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yes it covers the entire outside of the bone.
Placenta
are composed of blood vessels (hemangiomas) or lymph vessels (lymphangiomas), that lie beneath the skin's surface.
endocardium
All bones have foramen in them. These are canals or openings through which nerves and blood vessels go.
This is not because of pigment but because of a thick layer of blood vessels beneath the skin.
A contusion. This characterized by swelling and clotting of the subderal blood. You would probably call it a bruise.
Retinal hemorrhage is the abnormal bleeding of the blood vessels in the retina, the membrane in the back of the eye.
The earthorm has a closed circulatory system with five main blood vessels:Dorsal (above the digestive tract) - it moves blood forwardThe remaining four all move the blood to the rear of the earthworm: Ventral (beneath the digestive tract)Subneural Vessel (below the nerve cord)Right & Left Lateroneural vessels (either side of nerve cord)
The dark brown membrane of the eye is the choroid, it contains many blood vessels and supplies the eye with nutrients.
The mucus membrane of the eyes, the back, the chest, fingers, and toes.
Messentriesmesenteries