Question

What is the following transport?
A. Vena cava
B. Xylem
C. Pulmonary artery

Answer 1

The heart pumps blood via the circulatory system, which is made up of a network of arteries, veins, and capillaries. Its principal function is to supply the body with necessary nutrients, minerals, and hormones. The circulatory system, on the other hand, is in charge of collecting metabolic waste and toxins from the cells and tissues, which are either cleaned or removed from the body.

Complete answer:
Part A- Blood is received by the superior vena cava from the chest, upper limbs, head, and neck, while the inferior vena cava receives blood from the lower limbs, trunk, and viscera. Both the inferior and superior vena cava enter the right atrium, one of the four chambers of the heart. Blood departs the right atrium and flows into the right ventricle via the tricuspid valve. Blood exits the right ventricle via the pulmonary valve and travels to the pulmonary artery. The pulmonary artery then divides into left and right pulmonary arteries, each of which leads to the lungs where gaseous exchange occurs, where carbon dioxide is exchanged for oxygen and vice versa. Blood now returns from the lungs to the heart via the pulmonary veins.

Part B-The xylem is a difficult tissue to understand. Tracheids, vessels, xylem parenchyma, and xylem fibres are the four components of xylem. Gymnosperms are devoid of vessels.
The xylem's primary job is to transfer water from the roots to the rest of the plant. The main elements for conducting water are tracheids and vessels. The xylem fibres offer mechanical support, whereas the xylem parenchyma stores food and tannins as well as conducting water radially.

Part C- Pulmonary arteries branch off the pulmonary trunk and flow beneath the aorta to the human heart's right ventricle. The pulmonary artery is divided into two sections. One enters into the right lung, while the other goes into the left. It is the only artery from the heart to the lungs that delivers deoxygenated blood.
A pulmonary artery is a network of blood arteries that connects the heart and lungs and transports deoxygenated blood from the right ventricle to the lungs for oxygenation. It's one of the few arteries that carries blood that's been deoxygenated.

Note:
Features of circulatory system-
Blood, heart, blood arteries, and lymph make up the human circulatory system.
Blood is circulated in the human circulatory system in two loops (double circulation): one for oxygenated blood and the other for deoxygenated blood.
There are four chambers in the human heart: two ventricles and two auricles.
A body-wide network of blood arteries makes up the human circulatory system.