Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Pod practice > Wound Healing > Flashcards

Wound Healing Flashcards

1
Q

What is wound healing?

A

The sequence of repair processes which occur to restore normal structure and function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What should be included as wound descriptors?

A
  • Site
  • Size
  • Depth
  • Duration
  • Sepsis
  • Pain
  • Apprearance
  • Base
  • Margins
  • Surrounding Skin
  • Discharge
  • Odour
  • Foreign Bodies?
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Serous drainage?

A

Clear or light yellow, thin and watery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is Sanguineous drainage?

A

Red (with fresh blood), thin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is Serosanguineous drainage?

A

Pink to light red, thin and watery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is Purulent drainage?

A

Creamy yellow, green, white, or tan, thick and opaque

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a wound defined as?

A

A break in the integrity of the epidermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is Primary Intention wounds?

A
  • Simple wounds with minimal tissue loss, edges can e brought closely together
  • Heal relatively quickly
  • E.g. surgical incisions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is Secondary Intention wounds?

A
  • Complex wounds where tissue loss has occured, edges are open and cannot come together easily
  • Healing is prolongued
  • E.g. Trauma
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How do epidermal (superficial) level wounds heal?

A
  • Fibroblasts in the dermis contribute to the formation of a new basement membrane, upon which the epidermis will sit
  • Keratinocytes in the epidermis around the wound migrate across the wound site and close it
  • Epidermal growth factors stimulate cells to mitose and replace those which have migrated across the wound
  • Contact inhibition occurs once epithelial cells have met, and migration stops
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How are Deep wounds (Dermis and beyond levels) healed?

A
  • Haemostasis occurs prior to wound healing
    • Injury -> Bleeding -> Vasoconstriction
    • Platelet adhesion to the damaged area
    • Platelets aggregate together to form platelet plug
    • Clotting factors react to produce fibrin mesh to bind platelet plugs together
    • This is the formation of a scab
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the four stages of wound healing?

A
  • Inflammation
  • Proliferation / Granulation
  • Epithelialisation
  • Maturation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What occurs in the imflammation stage of wound healing?

A
  • Vasodilation - this leads to leakage of fluid which contain immunosubstances such as antibodies and macrophages. This helps to fight off / detect and harmful bacteria which may be near the wound
  • Increased vascular permeability
  • Emigration of white blood cells - released in fluid, neutrophils and macrophages mainly
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the sings of imflammation?

A
  • Heat
  • Redness
  • Swelling
  • Pain
  • Loss of Function
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is Angiogenesis?

A

The formation of new blood vessels through pre-existing blood vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the role of Macrophages release in the inflammatory stage?

A
  • Macrophages release:
    • Tumour Necrosing Factor (TNF)
      • Breaks down clot to enable granulation tissue to be formed in its place
    • Transforming Growth Factor (TGF)
      • Promotes formation of new tissue and blood vessels
17
Q

What happens in the Granulation stage of wound healing?

A
  • Fibroblasts produce collagen in random patterns to hold structures of the wound together
  • This gives a framework for aniogenesis to occur
18
Q

What happens in the Epithelialisation stage of wound healing?

A
  • Epidermis cells divide and migrate from the wound edges, until they contact each other
  • Fibroblasts slowly contact the edges of the wound, and contract, bringing the edges closer together
  • Collagen degrades and more is produced to help close the wound
19
Q

What happens in the Maturation stage of wound healing?

A
  • Synthesis and lysis of collagen
  • Remodelling of collagen to maximise the tensile strength
  • Scar tissue only has 80% tensile strength of normal skin tissue
  • Fibroblasts reduce in number, and blood vessels return to normal dilation as healing process completes

Pod practice (75 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions