Question

give the correct answer..??​

Answer 1

$\underline\mathtt\blue{1.\:Answer:}$

• Plasma
• Platelets

$\underline\mathtt\blue{2. \:Answer:}$

Oxygenated blood flows from the lungs to the left atrium, which is on the left of the upper heart chamber. The atrium has a wall that is thin. When the left atrium softens, the blood in the left atrium is stored.

$\underline\mathtt\blue{3.\:Answer:}$

• The valves prevent the backward flow of blood.
• These valves are actual flaps that are located on each end of the two ventricles .
• They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.

$\underline\mathtt\blue{4.\: Answer:}$

Since ventricles have to pump blood into various organs and the pressure of the blood flowing in them is more than that of it in the auricles, therefore, ventricles have thicker muscular walls than the auricles.

$\underline\mathtt\blue{5.\:Answer:}$

• Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body.
• Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.

Explanation:

hehe..thnx for pts☺️..!

Answer 2

Answer:

Q1.In humans, it includes plasma (the liquid portion), blood cells (which come in both red and white varieties), and cell fragments called platelets. Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.

Q2 Oxygenated blood flows from the lungs to the left atrium, which is on the left of the upper heart chamber. The atrium has a wall that is thin. When the left atrium softens, the blood in the left atrium is stored.

Q3.The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.