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Block 1: Histology > Lecture 6 > Flashcards

Lecture 6 Flashcards

1
Q

Perichondrium?

A

-Dense Irregular CT
-Made up of chondroblasts
-Function= growth + maintenance of cartilage
-Locations= surrounding hyaline + elastic cartilage

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2
Q

Function of Perichondrium?

A

Growth + Maintenance of Cartilage

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3
Q

Appositional Growth?

A

Growth is to the surface of the cartilage

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4
Q

Interstitial Growth?

A

Growth is from the inside of the cartilage

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5
Q

Isogenous Groups?

A

Cluster of Chondrocytes

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6
Q

Chondroblasts/cytes produce?

A

Collagen Fibers

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7
Q

Hyaline Cartilage?

A

Type of specialized CT –> Most Abundant

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8
Q

Locations of Hyaline Cartilage?

A

-Embryo (early skeleton)
-Articular Surfaces of Joints
-Epiphyseal Plates (Growing Bones)
-Respiratory System (trachea, bronchi, larynx)

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9
Q

Cellular Composition of Hyaline Cartilage?

A

Chondrocytes (houses in lacunae and surrounded by ECM)

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10
Q

Chondrocytes produce?

A

Fibers

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11
Q

GAGs?

A

Hyaluronic acid, keratin/chondroitin sulfate

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12
Q

GAGs + PGs + glycoproteins + fibers?

A

ECM

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13
Q

Hyaline Cartilage is typically surrounded by?

A

Perichondrium (dense irregular CT)

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14
Q

Elastic Cartilage?

A

A type of specialized CT

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15
Q

Locations of Elastic Cartilage?

A

-Auricle (external ear)
-Auditory Tubes (internal ear)
-Epiglottis (larynx)

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16
Q

Cellular Composition of Elastic Cartilage?

A

Chondrocytes (housed in lacunae and surrounded by ECM)

17
Q

Which one has more Chondrocytes? Elastic or Hyaline?

A

Elastic Cartilage

18
Q

Fibrocartilage?

A

A type of specialized CT

19
Q

Locations of Fibrocartilage?

A

-Intervertebral Discs (spine)
-Symphysis Pubis (pelvis)
-Menisci (knee)
-Joints (sternoclavicular and temporal mandibular)

20
Q

Cellular Composition of Fibrocartilage?

A

Chondrocytes (houses in lacunae and surrounded by ECM)

21
Q

Does NOT contain Perichondrium?

A

Fibrocartilage

22
Q

Can withstand compression and shear forces?

A

Fibrocartilage

23
Q

Hyaline Chondrocytes produce?

A

Type II collagen fibers

24
Q

Elastic Chondrocytes produce?

A

Elastic Fibers + Type II collagen fibers

25
Q

Fibrocartilage Chondrocytes produce?

A

Type I collagen fibers

26
Q

Perichondrium present in?

A

Hyaline + Elastic Cartilage ONLY

27
Q

Hyaline Cartilage is required in?

A

Formation of Bone (produces precursor skeleton in endochondral bone formation)

Block 1: Histology (9 decks)

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