What is the investing layer of deep cervical fascia?
The investing layer of deep fascia of the neck is a tough layer of fibrous tissue arranged like a collar around the neck. It is attached below to the upper surface of the clavicle. It splits to enclose the sternocleidomastoid and trapezius muscles on each side (Figure 4).
What are the layers of deep fascia?
By this classification system, the deep cervical fascia of the neck can subdivide into the investing layer, pretracheal and prevertebral layers, also known as the external, middle and deep layers respectively. The pretracheal, or middle layer, can be further subdivided into the muscular and visceral divisions.
Which two muscles are enclosed by the investing cervical fascia?
The superficial layer is also known as the investing layer of deep cervical fascia. It envelops the trapezius, sternocleidomastoid, and muscles of facial expression.
What is deep fascia?
Deep fascia is a dense connective tissue that is commonly arranged in sheets that form a stocking around the muscles and tendons beneath the superficial fascia (1). The superficial fascia has two layers: the external fatty layer and the deep membranous layer (2,3).
What is superficial and deep fascia?
The superficial fascia is a loose connective tissue layer immediately deep to the skin. It contains fat, blood vessels, lymphatics, glands, and nerves. The deep fascia, also known as the investing fascia, envelops muscles and serves to support the tissues like an elastic sheath.
What is the name of deep fascia interior layer?
Deep fascia (or investing fascia) is a fascia, a layer of dense connective tissue that can surround individual muscles and groups of muscles to separate into fascial compartments.
What does deep fascia surround?
Deep fascia surrounds bones, muscles, nerves, and blood vessels.
What is deep fascia made up of?
Deep fascia is a layer of dense fibrous connective tissue which surrounds individual muscles, and also divides groups of muscles into fascial compartments. This fascia has a high density of elastin fibre that determines its extensibility or resilience. Deep fascia was originally considered to be essentially avascular.
Does deep fascia contain fat?
It contains fat, blood vessels, lymphatics, glands, and nerves. The deep fascia, also known as the investing fascia, envelops muscles and serves to support the tissues like an elastic sheath. It can provide fibrous sheaths for tendons, muscle origins and insertions, and the formation of retinacula (Figure 4-8).
Where is deep fascia found?
Deep fascia surrounds bones, muscles, nerves, and blood vessels. It is commonly has a more fibrous consistency and rich in hyaluronan as compared to the other subtypes. Deep fascia tends to be highly vascularized and contain well developed lymphatic channels.
What is the fascia layer?
A fascia is a layer of fibrous tissue. A fascia is a structure of connective tissue that surrounds muscles, groups of muscles, blood vessels, and nerves, binding some structures together, while permitting others to slide smoothly over each other.