The lymphatic system is comprised of thousands and thousands of white blood cells that fight off infection and foreign substances that may invade the bloodstream (or bodily fluids) that includes pollen and other allergens, also they fight against viruses and bacterias, etc. On the other hand, the cardiovascular system is the network of major arteries that bring oxygenated blood from the lungs to the heart and then the blood goes to the other areas of the body.
Like veins of the blood vascular system, the lymphatic collecting vessels have three tunics and are equipped with valvesCarry lymph. Yea varily.Lymphatic vessels need a proper method of transport so they can reach their destination. They are not pumped, but pushed along by skeletal muscle contractions, and valves are in place to prevent fluid from flowing backward. They resemble veins, because the vessels need to be small enough to fit within the body along with the other arteries and veins, which are small enough to be in proximity.
Comparison between Lymph Vessels and Veins.Similarities.both have an interconnecting network of progressively larger vessels;both transport fluids to the heart;the larger lymph vessels have the same structure as veins, i.e. their walls have the same three layers;both have semi-lunar valves to prevent any backward flow of blood;the flow of fluid is slow but steady and at low pressure;the fluid is deoxygenated;like blood capillaries, the walls of lymph capillaries are composed of a single thin layer of squamous endothelium.Differences.the walls of lymph vessels are musch thinner and more transparent;the muscle layer in lymph vessel is much less developed, but there is more connective tissue;blood capillaries form a continuous, open circuit, whereas lymph capillaries end blindly in the tissues;lymph capillaries have a larger diameter than blood capillaries;lymph capillaries have walls which are more permeable than the walls of blood capillaries. Consequently, larger molecules (such as proteins) are able to diffuse through them.
yes
veinsAnswerArteries are the blood vessels that carry blood away from the heart, not veins. Veins are the blood vessels that carry blood towards the heart. The only exceptions being the pulmonary and umbilical veins, both of which carry oxygenated blood.
The three types of blood vessels are the same in both cats and humans: veins, arteries and capillaries.
No, only venous vessels have valves. Valves in veins help prevent the backflow of blood and aid in promoting blood flow back to the heart. Arterial vessels do not have valves because blood in arteries is under higher pressure and flows away from the heart.
In the circulatory system, veins are blood vessels that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart.
Structural similarities between artries and veins are1) The walls of arteries and veins both contain collagen which makes them strong and durable.2) They both contain elastic fibres which allow them to stretch and recoil.3) Their walls contain smooth muscles that enable them to constrict and dilate.4) They are both three - layered.
Veins are assisted in maintaining one way flow by the skeletal muscles' contrations. Valves also ensure one-way flow.
The major lymphatic duct is the Thoracic Duct which returns lymph from the the whole body except from the right side of the head and the right arm/shoulder. These parts are drained by the Subclavian Trunk. Both vessels drain into the junction of the subclavian and jugular veins on their respective sides. Hope this helps! Aj :) The right lymphatic duct drains lymph from the right upper extremity, head, and thorax. This duct is not present in all. For those with no right lymphatic duct, the lymph trunks drain directly into the veins of the neck
The larger lymphatic vessels are most similar in structure to veins, as they both have valves to prevent backflow and are composed of three layers: tunica intima, tunica media, and tunica adventitia. However, lymphatic vessels have thinner walls and lack a continuous layer of smooth muscle like veins do.