Working from the outermost layer, the epidermis has no blood supply. The Dermis contains 2 main layers (plexi) of blood vessels, which can be referred to as the superficial dermal plexus and deep dermal plexus.
More detail: The dermis can be split up into two layers, the papillary dermis and reticular dermis. One vascular plexus is situated in each. The superficial vascular plexus lies in the papillary dermis and is made mostly of capillaries. Capillary loops extend upwards towards (but not into) the epidermis and supply it with nutrients etc. The deep vascular plexus lies within the reticular dermis and is made mostly of venules, which drain the blood away from the skin back towards the heart.
Larger vessels like veins and arteries are found in the subdermis a.k.a. subcutaneous layer and deeper (e.g. muscle).
Stratum basale
Connective tissues are based on fibrous proteins, and include bones, cartilage, tendons, ligaments, and adipose tissue (stores fat). Blood and lymph are generally classified as "fluid connective tissue" although they do not have a fixed structure and are normally constrained by epithelial cells, such as those lining the blood vessels.
Loose connective tissue.1. Supports skin2. Organ expansion. (ex. heart, lungs, blood vessels, bladder.)3. Store fat (Adipose tissue)-Ex. To insulate, store energy, and protect. (Around kidneys, the heart, and underskin.)
All connective tissue arise from mesenchyme, meaning they all come from a common origin.
connective tissue
connective tissue
This is known as areolar tissue. It is specialized to help keep the organs, nerves, and blood vessels working well and keep them protected.
No blood cells- avascular
Connective tissue flows through the heart and blood vessels.
Bone is the most rigid and dense of the connective tissues.
Examples of connective tissues include bone, ligaments, tendons, cartilage, and adipose (fat) tissue.
connective tissue
blood
"connective tissue": adipose, cartilage, blood, various dense & loose connective tissues
axons, blood vessels, connective tissue, Schwann cell.
axons, blood vessels, connective tissue, Schwann cell.
blood vessels, lymphatic vessels, and connective tissue
The hypodermis, or subcutaneous tissues, is primarily made up of loose connective tissue and fat. It can also contain blood vessels.