Chapter 1 - Respiratory & Circulatory syatems

What is the advantage of having many blood vessels around the alveoli?

• It helps transport oxygen quickly around the body.

• It helps the alveoli stay in place.

• It makes the lungs heavier.

• It prevents air from escaping.

According to the diagram, what is the correct order in which oxygen travels from the nose to the blood?

• Nose → Trachea → Bronchi → Bronchioles → Alveoli in the lungs → Blood

• Nose → Bronchi → Trachea → Bronchioles → Alveoli in the lungs → Blood

• Nose → Bronchioles → Bronchi → Trachea → Alveoli in the lungs → Blood

• Nose → Alveoli in the lungs → Bronchioles → Bronchi → Trachea → Blood

What does the word 'sacs' mean as used in the passage?

• Small, bag-like structures

• Referring to the alveoli in the lungs

• Large, empty spaces

• Fluid-filled cavities

What does the word 'exchange' mean as used in the passage?

• The process of swapping or trading one thing for another

• A type of transaction

• A method of communication

• A form of negotiation

What happens to the diaphragm and ribs when we breathe in?

• The diaphragm moves upwards and the ribs move downwards and inwards.

• The diaphragm moves downwards and the ribs move upwards and outwards.

• The diaphragm stays still and the ribs do not move.

Which part of the whale's respiratory system is also known as the nostril?

• Trachea

• Blowhole

• Lung

• Diaphragm

Which additional part is present in the cat's respiratory system that is not labeled in the lizard's system?

• Air sacs

• Blowhole

• Diaphragm

• Lung

What is the main function of our circulatory system?

• To transport useful substances such as nutrients and oxygen to all parts of the body and remove waste such as carbon dioxide

• To digest food

• To control movement

• To produce hormones

What does the word 'release' mean as used in the context of the circulatory system?

• To hold tightly

• To let go or set free

• To increase

• To block

What do arteries do?

• Carry blood rich in oxygen away from the heart

• Carry blood poor in oxygen towards the heart

• Join arteries and veins