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3247011
Circulatory System
Descrição
A closed circulatory system in humans
Sem etiquetas
circulation
system
human
Mapa Mental por
mary.wheeler.yeh
, atualizado more than 1 year ago
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Criado por
mary.wheeler.yeh
mais de 8 anos atrás
30
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Resumo de Recurso
Circulatory System
Heart
Diagram:
Size of clenches fist
Between lungs, under sternum, tilted to left
4 chambers: 2 ventricles (receiving), 2 atria (pumping out)
Heart rate: Child - 90 -120, Adult - 72
lub-DUB sound made by valves opening and closing
Valves: prevent backflow of blood - move in 1 direction
Blood Vessels
Arteries
Arterioles
Walls: Very thick (high pressure)
Blood: Oxygenated
Direction: From Heart To Body
Veins
Walls: Thick (<Arteries)
Blood: Deoxygenated
Direction: To Heart From Body
Extras: Have valves
Venules
Capillaries
Walls: Thin - transfer nutrients, gasses, etc.
Blood: Both
Direction: Both
Blood
Plasma
RBC
WBC
Platelets
Cell fragments
Clotting
Fight harmful microbes and bacteria
Part of immune system
No nucleus - biconcave (more space for gasses)
Transports gas
Red - Haemoglobin pigment (iron component)
Transport medium
Clear
Fluid Tissue
Diseases
High Blood Pressure (Hypertension)
Heart Attack
Stroke
Transports - nutrients, oxygen to all body cells - waste substances to excretory organs
Kidneys, lungs, skin, colon
Anexos de mídia
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