Bio Demystified Ch 16 Circulatory System
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37 Terms
Arteries
____ carry blood AWAY from the heart and are often shown as red to represent the fresh oxygen.
Veins
____ carry blood BACK to the heart, and are often shown blue to represent the depleted oxygen.
3 layers
The largest arteries have ____ layers of tissue
Capillaries
What are the blood vessels of exchange called?
Capillaries
What type of blood vessel connects arteries to veins?
Venules
What are the smallest veins called?
1x cell thick
Capillary walls are ______ thick to allow for good diffusion
Pulmonary Circuit
What is the circulation loop where blood goes from the heart to the lungs called?
Systemic Circuit
What is the circulation loop of blood going form the heart to the organs/body called?
True
True or false
The Atria of the heart are superior to the Ventricles
Right Atria
The Superior Vena Cava and Inferior Vena Cava empty into the ____ _____
the Atria
What part of the heart are the receiving chambers, and have low pressure?
from veins of the body
The Right Atria receives deoxygenated blood from ____________
To the Right Ventricle out to the lungs (pulmonary circuit)
After the Right Atria receives deoxygenated blood, where does the blood go next?
To the Left Ventricle and out to the body (systemic circuit)
After blood completes the Pulmonary Circuit and is Recieved by the Left Atria, where does it go next?
Atria
Which parts of the heart squeezes first?
Sinoatrial Node
What is the main pacemaker in the heart called?
Right Atria
Where in the heart is the Sinoatrial Node found?
Cardiocytes
What special cells that behave like neurons is the Sinoatrial Node made of?
Atrioventricular Node
What is the heart’s backup pacemaker called?
Cardiac Cycle
What is the term for 1x complete cycle of heart contraction and relaxation called?
Systole
What is the term for when Ventricles are contracted?
Diastole
What is the term for when Ventricles are relaxed?
The Aorta
What is the largest artery in the body?
Aortic Arch
Where in the heart is blood pressure the highest?
Blood Pressure, and it’s just a blood pressure cuff lmao
What does a sphygmomanometer measure, and what is it?
systolic (contracted)
—-—-
diastolic (relaxed(
What dos the fraction in BP mean?
eg 90/120
Hypertension
When blood pressure is over 140/90, what is the term?
Aneurysms and Arteriosclerosis
What are the potential effects of Hypertension?
Hypotension
What is it called when blood pressure is below 90/60?
Dizziness, fainting, shock
What are the possible effects of Hypotension?
Arteriosclerosis
What condition happens bc of high BP, and means “hardened arteries” bc of calcium deposits in arteries and can impede normal blood flow?
Artherosclerosis
What condition describes the building up of plaque under BV lining bc of too much lipids in diet and can cause a heart attack?
Myocardio Infarction
What is another term for a heart attack
White Blood Cells
What are Leukocyte’s
Cell fragments
What are platelets?
Red Blood Cells
I what are Erythrocytes?
Note 
Flashcards (50)