00:01
Affected anatomical structures.
00:17
Skin layer, the epidermis, this is the outermost layer of skin, which may be compromised due to the cut.
00:32
The dermis, the papillary layer, the upper layer, which may also be affected to some extent, and the reticular layer.
00:51
The deeper layer of the dermis that's been ruptured.
00:57
Subcutaneous fascia, this layer lies beneath the dermis and provides insulation and cushioning.
01:10
Muscle tissue.
01:16
The knife injury penetrated through to the muscle, likely affecting muscle fibers and function.
01:24
Metacarpal bone.
01:31
The fracture of the metacarpal indicates the bone integrity is compromised.
01:37
Blood vessels, likely damage due to the deep cut, which can lead to bleeding and possible hematoma formation.
01:49
Nerves.
01:52
Depending on the depth of the cut, nerves in the area may be damaged, leading to loss of sensation or motor function.
02:01
Interrelationship of structures and functions.
02:25
In normal conditions, these structures work synergistically to protect the body and allow for movement and sensation.
02:33
Skin layers.
02:37
The skin serves as a barrier to protect internal structures, regulate temperature, and provide sensory information.
02:45
Dermis and subcutaneous fascia.
02:59
These layers provide structural support and cushioning for muscles and bones.
03:04
Muscle tissue, responsible for movement, works with bones to facilitate hand function.
03:16
Blood vessels supplies nutrients and oxygen to tissues and removes waste products.
03:25
It's essential for healing.
03:29
Nerves enable sensation and control over muscles, and it's crucial for coordinated movements.
03:42
Current dysfunction.
03:52
In reed's case, the injury disrupts the normal functions of these structures.
03:58
1.
03:59
Compromised skin barrier.
04:10
Increased risk of infection and fluid loss.
04:16
2.
04:16
Damage to the dermis.
04:24
It impairs structural integrity and healing.
04:28
3.
04:29
Muscle injury.
04:38
It reduces hand function and strength...