pace maker-capillaries Flashcards by Olivia Torres

Q

where is a pacemaker

A

right atrium

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Q

other names for pacemaker

A

S-A node

Purkinge Fibers

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Q

Tachycardia

A

greater than 100 beats per min

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Q

brady cardia

A

less than 60 beats per minutes

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Q

job of pacemaker

A

regulate beat

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Q

average heart beat

A

72 bpm

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Q

hypertension

A

high blood pressure

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Q

hypotension

A

low blood pressure

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Q

2 blood pressures

A

systole and diastole

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Q

systole

A

systolic pressure. top #

pressure of ventricles pumping

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Q

diastole

A

diastolic pressure. bottom #. pressure of atrias pumping

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Q

what low blood pressure

A

less than 120/70

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Q

high blood pressure

A

over 120/70

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Q

what can affect bp

A

salt,mweight, smoking, lack of excercise, genetics

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Q

what is the danger of high bp

A

stroke

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Q

danger of low bp

A

tired, feint

Q

where are arteries located

A

deep within the body

Q

what kind of walls do arteries have

A

elastic

Q

do arteries have valves

A

no

Q

what kind of muscle do arteries contain

A

smooth

Q

what blood vessels are used for blood pressure

A

arteries

Q

mini arteries

A

arterioles

Q

largest artery

A

aorta

Q

where do arteries carry blood

A

away from the heart

what thins blood

asprin

pulse

alternating contractions/relaxations

Where do veins carry blood

against gravity to the heart

where are veins located

near the surface of the skin

what kind of walls do veins have

non elastic

mini veins

venules

do veins have valves

no

what are the largest veins

superior and inferior vena cava

where are capillaries located

next to every cell in the body

what kind of walls do capillaries have

one cell thick (thin)

what process do capillaries aid in

diffusion

diffusion

connects arteries and venules. CO2 and O2 diffuse

broken capillaries

bruise