Which is more elastic veins or arteries?
In arteries, the tunica media, which contains smooth muscle cells and elastic tissue, is thicker than that of veins so it can modulate vessel caliber and thus control and maintain blood pressure. Larger arteries are typically elastic and smaller arteries are more likely to be muscular.
What are examples of elastic arteries?
Elastic arteries are larger in size and have a relatively thick tunica media. Examples of elastic arteries include the pulmonary arteries and aorta plus its 3 major branches (left brachiocephalic, right common carotid & the right subclavian arteries).
What are the four types of arteries?
In its journey from the heart to the tissues, the blood passes through channels of six principal types: elastic arteries, muscular arteries, arterioles, capillaries, venules and veins.
What is the difference between muscular and elastic arteries?
Elastic arteries refer to an artery with a large number of collagen and elastin filaments in the tunica media, which gives it the ability to stretch in response to each pulse, while muscular arteries refer to a medium-sized artery that draws blood from an elastic artery and branch into “resistance vessels” including …
Which type of artery is the largest?
The largest artery is the aorta, the main high-pressure pipeline connected to the heart’s left ventricle. The aorta branches into a network of smaller arteries that extend throughout the body. The arteries’ smaller branches are called arterioles and capillaries.
Which of the following is characteristic of veins but not arteries?
Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don’t require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.
What is an example of a muscular artery?
A muscular artery (or distributing artery) is a medium-sized artery that draws blood from an elastic artery and branches into “resistance vessels” including small arteries and arterioles. Examples of muscular arteries include the radial artery, femoral artery and the splenic artery.
How many arteries are in the brain?
There are three cerebral arteries; anterior, middle and posterior. They each supply a different portion of the cerebrum. The anterior cerebral arteries supply the anteromedial portion of the cerebrum. The middle cerebral arteries are situated laterally, supplying the majority of the lateral part of the brain.
How many types of arteries are there?
There are two main types of arteries found in the body: (1) the elastic arteries, and (2) the muscular arteries. Muscular arteries include the anatomically named arteries like the brachial artery, the radial artery, and the femoral artery, for example.
What are examples of arteries?
Arteries are a type of blood vessel. They work to carry blood away from the heart….
- Right angular artery.
- Right ascending pharyngeal artery.
- Right posterior auricular artery.
- Right buccal artery.
- Right common carotid artery.
- Right external carotid artery.
- Right internal carotid artery.
- Right anterior inferior cerebellar artery.
How many main arteries do you have?
However, there are more than 20 major arteries throughout the body, which then branch out into many, many smaller arterioles and capillaries. This extensive network carries blood to all parts of the body. Each artery is made up of three layers: a smooth layer on the inside.
Where are the most important veins?
The largest veins are the superior and inferior vena cava, and both drain directly into the right atrium of the heart. All veins of the systemic circulation eventually drain back into one of these.
What are the two largest veins?
We’ll look at the two largest veins in the body, the superior and inferior vena cava, which enter the thorax from above and below, and empty into the right atrium of the heart through two separate openings.
Which is the largest artery and largest vein in our body?
1 Answer. The largest artery in the human body is Aorta. The largest vein in the body is called the vena cava.