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Grade 10 Bio > Circulatory system > Flashcards

Circulatory system Flashcards

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Biology 101 flashcards
1
Q

Purpose and function of the circulatory system

A

to move blood throughout the body
help tissues get oxygen and nutrience, and get rid of waste

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2
Q

organs

A

blood (not an actual organ)
heart
blood vessels
arteries
capillaries
veins

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3
Q

contents in blood

A

red blood cells - carry oxygen
white blood cells - make up the immune system
platelets - needed for clotting
plasma - blood cells nutrience and waste float in this liquid

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4
Q

heart

A

pumps blood around the body
inside chest in front of the lungs
slightly to the left of the body
made of four chambers
blood flows one way because of heart valves

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5
Q

parts of the heart

A

inferior vena cava
superior vena cava
right atrium
Right ventricle
left atrium
left ventricle
pulmonary artery
pulmonary vein
aorta

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6
Q

carries blood from legs feet and organ in the abdomen and pelvis

A

inferior vena cava

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7
Q

carries head near head, neck arm and chest

A

superior vena cava

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8
Q

one of the 4 heart chambers
receives blood low in oxygen and empties blood into the right ventricle

A

right atrium

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9
Q

pumps blood low in oxygen to the lungs

A

right ventricle

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10
Q

one of the 4 chambers of the heart receives blood full of oxygen from the lungs and empties it into the left ventricle

A

left atrium

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11
Q

pumps oxygen rich blood into the body

A

left ventricle

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12
Q

carry blood from heart to lungs, only arteries that carry oxygen poor blood

A

pulmonary arteries

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13
Q

blood vessels that transfer freshly oxygenated blood from lungs to left atrium of the heart

A

pulmonary veins

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14
Q

main artery that carries blood away from the heart to the rest of the body

A

aorta

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15
Q

heart valves

A

parts of the heart that act like doors. open and close to let blood flow from one area of the heart to another

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16
Q

three heart valves

A

pulmonary
mirtal
aortic

17
Q

pulmonary valve

A

3 leaflets
allow blood to pump from right ventricle to pulmonary artery
prevents blood from going backward

18
Q

Mitral and aortic (not needed)

A

Mitral
2 leaflets
blood from lungs to left atrium,
Aortic
3 leaflets left ventricle to aorta

19
Q

blood vessles

A

range of sizes and structures depending on role within the body
arteries, capillaries, veins

20
Q

arteries

A

distribute oxygen hormones and nutrients throughout body
muscular tube lined with smooth muscle

21
Q

capillaries

A

delicate blood vessels
transport blood nutrients and oxygen to cells in organs and body system

22
Q

veins

A

collect oxygen poor blood and return to heart

23
Q

illnesses and disease

A

high cholesterol
stroke
heart attack

24
Q

what is high cholesterol

A

un needed fats and lipids in blood vessels

25
Q

high cholesterol causes

A

lack of exercise, unhealth diet and drinking and smoking too much

26
Q

high cholesterol symptoms

A

decrease blood flow
bulky layer inside vessels
arteries are nor receiving enough blood
nutrients from heart and brain are limited

27
Q

high cholesterol tretments

A

eating health
being active
avoiding smoking and drinking
untreated plaque can build up and cause a heart attack of stroke

28
Q

what is a stroke

A

brain does not get enough blood, or blood vessel ruptures
blood vessel intruded by clot = ischemic
blood vessel ruptures, blood spill, and pressure on brain cells = hemorrhagic

29
Q

causes of a stroke

A

stress
high blood pressure

30
Q

stroke symptoms

A

blood flow gets limited and stops flowing to brain
lack of oxygen and nutrients in brain
brain cells instantly die

31
Q

stroke treatmemts

A

ischemic stroke thrombolytic drugs or mechanical thrombectomy to remove clot
hemorrhagic stoke surgery to prevent bleeding

32
Q

what is a heart attack

A

cut of of supply of blood and oxygen to the body
irreversible damage to muscle cells (after 30 mins)

33
Q

causes of heart attack

A

artery that sends blood and artery to heart is blocked
coronary artery disease
high blood pressure
lack of exercise
stress
smoking

34
Q

symptoms of a heart attack

A

shortness of breath
chest pain
light headedness
nauseas

35
Q

heart attack treatment

A

aspirin
clot busters
morphine
beta blocker
managing stress, activeness, healthy weight (prevent)

Grade 10 Bio (6 decks)

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