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Intergrated Medical Sciences > Connective Tissue- Histology > Flashcards

Connective Tissue- Histology Flashcards

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USMLE® Step 1 flashcards
1
Q

Define deep tissue?

A

never exposed to environment outside of body.

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2
Q

What supports and binds to other tissues?

A

Cartilage

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3
Q

What stores nutritional substances?

A

Fats

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4
Q

What produces protective and regulatory substances

A

ECM

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5
Q

Name some of the most diverse tissues?

A

Bone, blood and fat

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6
Q

What is connective tissue made ups of?

A

Superficial Fascia
Deep fascia
Subserous Fascia

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7
Q

Define Superficial Fascia

A

Between skin and underlying organs
Areloar tissue and fats
Subcutaneous layer or hypodermis

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8
Q

Define Deep Fascia

A

Forms strong fibrous internal network
Dense connective tissue
Bound to capsules, tendons and ligaments

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9
Q

Define Subserous Fascia

A

Between serous membranes and deep facia

Areloar tissue

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10
Q

What is connective tissue derived from?

A

Mesoderm

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11
Q

Define mesoderm

A

Varys in structure and function
Highly vascularised and well nourished.
Cell adhesion mechanism
Replication and repair

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12
Q

What 3 basic components are found in connective tissue and define them?

A 
Specialised cells 
- Fibroblasts and osteocytes 
Protein Fibres 
- Collagen
Ground substances 
- Fills all spaces between cell fibres and ground substances MATRIX 
Largest volume of connective tissue
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13
Q

What components consist in the supporting of connective tissue?

A

Bone and cartilage

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14
Q

What components consist in the supporting of fluid in the C.T?

A

Blood and Lymph

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15
Q

What components consist in the supporting of THE PROPER in the C.T?

A

Loose and dense C.T

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16
Q

Name the 5 supporting cells in connective tissues?

A
  • Fibroblasts
  • Chondrocytes
  • Osteocytes
  • Myofibroblasts
  • adipocytes
17
Q

What are the 3 connective tissue fibres and describe them?

A

•Collagen
Long, straight, branched, strong, flexible

•Reticular
Thinner than collagen, forms branching interwoven
network

•Elastic
Branched, wavy, after stretching returns to normal

18
Q

Define the embryonic classification of C.T?

A

During development, migrates and interacts with other tissues to form organs

Some mesenchyme persists past embryonic period:
Undifferentiated cells around blood vessels (fibroblasts) which repair the vessel.

19
Q

Define the connective tissue proper classification?

A

Large spindle shaped cell (fibroblast).

  • Produces collagen, elastic and reticular fibres.
  • Loose flexible matrix.

•Six basic types distinguished by matrix, and type and arrangement of fibres.

20
Q

Define Loose C.T?

A

Flexible strength in all directions (skin)

21
Q

Define Dense Regular C.T?

A

Densely packed collagen fibres parallel to direction of force (tendons and ligaments)

22
Q

Define Dense Irregular C.T?

A

Densely packed collagen fibres (dermis of skin)

23
Q

Define elastic C.T?

A

Elastic fibres that can stretch 1.5 times and return.

walls of large arteries

24
Q

Define Reticular C.T?

A

Jellylike matrix (forms framework of organs such as liver and spleen)

25
Q

Define Adipose C.T?

A

Cells store fat droplets. Acts as food reserve, protects organs and insulator.

26
Q

Define the cartlidage classification?

A

Cell Chondrocyte
Semisolid matrix with marked elastic poperties

  • Supportive and protective CT frequently associated with bone
  • Avascular (difficult to heal)
  • Three types – based on type and amount of fibres embedded within matrix
27
Q

What is the location and function of hyaline cartridge?

A

Location- Between the tips of ribs and bones of sternum covers synovial joints
Function- Stiff but flexible support and reduces friction between bony surfaces

28
Q

What is the location and function of elastic cartridge?

A

Location- Auricle of the external ear and the epiglottis auditory canal and cuniform cartridges of the larynx.

Function- Provides support and tolerates distortion without damage

29
Q

What is the location and function of fibrocartridge?

A

Location- Pads within the knee joint between the pubic bones of pelvis.

Function- Results compression prevents bone to bone contact

30
Q

What cells are within the vascular connective tissue?

A

Erythrocytes
Leukocytes
Thrombocytes (platelets)

  • Highly specialised - viscous
  • Liquid plasma matrix

RBCS

WBCS

  • Monocytes
  • Lymphocytes
  • Eosinophils
  • Microphages
  • Neutrophils
  • Basophils

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Intergrated Medical Sciences (38 decks)

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