Three
Arteries actually have 5 layers, it is the veins that have 3. Arteries have: -the Outer coat -Elastic layer -Middle coat (thin) -Another elastic layer -Endothelium
The three layers are Tunica Intima, Tunica Media, Tunica Externa
The slab of volcanic rock that is formed when magma forces itself across rock layers is called a dike. This will eventually build into mountains.
Blood flows from the heart and aorta into large vessels called arteries, these arteries decrease in size as they move into tissues and are then called arterioles with just a few layers of cells. Arterioles then become capillaries that have a single cell layer. Capillaries then empty into venules, which then enter veins and return blood back to the heart to start the process over again!
Capillaries are only one cell layer thick, which allows for the exchange of nutrients and gases between the blood and tissues. This thin structure promotes efficient diffusion and transport across the capillary walls.
Three
Arteries actually have 5 layers, it is the veins that have 3. Arteries have: -the Outer coat -Elastic layer -Middle coat (thin) -Another elastic layer -Endothelium
smooth muscle
Arteries actually have 5 layers, it is the veins that have 3. Arteries have: -the Outer coat -Elastic layer -Middle coat (thin) -Another elastic layer -Endothelium
Nutrients in water can be transported via diffusion, advection, or vertical mixing. Diffusion involves the movement of nutrients from areas of high concentration to areas of low concentration. Advection refers to the bulk movement of water carrying nutrients. Vertical mixing occurs when different water layers mix, bringing nutrients from deeper to shallower waters.
The three layers are Tunica Intima, Tunica Media, Tunica Externa
The epidermis, or the outermost layer, contains no blood vessels.
The tiny blood-vesselthroughout the body that connect arteryand vein. Capillaries form an intricate network around body tissues in order to distribute oxygenand nutrients to the celland remove waste substances.
A dike.
dermis contains the bloods capillaries and connective tissue and nourishes the bottom layers of the epidermis.
The slab that forms when magma forces itself across rock layers is called a dike.