The cornea does not have blood vessels; it receives nutrients via diffusion from the tear fluid at the outside and the aqueous humour at the inside and also from neurotrophins
supplied by nerve fibres that innervate itYes. It is due to several factors, one of them being chemokines; such as CXCL14.
yes all parts of the eye receive blood
No, They are avascular
Avascular tissue is that which does not contain blood vessels or lymphatics. Examples include: The epithelial layer of the skin, cartilage, and the cornea and lens of the eye. There are some types of connective tissue that are composed of elastic fibers that are avascular, too.
Connective tissue may or may not be avascular - it depends on the composition of the connective tissue. Avascular tissue is any tissue that does not contain blood vessels or lymphatics. Examples include epithelial tissue layers and the cornea. Elastic fibers, a form of connective tissue is avascular, but muscle is vascular.
no veins in cartilage.
the epidermis is avascular
avascular but innervated means that there is no blood supply but there is the presence of vessels
The cornea is avascular because it must be basically transparent in order to function.
Cornea
Avascular tissue is that which does not contain blood vessels or lymphatics. Examples include: The epithelial layer of the skin, cartilage, and the cornea and lens of the eye. There are some types of connective tissue that are composed of elastic fibers that are avascular, too.
Connective tissue may or may not be avascular - it depends on the composition of the connective tissue. Avascular tissue is any tissue that does not contain blood vessels or lymphatics. Examples include epithelial tissue layers and the cornea. Elastic fibers, a form of connective tissue is avascular, but muscle is vascular.
Tissue without capillaries is called avascular tissue. Examples of avascular tissue include:CartilageEpitheliaCorneaLensAll organs contain blood vessels.
Vascular just means that the tissue has a blood supply, in other words, it has blood vessels running through it. Avascular means that the particular tissue does not have blood vessels in it. For example, the cornea of the eye is avascular. This is one of the reasons it's an 'easy' transplant... because it doesn't bleed!
no veins in cartilage.
the epidermis is avascular
The cornea. Interestingly it is avascular and so can generally be transplanted without regard to tissue typing and without immunosupressants.
No. Avascular means that it does not get blood.
Yes, a Venus Flytrap is avascular.
all epithelial tissue is avascular