Ordinary CT Flashcards

1
Q

What are the functions of CT?

A
  • binding, packing and support
  • skeletal framework
  • protection and defence
  • insulation (adipose tissue)
  • transportation / nourishment
  • repair (scar tissue)
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2
Q

Where does CT originate from?

A

Common origin - mesenchyme

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3
Q

What are the 2 types of CT division?

A

Ordinary CT

Specialised CT

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4
Q

What are the three types of loose CT?

A
  1. Loose
  2. Adipose
  3. Reticular
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5
Q

What are the three types of dense CT?

A
  1. Irregular
  2. Regular
  3. Elastic
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6
Q

What are the two subdivisions of supportive CT?

A
  • cartilage

- bone

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7
Q

What types of matrix are bone and cartilage ?

A
  1. Bone - solid matrix

2. Cartilage - semisolid matrix

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8
Q

What are the three types of cartilage ?

A
  1. Hyaline
  2. Fibrocartilage
  3. Elastic
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9
Q

What are the two types of bones?

A
  1. Compact

2. Spongy

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10
Q

What are the two types of fluid CT?

A
  1. Blood

2. Lymph

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11
Q

Are there more fibres or cells in loose CT?

A

Less fibres

More cells

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12
Q

Are there more fibres or cells in dense CT?

A

More fibres

Less cells

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13
Q

What are the three headings that all CTs can be described under?

A

Cells
Fibres
Ground substance

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14
Q

What are the types of cells in CT?

A

Fixed

Wandering

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15
Q

What are the types of fibres in CT?

A

Collagen
Reticular
Elastic

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16
Q

What are the types of ground substance in CT?

A

Highly hydrated gel
Glycosaminoglycans
Proteoglycans
Glycoproteins

17
Q

What makes up the extra cellular matrix ?

A

Fibres and ground substance

18
Q

What will CT almost always support?

A

Epithelium

19
Q

Where is loose CT usually found ?

A

Widely distributed below epithelia
Forms the laminate propria of mucosa
Surrounds capillaries

20
Q

What does the low amount of fibres in loose CT mean ?

A

That there is a lot of space for a high population of cells

21
Q

Where is adipose tissue normally located ?

A

Under skin
Around kidneys
Within abdomen
Breasts

22
Q

What are the roles of adipose tissue?

A
  • reserve fuel
  • cushion
  • insulation
23
Q

Why do babies have brown fat?

A

As they have to develop thermoregulatory and therefore the brown fat produces heat in the newborn

24
Q

Why is brown fat brown ?

A
  • huge amount to vascularity

- abundance of mitochondria

25
Q

Where is dense irregular CT found?

A

Dermis
Submucosa of digestive tract
Fibrous capsules of organs

26
Q

What determines if a CT is dense regular or irregular ?

A

Arrangement of collagen fibres

27
Q

Where are dense regular tissue found ?

A

Ligaments (bone to bone)
Tendons (muscle to bone)
Aponeuroses (modified flattened tendons found on abdomen and back)