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biology > The Circulstory System/blood/The Heart > Flashcards

The Circulstory System/blood/The Heart Flashcards

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AP® Biology flashcards
1
Q

Plasma

A

Liquid part of blood

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2
Q

Red blood cells

A

Transport/Carry oxygen

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3
Q

White blood cells

A

Fight infection

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4
Q

Platelets

A

Clotting

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5
Q

Serum

A

Plasma from which clotting proteins have been removed

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6
Q

Lymphocytes

A

Produce antibodies

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7
Q

Monocytes

A

Engulf microorganisms

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8
Q

Open circulation system

A

Heart pumps blood into vessels that are open ended

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9
Q

Closed circulation system

A

Blood remains in a continuous system of blood vessels

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10
Q

Arteries

A

Carey blood away from the heart

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11
Q

Veins

A

Carry blood to the heart

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12
Q

Capillaries

A

Tiny blood vessels linking arterioles and venules

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13
Q

Arterioles

A

Connect arteries and capillaries

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14
Q

Venules

A

Connect capillaries to the veins

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15
Q

Blood pressure

A

The force that blood exerts against the wall of a blood vessel

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16
Q

Pulse

A

The alternate expansion and contraction of arteries

17
Q

Valves

A

Control the direction of blood flow

18
Q

Systemic circuit

A

Pumps oxygenated blood to the head, trunk and limbs and back to the heartbeat

19
Q

Pulmonary circuit

A

Pumps deoxygenated blood to lungs and back to the heart

20
Q

Portal system

A

A blood pathway that begins and ends in capillaries

21
Q

Hepatic portal system

A

Connects the stomach and intestines with the liver

22
Q

Diastole

A

When the heart chambers relax

23
Q

Systole

A

When the heart chambers contract

24
Q

Lymphatic system

A

A secondary transport system consisting of a one way system of vessels that collects and returns excess tissue fluid to blood system

25
Q

Lymph vessel

A

Ensures lymph travels one way by the use of valves (they also contain lymph nodes)

26
Q

Lymphatic system structure

A

Lymph vessels, lymph nodes, lymph

biology (34 decks)

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