Transcript No Slide Title - Belle Vernon Area School District

Heart
Blood
Vessels
Control of
the Heart
Heart
Diseases
Random
Heart
Questions
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What are the sounds of the heart
caused by?
Closing of the valves
What are the chambers called that
receive blood?
Atrium
What does a EKG measure?
The electric activity of the heart.
How is cardiac output measured?
Stroke volume or Heart rate
What is the bulk of the heart made
up of?
Myocardium
Which blood vessels have the lowest
blood pressure?
Vena Cava
Which blood vessels contain one
way valves?
Veins
Why are arteries thicker than veins?
To handle the higher blood pressure.
How is blood flow through the
capillaries controlled?
By the precapillary sphincter and
CO2 levels.
Which veins carry oxygenated
blood?
Pulmanory Veins
What does SA node stand for?
Sinoatrial node
Which cluster of cells are known as
the “pace maker” for the heart?
Sinoatrial node
What hormones increase the heart
rate and comes from the adrenal
gland?
Epinephrine
Which hormone decrease blood
pressure by stimulating loss of water
by excreting sodium?
Atrial natriuretic factor
Which receptors are present in the
major blood vessels that detect
changes in blood pressure?
Barorecptors
What is an aneurysm?
Bulging of an arterial wall.
What is it called when your heart
races up to 300 BPM?
Heart Flutter
What is hardening of the arteries
also known as?
Arteriosclerosis
What is elevated blood pressure
known as?
Hypertension
What is a leaky valve called?
Heart Murmur
The AV valve between the left
atrium and ventrical?
Bicuspid or Mitral valve
What are the blood vessels called
that go to and from the kidneys?
Renal
The name the nerve from the
medulla oblongata that regulates the
heart?
Vagus
What effects cardiac output?
Stroke volume and heart rate
The only artery to carry
deoxygenated blood?
Pulmonary Artery