Exam 1 A&P 2 Flashcards
The formed elements of blood include erythrocytes, leukocytes, and platelets.
True
Granulocytes include: neutrophils, monocytes and basophils
false
Erythropoiesis is stimulated by EPO, which is produced by hypoxia (low oxygen)-sensing cells in the bone marrow.
false
Each hemoglobin molecule in a RBC can hold 4 molecules of oxygen
true
The Atrioventricular node (AV node) sets the pace for the rest of the heart.
false
The SA node electrically connects the atria to the ventricles.
false
cardiac output is regulated by stroke volume and heart rate.
true
The term blood pressure usually refers to pressure of large veins near the heart.
false
Action potentials associated with the intrinsic conduction system exhibit an unstable resting potential resulting in a near constant slow, self depolarization
true
Both short-term and long-term regulation of blood pressure can occur by hormones.
true
The three factors that determine resistance is a blood vessel are blood viscosity, blood vessel diameter and blood vessel contractility
false
Blood flows through the vessels of the body because it is always moving from the higher pressure to lower pressure.
true
platelet
cell fragment that plays a major role in blood clotting; derived from megakaraocytes
erythrocytes
carry oxygen throughout the body
lymphocytes
major cells that are involved with acquired immune response
eosinophils
contains enzymes that digest parasitic worms
monocytes
they differentiate into macrophages; agranulocytes
neutrophils
the most abundant WBC