1. Which of the following ions is most abundant in extracellular fluid?
A.) Calcium
B.) Chloride
C.) Sodium
D.) Potassium
: Ans- Sodium
2. Which of the following does the respiratory system eliminate when there is
an excess of hydrogen ions in the body?
A.) Oxygen
B.) Carbon Dioxide
C.) Bicarbonate
D.) Lactic Acid
: Ans- Carbon Dioxide
3. Which of the following tissues attaches muscle to bone?
A.) Fascia
B.) Tendon
,C.) Ligament
D.) Bursa
: Ans- Tendon
4. In a normally functioning cardiovascular system where does a heartbeat
originate?
A.) atrioventricular node
B.) the bundle of his
C.) purkinje fibers
D.) sinoatrial node
: Ans- Sinoatrial node
5. Blood cells are produced by which of the following?
A.) Red bone marrow
B.) Lamellae
C.) Lacunae
D.) Yellow bone marrow
: Ans- Red bone marrow
6. Which of the following is the iron-containing component of a red blood cell?
A.) Fibrinogen
,B.) Albumin
C.) Hemoglobin
D.) Erythropoietin
: Ans- Hemoglobin
7. Which of the following is the function of angiotensin II in the regulation of
blood pressure?
A.) Vasoconstriction
B.) Vasodilation
C.) Increased heart rate
D.) Decreased heart rate
: Ans- Vasoconstriction
, 8. Which of the following hormones or enzymes is involved in fluid balance
and is produced by the kidneys?
A.) Renin
B.) Aldosterone
C.) Antidiuretic hormone
D.) Angiotensin I
: Ans- Renin
9. Which of the following may indicate a hypersecretion of thyroid hormones?
A.) Weight loss
B.) Bradycardia
C.) Cold intolerance
D.) Letharg
: Ans- Weight loss
10. Peripheral vasodilation results in heat loss through which of the following
processes?
A.) Conduction
B.) Convection
C.) Radiation
D.) Evaporation