Describe the functions of the right side of the heart and the left side of the heart.
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Right: pumps deoxygenated blood to the lungs
Left: pumps oxygenated blood to the peripheral organs and tissues
Tunica media
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Middle layer of concentric sheet of smooth muscle and elastic fibers
Smooth muscle contraction > diameter decrease
Smooth muscle relaxation > diameter increase
,What roles does the lymphatic system play in returning fluid back to the blood?
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Hydrostatic and osmotic pressure operating at the capillary beds force
fluid out of the blood at the arterial ends of the capillary and cause most
fluid to be reabsorbed at the venous ends. However, the net outward force
does NOT equal the net inward force. Thus "extra" fluid remains within the
tissue spaces. This excess "tissue fluid" must be returned to the blood.
what happens during repolarization of the action potential?
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Caused by rapid reflux of K+ through potassium channels
What is the cardiac cycle?
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the sequence of electrical events and mechanical events that repeat with
every heartbeat
What are the physical characteristics of blood?
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, -Viscous(thicker than water)
-Slightly alkaline (ph of 7.35-7.45)
-Varies from scarlet(oxygen-rich) to dark red(oxygen-poor)
-Volume 5-6 L male; 4-5 L females
What is stroke volume (SV)?
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the amount of blood ejected from each ventricle during a single cardiac
cycle
The life span of RBCs is approximately
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90-120 days
Where is the main pacemaker located?
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sinoatrial node
What is end systolic volume (ESV)?
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the amount of blood remaining in each ventricle at the end of ventricular
systole
What is hemolytic disease of the newborn?
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Rh− mothers exposed to fetal Rh+ blood (often during delivery), and the
fetus's blood enters the mother's circulation.
The first child is born fine, but the mother has now formed anti-Rh
antibodies in the blood plasma so if they have a second child the mother's
anti-Rh, called hemolysins, lead to the destruction of fetal RBCs.
Postpartum, RBC's are produced in:
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Red bone marrow
Describe erythrocytes and their functions.
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-RBC'S, constitute 98-99% of formed elements
-Transports gases(oxygen and CO2)
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Right: pumps deoxygenated blood to the lungs
Left: pumps oxygenated blood to the peripheral organs and tissues
Tunica media
Give this one a try later!
Middle layer of concentric sheet of smooth muscle and elastic fibers
Smooth muscle contraction > diameter decrease
Smooth muscle relaxation > diameter increase
,What roles does the lymphatic system play in returning fluid back to the blood?
Give this one a try later!
Hydrostatic and osmotic pressure operating at the capillary beds force
fluid out of the blood at the arterial ends of the capillary and cause most
fluid to be reabsorbed at the venous ends. However, the net outward force
does NOT equal the net inward force. Thus "extra" fluid remains within the
tissue spaces. This excess "tissue fluid" must be returned to the blood.
what happens during repolarization of the action potential?
Give this one a try later!
Caused by rapid reflux of K+ through potassium channels
What is the cardiac cycle?
Give this one a try later!
the sequence of electrical events and mechanical events that repeat with
every heartbeat
What are the physical characteristics of blood?
Give this one a try later!
, -Viscous(thicker than water)
-Slightly alkaline (ph of 7.35-7.45)
-Varies from scarlet(oxygen-rich) to dark red(oxygen-poor)
-Volume 5-6 L male; 4-5 L females
What is stroke volume (SV)?
Give this one a try later!
the amount of blood ejected from each ventricle during a single cardiac
cycle
The life span of RBCs is approximately
Give this one a try later!
90-120 days
Where is the main pacemaker located?
Give this one a try later!
sinoatrial node
What is end systolic volume (ESV)?
, Give this one a try later!
the amount of blood remaining in each ventricle at the end of ventricular
systole
What is hemolytic disease of the newborn?
Give this one a try later!
Rh− mothers exposed to fetal Rh+ blood (often during delivery), and the
fetus's blood enters the mother's circulation.
The first child is born fine, but the mother has now formed anti-Rh
antibodies in the blood plasma so if they have a second child the mother's
anti-Rh, called hemolysins, lead to the destruction of fetal RBCs.
Postpartum, RBC's are produced in:
Give this one a try later!
Red bone marrow
Describe erythrocytes and their functions.
Give this one a try later!
-RBC'S, constitute 98-99% of formed elements
-Transports gases(oxygen and CO2)
