Fibrous Cartilage)

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• Found in synovial joints, rib tips, sternum, and trachea

• Hyaline Cartilage

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• Found in external ear and epiglottis

• Elastic Cartilage

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• Found between pubic bones and intervertebral discs

Fibrocartilage (Fibrous Cartilage)

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Functions of Hyaline Cartilage

FUNCTIONS: Provides stiff but
somewhat flexible support;
reduces friction
between bony
surfaces

19

Locations of Hyaline Cartilage

LOCATIONS: Between tips of ribs
and bones of sternum; covering
bone surfaces at synovial joints;
supporting larynx (voice box),
trachea, and bronchi; forming part
of nasal septum

20

Functions of Elastic Cartilage

FUNCTIONS: Provides support, but
tolerates distortion without
damage and returns
to original shape

21

Locations of Elastic Cartilage

LOCATIONS: Auricle of external ear;
epiglottis; auditory canal; cuneiform
cartilages of larynx

22

Functions of Fibrocartilage

FUNCTIONS: Resists
compression;
prevents bone-to-bone
contact; limits
movement

23

Locations of Fibrocartilage

LOCATIONS: Pads within knee joint;
between pubic bones of pelvis;
intervertebral discs

24

• Strong (calcified calcium salt deposits)
• Resists shattering (flexible collagen fibers)

Bone or Osseous Tissue

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• Arranged around central canals within matrix
• Small channels through matrix (canaliculi) access
blood supply

Bone Cells or Osteocytes

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• Covers bone surfaces, and arranged into two layers:
• Fibrous layer
• Cellular layer

• Periosteum

27

Two layers of • Periosteum

• Fibrous layer
• Cellular layer

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Small channels through matrix is called

canaliculi

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Resists shattering

flexible collagen fibers

30

Bone is strong because of

calcified calcium salt deposits