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Biology 12 > Circulatory System > Flashcards

Circulatory System Flashcards

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0
Q

What is the foreman ovale?

A

Oval opening between 2 atria that shunt blood into left atrium. BYPASSES THE LUNGS

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1
Q

List 5 fetal modifications

A
  • foreman ovale
  • ductus arteriosus
  • umbilical arteries
  • placenta
  • umbilical vein
  • ductus venosus
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2
Q

What is the ductus venosus?

A

Bypasses liver, returning blood to the heart. Enters inferior vena cava

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3
Q

What is the ductus arteriosus?

A

Arterial duct that allows any blood that does enter the right ventricle to be pumped into the PULMONARY TRUNK then into the aorta

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4
Q

What is the umbilical artery?

A

(Deoxygenated blood)

Blood within the aorta travels to various branches that connect to the umbilical arteries leading to the PLACENTA

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5
Q

What is the placenta?

A

Where gas and nutrient exchange between maternal blood and fetal blood occurs

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6
Q

What is the umbilical vein?

A

(Oxygenated) Carries oxygen and nutrient rich blood to the fetus, enters the liver and then joins the hepatic vein.

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7
Q

What are the vessels that leave and enter the small intestine?

A

Mesenteric vein

Mesenteric artery

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8
Q

From the mesenteric artery, where would blood go?

A

Mesenteric capillary-> mesenteric vein

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9
Q

From the mesenteric vein, describe the path blood would take to get back to the heart.

A

Mesenteric V-> hepatic portal vein—>liver capillaries->hepatic V-> inferior vena cava-> right atrium-> tricuspid valve-> right ventricle-> pulmonary valve-> pulmonary artery-> lung capillaries-> pulmonary vein-> left atrium->mitral valve-> left ventricle-> aortic valve-> aorta-> brachiocephalic A-> carotid A->brain capillaries-> jugular vein

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10
Q

What is the valve blood passes to get from the right atrium to the right ventricle?

A

Tricuspid valve

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11
Q

What is the valve that blood passes to get from the right ventricle to the pulmonary artery?

A

Pulmonary valve

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12
Q

What is the valve that blood passes to get from the left atrium to left ventricle?

A

Mitral valve

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13
Q

What is the valve that blood passes to get from the left ventricle to the aorta?

A

Aortic valve

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14
Q

What are the things that make so blood can’t go back the way it came in the heart?

A

Chordae tendineae

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15
Q

What are the three arteries that Lear the aorta in humans?

A

Brachiocephalic artery
Left common carotid artery
Left subclavian artery

16
Q

What is the mitral valve?

A

The valve between left atrium and ventricle

17
Q

What is the tricuspid valve?

A

Valve between right atrium and ventricle

18
Q

What is the vein that leaves the stomach?

A

Gastric vein

19
Q

Which vein does the gastric vein join to? What do they become?

A

Splenic vein= gastrosplenic vein

20
Q

What are the vessels that leave and enter the kidneys?

A

Renal vein

Renal artery

Biology 12 (15 decks)

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