Soc 15 - The Structure Of The Heart

Question 1

Transportation

Answer 1

It helps to transport oxygen to the muscles, carbon dioxide out, and nutrients around the body.

Question 2

Scabs

Answer 2

It also is clever and clots blood around an open wound to create a scab, this is because of the PLATELETS in the blood.

Question 3

Body Temperature

Answer 3

The blood controls the body temperature with Vasodilation ans Vasoconstriction.

Question 4

Vasodilation

Answer 4

When viens swell up or dilate, the widening of the internal diameter of the blood vessels to allow increased blood flow

Question 5

Vasoconstriction

Answer 5

When viens shrink down, narrowing of the internal diameter of the blood vessel to slow down or constrict blood flow

Question 6

Cardio-respiratory system

Answer 6

The interaction of the heart and lungs to supply oxygen to muscles during exercise.

Question 7

Cardiovascular

Answer 7

To do with the heart, blood and blood vessels together.

Question 8

Vascular shunting

Answer 8

Your muscle need more blood for movement so move away from inactive organs to the active muscles, that is called vascular shunting . Your heart starts to beat faster and your blood vessels constrict to divert blood to muscles. Your reflexes get faster and your muscles may tense up

Question 9

Arteries

Answer 9

Take blood from the heart. Thick walls a it is high pressure as it is oxygenated. Widens to increase blood flow. Pulmonary artery carries deoxygenated blood from the heart to the lungs.

Question 10

Veins

Answer 10

Carries blood to the heary. Thinner walls as it is lower pressure blood in there. Contains valves to het deoxygenated blood to the heart. Pulmonary veim carries oxygenated blood from the lung to the heart.

Question 11

Cappileries

Answer 11

Microscopic vessels that are one cell thick. At one end they carry oxygenated blood to transfer oxygen and nutrients to muscles. At the other end, deoxygenated blood is tranferred to the veins, picking up waste products and dispose them around the body. This is where gaseous exchange takes place.

Question 12

All parts of the heart

Answer 12

Aorta, pulminary artery, pulminary vein and vena cava

Semilunar valve, tricuspic valve and bicuspic valve

Left atrium, right atrium, left ventricle and right ventricle

Question 13

2 phases of pumping blood

Answer 13

Systolic phase and diastolic phase

Question 14

Systolic phase

Answer 14

Blood pumped from both atria into ventricles, then ventricles contract, deoxygenated blood out right ventricle to the lungs. Oxygenated blood out from left ventricle via fhe aorta to the body

Question 15

Diastolic phase

Answer 15

When the heart is relaxing and refilling the atria with blood

Question 16

What is blood pressure

Answer 16

Measure of the force that your heart uses to pump the blood around your body