(StraighterLine A&P II) questions and
answers 2025\2026 A+ Grade
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