APES- Circulatory System an der University Of Witwatersrand | Karteikarten & Zusammenfassungen

Lernmaterialien für APES- Circulatory system an der University of Witwatersrand

Greife auf kostenlose Karteikarten, Zusammenfassungen, Übungsaufgaben und Altklausuren für deinen APES- Circulatory system Kurs an der University of Witwatersrand zu.

TESTE DEIN WISSEN

What is the difference between the double-loop CS found in amphibians and mammals ?

Lösung anzeigen
TESTE DEIN WISSEN

Amphibians ventricles are not completely separated and so there's a mixing of blood

Lösung ausblenden
TESTE DEIN WISSEN

What are the two types of circuits in the double-loop CS, their function and component ?

Lösung anzeigen
TESTE DEIN WISSEN

Systemic circuit

  • beings at the left ventricle
  • function = transport blood to body
  • components
    • Aorta
    • Pulmonary vein
    • Arteries
    • arterioles
    • capillaries

Pulmonary circuit

  • begins at the right ventricle
  • function= transport substances to lungs
  • components
    • capillaries
    • venules
    • veins
    • Pulmonary artery
Lösung ausblenden
TESTE DEIN WISSEN

Blood vessels

Lösung anzeigen
TESTE DEIN WISSEN

Arteries= carry oxygenated blood AWAY from heart (except pulmonary artery- deoxygenated)

Capillaries= join arteries to veins; main site of gaseous exchange

Vein= carry deoxygenated blood TOWARDS heart (except pulmonary vein- oxygenated)


Lösung ausblenden
TESTE DEIN WISSEN

Structures in babies heart that reduce the amount of blood flowing to baby's non-functional lungs

Lösung anzeigen
TESTE DEIN WISSEN

Foramen ovale

Ductus arteriosus

Lösung ausblenden
TESTE DEIN WISSEN

What are the Foramen ovale and Ductus arteriosus and what happens to these structures after birth ?

Lösung anzeigen
TESTE DEIN WISSEN
  1. structures that loot the amount of blood that goes to baby's non-functional lungs
  2. what happens:
    • Foramen ovale closes overtime due to changes in pressure as baby adjusts to breathing outside the womb
    • smooth muscle around Ductus arteriosus constricts forming a temp closure which goes on to be permanent
Lösung ausblenden
TESTE DEIN WISSEN

Blood and it's components

Lösung anzeigen
TESTE DEIN WISSEN

Blood = primary form of transport of substances around body

components:

Erythrocytes (RBC)- heaviest component in blood; NB role in transporting )2 around body via hemoglobin

Leukocytes (WBC)- from immune system; NB for fighting infection

Platelets= make blood clot

plasma= most abundant substance in blood; it's what enables blood to transport substances

Lösung ausblenden
TESTE DEIN WISSEN

what is the difference between the two different types of closed circulatory systems?

Lösung anzeigen
TESTE DEIN WISSEN

Single-loop CS

  • heart only pumps blood once

Double-loop CS

  • Blood pumps blood TWICE
    • once to lungs and again to body
Lösung ausblenden
TESTE DEIN WISSEN

What are the advantages of having a double-loop CS ?

Lösung anzeigen
TESTE DEIN WISSEN
  • enables blood to be pumped at high pressure which
  • allows blood to efficiently transport materials to tissues with high metabolic rates
Lösung ausblenden
TESTE DEIN WISSEN

Components of the respiratory system

Lösung anzeigen
TESTE DEIN WISSEN

blood vessels

blood

the heart

Lösung ausblenden
TESTE DEIN WISSEN

What sound does the heart make and what causes these sounds ?

Lösung anzeigen
TESTE DEIN WISSEN

"Lub-dub"

caused by the CLOSING  of the heart's valves:

"Lub" = closing of atrio-ventricular valves

"dub"= closing of semi-lunar valves

Lösung ausblenden
TESTE DEIN WISSEN

What causes a heart murmur?

Lösung anzeigen
TESTE DEIN WISSEN

a backflow of blood

  •    due to having a valve/multiple valves not working properly
Lösung ausblenden
TESTE DEIN WISSEN

What is the difference between the membrane potentials created by auto-rhythmic and contractile cells ?

