(STRAIGHTERLINE A&P II) QUESTION AND
ANSWERS 2025-2026
Viscosity of Blood? - correct answer-twice as thick as water
How long does it take for a drop of blood to circulate through the entire system? - correct answer-20-
60 seconds
What is the composition of Blood - correct answer-55% plasma, 45% formed elements,
What are the fucntions of blood? - correct answer--
Moves regulatory and processed molecules, gasses, waste, and nutrients
-Regulats pH and osmosis process
-Maintain body temperature
-Protect against foreign substances
-Assist in clotting
What is the composition of plasma? - correct answer-91% water
7% proteins
2% other solutes
What proteins are found in blood plasma? - correct answer-albumin, globulins, fibrinogen
What solutes are found in blood plasma? - correct answer-
Ions, nutrients, waste products, gasses, regulatory substances
What are two blood disorders - correct answer-Anemia and sickle-cell disease
What is sickle-cell disease? - correct answer-
an abnormal red blood cell that has a crescent shape and an abnormal form of hemoglobin
, What is anemia? - correct answer-a decrease in the oxygen-carrying ability of the blood
How much blood does the heart pump per minute? - correct answer-~5 1/4 Quarts per minute
What are action potentials? - correct answer-
Sequence of electrical changes when a nerve membrane receives a stimulus that exceeds a threshold
What is depolarization? - correct answer-Loss of an electrical charge on the surface of a membrane
What is Repolarization? - correct answer-Gain of electrical charge on the surface of a membrane
What are the functions of the heart? - correct answer-
generating blood pressure, routing blood, ensuring one-way blood flow, regulating blood supply
What are the two divisions of the heart? - correct answer-Pulmonary Circuit and Systemic Circuit
What are the components of the heart? - correct answer-Pericardium, Heart Wall, Chambers, Valves
What is the pericardium? - correct answer-Double-
walled sac that surrounds the heart and reduces friction between pericardial membranes
What is the heart wall? - correct answer-Three protective layers of tissue
What to chambers of the heart do? - correct answer-Receive and return blood from and to the body
What is the purpose of heart valves? - correct answer-prevent back flow of blood, ensure one-
directional
What are the four valves of the heart? - correct answer-
The tricuspid and pulmonary valves on the right side, and the mitral and aortic valves on the left side.