Connective Tissue Flashcards

1
Q

What major roles does connective tissue play in the body?

A

Bind different tissues, anchor organs and tissues in place, supports and protects and transports blood

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2
Q

List the characteristics of connective tissue

A

All connective tissue contains specialised cells

and an extracellular matrix

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3
Q

What is the extracellular matrix made up of?

A

Protein fibres

Ground substance

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4
Q

List the key cells found in connective tissue

A
  • Fibroblasts
  • Plasma cells
  • Mast cells
  • Adipose cells
  • Leukocytes
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5
Q

List the extracellular fibres

A
  • Collagen
  • Elastic
  • Reticular
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6
Q

Describe fibroblasts

A

Large mobile cells with many protrusions that secrete matrix fibres and ground substance components

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7
Q

Describe plasma cells

A

They develop from B lymphocytes produce and secrete antibodies

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8
Q

What is the function of mast cells?

A

They release histamine and promote inflammation

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9
Q

Describe adipose cells

A

They are found under skin and around organs and store lipids

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10
Q

Describe leukocytes

A

Immune cells with different functions will migrate to injuries and infection
Include Macrophages, Neutrophils & Eosinophils

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11
Q

Describe collagen fibres and where they are found

A
  • Long, straight and very strong

- Found in bone, cartilage, tendons and ligaments

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12
Q

What is the function of elastic fibres?

A

They return connective tissue to original shape and size after stretching

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13
Q

Describe reticular fibres and where they are found

A
  • A thin, interwoven fibre network containing collagen

- Adds support and stability

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14
Q

What is the function of ground substance?

A
  • Surrounds fibres and fills gaps between cells
  • Supports cells and binds them together
  • Lubricant and shock absorber
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15
Q

What are the two main categories of connective tissue?

A
  • Proper connective tissue

- Specialised connective tissue

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16
Q

List the proper connective tissue

A
  • Loose connective tissue
  • Dense connective tissue
  • Reticular tissue
  • Adipose tissue
17
Q

List the specialised connective tissue

A
  • Bone
  • Cartilage
  • Blood
18
Q

Loose connective tissue is also known as what?

A

Areolar tissue

19
Q

Describe loose connective tissue

A
  • Widely distributed around the body
  • Composed primarily of ground substance plus all three protein fibres and fibroblasts
  • Can also contain immune cells
20
Q

List dense connective tissue

A

Includes tendons, most ligaments, fasciae of muscle, pericardium, periosteum, joint capsules, elastic tissue of lungs and arteries

21
Q

What are the three types of dense connective tissue

A
  • Dense irregular
  • Dense regular collagenous
  • Dense regular elastic
22
Q

Describe dense irregular connective tissue

A
  • Main component is collagen fibres

- Arranged along different planes to provide multidirectional resistance to tension

23
Q

Describe dense regular

A
  • Main component is collagen fibres
  • Arranged in parallel bundles
    that are very strong