Double Circulation and Portal System (Leaving Cert Biology): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
What type of pump is the heart?
What type of pump is the heart?
Double pump
Two circuits in double circulation
Two circuits in double circulation
Pulmonary circuit and systemic circuit
Pulmonary circuit function
Pulmonary circuit function
Pumps blood to lungs for oxygenation
Blood vessel exiting pulmonary circuit
Blood vessel exiting pulmonary circuit
Pulmonary artery
Blood vessel returning in pulmonary circuit
Blood vessel returning in pulmonary circuit
Pulmonary vein (oxygen-rich)
Systemic circuit function
Systemic circuit function
Pumps oxygenated blood around rest of body
Blood vessel exiting systemic circuit
Blood vessel exiting systemic circuit
Aorta
Blood vessel returning in systemic circuit
Blood vessel returning in systemic circuit
Vena cava (deoxygenated)
Advantage: Blood separation in double circulation
Advantage: Blood separation in double circulation
Oxygen rich and oxygen poor blood kept separate
High-pressure pumping advantage
High-pressure pumping advantage
Delivers O2 & nutrients quickly to all body parts
Portal system definition
Portal system definition
Blood pathway beginning and ending in capillaries
What Hepatic Portal Vein connects
What Hepatic Portal Vein connects
Stomach and intestines with liver
Substances transported by Hepatic Portal Vein
Substances transported by Hepatic Portal Vein
Glucose and amino acids