Lösung anzeigen
TESTE DEIN WISSEN

Concentration of ions (specifically calcium ions)

  •  change in Ca+ concentration- ensures that out muscle cells don't hold a contraction for a long time (ensures it's able to contract AND then relax to ensure the continual beating of the heart
Lösung ausblenden
  • 11292 Karteikarten
  • 740 Studierende
  • 2 Lernmaterialien

Beispielhafte Karteikarten für deinen APES- Circulatory system Kurs an der University of Witwatersrand - von Kommilitonen auf StudySmarter erstellt!

Q:

What is the difference between the double-loop CS found in amphibians and mammals ?

A:

Amphibians ventricles are not completely separated and so there's a mixing of blood

Q:

What are the two types of circuits in the double-loop CS, their function and component ?

A:

Systemic circuit

  • beings at the left ventricle
  • function = transport blood to body
  • components
    • Aorta
    • Pulmonary vein
    • Arteries
    • arterioles
    • capillaries

Pulmonary circuit

  • begins at the right ventricle
  • function= transport substances to lungs
  • components
    • capillaries
    • venules
    • veins
    • Pulmonary artery
Q:

Blood vessels

A:

Arteries= carry oxygenated blood AWAY from heart (except pulmonary artery- deoxygenated)

Capillaries= join arteries to veins; main site of gaseous exchange

Vein= carry deoxygenated blood TOWARDS heart (except pulmonary vein- oxygenated)


Q:

Structures in babies heart that reduce the amount of blood flowing to baby's non-functional lungs

A:

Foramen ovale

Ductus arteriosus

Q:

What are the Foramen ovale and Ductus arteriosus and what happens to these structures after birth ?

A:
  1. structures that loot the amount of blood that goes to baby's non-functional lungs
  2. what happens:
    • Foramen ovale closes overtime due to changes in pressure as baby adjusts to breathing outside the womb
    • smooth muscle around Ductus arteriosus constricts forming a temp closure which goes on to be permanent
Mehr Karteikarten anzeigen
Q:

Blood and it's components

A:

Blood = primary form of transport of substances around body

components:

Erythrocytes (RBC)- heaviest component in blood; NB role in transporting )2 around body via hemoglobin

Leukocytes (WBC)- from immune system; NB for fighting infection

Platelets= make blood clot

plasma= most abundant substance in blood; it's what enables blood to transport substances

Q:

what is the difference between the two different types of closed circulatory systems?

A:

Single-loop CS

  • heart only pumps blood once

Double-loop CS

  • Blood pumps blood TWICE
    • once to lungs and again to body
Q:

What are the advantages of having a double-loop CS ?

A:
  • enables blood to be pumped at high pressure which
  • allows blood to efficiently transport materials to tissues with high metabolic rates
Q:

Components of the respiratory system

A:

blood vessels

blood

the heart

Q:

What sound does the heart make and what causes these sounds ?

A:

"Lub-dub"

caused by the CLOSING  of the heart's valves:

"Lub" = closing of atrio-ventricular valves

"dub"= closing of semi-lunar valves

Q:

What causes a heart murmur?

A:

a backflow of blood

  •    due to having a valve/multiple valves not working properly
Q:

What is the difference between the membrane potentials created by auto-rhythmic and contractile cells ?

A:

Concentration of ions (specifically calcium ions)

  •  change in Ca+ concentration- ensures that out muscle cells don't hold a contraction for a long time (ensures it's able to contract AND then relax to ensure the continual beating of the heart
APES- Circulatory system

Erstelle und finde Lernmaterialien auf StudySmarter.

Greife kostenlos auf tausende geteilte Karteikarten, Zusammenfassungen, Altklausuren und mehr zu.

Jetzt loslegen

Die all-in-one Lernapp für Studierende

Greife auf Millionen geteilter Lernmaterialien der StudySmarter Community zu
Kostenlos anmelden APES- Circulatory system
Erstelle Karteikarten und Zusammenfassungen mit den StudySmarter Tools
Kostenlos loslegen APES- Circulatory system