SCIENCE Circulation And Respiration Flashcards
What are the functions of the cardiovascular system?
- remove waste products
- gaseous exchange
- boosts immunity
- distributes blood through blood vessels
This part of the cycle carries oxygen depleted blood away from the heart,to the lungs and back to the heart
Pulmonary circulation
This is the part that carries oxygenated blood away from the heart and to other parts of the body
Systemic circulation
This type of circulation provides the heart with oxygenated blood so it can function properly
Cornonary circulation
Liquid portion of the blood that contains:
Clotting factors
Hormones
Antibodies
Dissolved gases
Nutrients
Wastes
Plasma
*Carry hemoglobin and oxygen
* live approximately 120 days
Erythrocytes/ red blood cells
- fight infection
Leukocytes/ white blood cells
*Are cell fragments that are formed in the bone marrow
* responsible for blood clotting by sticking together via protein dibers called fibrin
Thrombocytes/ platelets
- largest and thickest type of blood vessels
- carry oxygenated blood away from the cappillaries
Arteries
- carry deoxygenated blood away from cappillaries back to the heart
- veins conatin and muscukar layer but less elastic and muscular then arteries
Veins
- the smallest blood vessels
- is where the exchange of nutrients and gases occurs
Capillaries
- size of a closed fist
- APEX: blunt rounded point of cone
- BASE: flat part at opposite of end of cone
Heart
Located in the thoracic cavity
Heart
Protects the heart( a double-walled sac encloses the heart)
Pericardium
One of the four chambers of the heart * receiving chambers
2 atria/ auricles
One of the four chambers: pumping chambers
2 ventricles
Major artery of the heart is the veins
( tru or fals)
False
Correct Ans: aorta
Major vein of the heart is the bronchi and capillaries
( tru or fals)
False
Correct ans: * superior vena cava
* inferior vena cava
What is the main function of the respiratory system?
It supplies the body with oxygen and dispose of carbon dioxide
- breathing
- process of inhaling and exhaling
Pulmonart ventilation
- gas exhange
- haopens within the lungs where oxygen is added to the blood and carbon dioxide is removed
Respiration
Gas exhange between the environment and the lungs
External respiration
gas exchange between systemic blood vessels and tissues
Internal respiration
Occurs in the mitochondrion (powerhouse of the cell)
Cellular Respiration
Provides an airway for respiration
Moistens and warms air
Nose
Refers to the interior of the nose
Nasal Cavity
Funnel-shaped passageway for both food and air
Pharynx
*Voice box
*Prevent food and drink from entering the trachea
Larynx
Windpipe
C-shaped cartilage rings keep airway open
Trachea
Windpipe
C-shaped cartilage rings keep airway open
Trachea
pair of spongy, air-filled organs located on either side of the chest
Lungs
