SCIENCE LESSON 1: Respiratory and Circulatory Systems Flashcards
It consists of organs in the body that help us to breath
Human Respiratory System
It is a complex network of blood vessels that reaches all parts of our body.
Human Circulatory System
Way of air to enter the body
Nostrils
Channels the air down the airways
Pharynx
Helps keep the lungs flexible
Pleural Membrane
Allows air to enter the right lung
Right primary bronchus
Protects the respiratory organs
Ribs
Moves the ribs during breathing
Intercostal Muscles
Helps pump the lungs
Diaphragm
Carries out 02-C02 gas exchange
Lungs
Purifies, humidifies the air
Nasal cavity
Lets air and food enter
Oral cavity
Keeps food from entering the airways
Epiglottis
Letting air pass through speech production
Larynx
Channels the air toward the left/right bronchi
Trachea
Allows air to enter the left lung
Left primary bronchus
Lets air reach the alveoli
Bronchioles
Site for 02-C02 exchange
Alveoli
Carry air into the lungs and branch into smaller bronchioles
Bronchial tube
What is the function of the Respiratory System?
gas exchange
What is the function of Diaphragm?
It contacts and relaxes during respiration to change the volume of the chest cavity
The lungs bring into the body, and eliminates from the body
oxygen, carbon dioxide
From what source do cells get their food?
Blood
Which type of blood vessels carries blood away from the heart?
Arteries
Why is oxygen important to blood and to the cells?
Oxygen is necessary for cell growth and energy
It is a circuit that provides blood flow from the heart to the lungs; and back to the heart
Pulmonary Circulation
It is a circuit that allows blood to flow from the heart to the rest of the body; excluding the lungs
Systemic Circulation
It is a circuit that strictly provides blood to the tissues of the heart
Coronary Circulation
It is the main organ of circulatory system
Heart
It carries oxygen and nutrients throughout the body
Blood
It is the pathway of blood
Blood vessels
Away from the heart
Artery
Towards the heart
Veins
Connective vessels that are connected to the body tissues
Capillaries
The correct circulation of blood
Lungs - Pulmonary Veins - Left Atrium - Left Ventricle - Aorta - Body Tissues - Vena Cava - Right Atrium - Right Ventricle