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The structure and function of the respiratory system, The structure and…
The structure and function of the
respiratory system
Pathway of Air
Inhale
Mouth/Nasal Passage >> Trachea >> Bronchi >> Bronchioles >> Alveoli
Exhale
Alveoli >> Bronchioles >> Bronchi >> Trachea >> Mouth/Nasal Passage
Composition of Air + Breathing Volumes
Short + long term effects of exercise
Gaseous Exchange
Between muscles/tissue and capillary
Oxygen
Aorta >> Capillaries >(diffusion)> muscle
CO₂
Muscle >(diffusion)> Capillaries >> Vena Cava
Between Alveoli and Capillary
Oxygen
Alveoli >(diffusion)> Capillaries >> Pulmonary Vein
CO₂
Pulmonary artery >> capillaries >(diffusion)> Alveoli
Diffusion
Large Surface Area
One cell Thick
Semi-permeable membrane
The structure and function of the
cardiovascular system
Structure of the heart
Split into 4 chambers
Left
Atrium
Receives oxygenated blood from the pulmonary vein
Right Atrium
Receives deoxygenated blood from the Vena Cava
Right Ventricle
Pumps blood to the pulmonary artery
Left Ventricle
Pumps blood to the Aorta
Split by the
septum
in the middle
Valves
Bicuspid (left)
Left semi-lunar valve
Tricuspid (right)
Right semi-lunar valve
Pathway of blood
Blood vessels
Function
Vasodilation
Vasoconstriction
Structure
Veins
Arteries
Capillaries
semi-permeable membrane allow gas exchange
Smallest lumen
Function of RBCs, WBCs, Platelets
RBC
WBC
Platelets
