Human respiratory & circulatory system

Question 1

What 5 things make up the circulatory system?

Answer 1

Lungs, Heart, Veins, Arteries and Capillaries

Question 2

How many chambers does the heart have?

Answer 2

4

Question 3

What is the largest artery in the heart?

Answer 3

Aorta

Question 4

What is the correct name for the chest?

Answer 4

Thorax

Question 5

What do veins carry to the heart?

Answer 5

CO2

Question 6

What to arteries carry to the heart/body?

Answer 6

Oxygen rich blood

Question 7

What do PULMONARY Arteries carry?

Answer 7

Deoxygenated Blood

Question 8

What do PULMONARY Veins carry?

Answer 8

Oxygenated blood

Question 9

Which side of the heart is oxygen rich?

Answer 9

Left

Question 10

Which side of the heart is not oxygen rich?

Answer 10

Right

Question 11

Why is the left lung smaller than the right lung?

Answer 11

To allow room for the heart

Question 12

What is the first part of the respiratory system?

Answer 12

Nose & Mouth
(Entrance for oxygen, exit for CO2)

Question 13

How does the Trachea protect us from pathogens?

Answer 13

Mucus lining catches pathogens before they reach the lungs

Question 14

What does air pass through to reach the lungs?

Answer 14

Bronchus

Question 15

• Turn for direction of Oxygen travel to lungs -

Answer 15

Oxygen -> Trachea -> pass mucus lining -> pass Bronchus -> through Bronchiole -> pass Ducts -> Alveoli Ducts -> enter Individual Alveoli -> gas changes -> back up Trachea, Exhale

Question 16

What stops food going into the Trachea?

Answer 16

Flap in the Epiglottis

Question 17

How thick (in cells) are Alveoli?

Answer 17

1 cell thick

Question 18

What connects the heart and lungs?

Answer 18

Pulmonary arteries and Pulmonary veins

Question 19

How might an Arterial cut look?

Answer 19

Bright red, may squirt out of wound

Question 20

How may a Veinus bleed look?

Answer 20

Dark red, ooze from wound

Question 21

How many litres of blood does the body have?

Answer 21

5 Litres

Question 22

What is a normal blood pressure?

Answer 22

(Systolic number) –> 120/80 <– (Dystolic number)

Question 23

What does a Systolic number represent?

Answer 23

Blood LEAVING the heart

Question 24

What does a Dystolic number represent?

Answer 24

Blood ENTERING the heart

Question 25

What artery supplied blood to the head and neck?

Answer 25

Carotid Artery

Question 26

Which vein takes blood from the head and neck, back to the heart?

Answer 26

Jugular vein

Question 27

What is the scientific name for Red blood cells?

Answer 27

Erythrocytes

Question 28

Which "Cytes" help with blood clotting?

Answer 28

Thrombocytes