ACTUAL Exam Questions and CORRECT
Answers
The smallest of the formed elements and play an important role in preventing blood loss from a
traumatized area. - CORRECT ANSWER - Platelets
Urea, creatinine, uric acid, and bilirubin are part of the composition of ________ in plasma. -
CORRECT ANSWER - waste products
The respiratory therapist is assessing a patient with COPD and notes that the patient exhibits
distended jugular veins, hepatomegaly and pedal edema. What most likely is the reason this
patient has these signs of Cor Pulmonale? - CORRECT ANSWER - chronic hypoxemia
The atria are separated by a thin muscular wall called the - CORRECT ANSWER - interatrial
septum
The systemic system begins with the aorta and ends in the - CORRECT ANSWER - right
atrium
Blood is forced into the pulmonary artery and the aorta during __________, and the pressure in
these arteries rises sharply. - CORRECT ANSWER - ventricular systole
The mean blood pressure in mm Hg for the right heart is __________. - CORRECT
ANSWER - 25/0
The position of the body can significantly change the ________ portion of the lungs. -
CORRECT ANSWER - gravity-dependent
, The primary function of ___________ is to transport oxygen from the lungs to the tissues and to
transport carbon dioxide from the tissue cells to the lungs. - CORRECT ANSWER - red blood
cells
The ______________ protect the body against invading microorganisms, such as bacteria,
viruses, parasites, toxins, and tumors, and work to remove dead cells and debris from the body. -
CORRECT ANSWER - white blood cells
Constitutes 7% of plasma - CORRECT ANSWER - proteins
The heart is enclosed in the ____________ and extends obliquely between the second rib and the
fifth intercostal space. - CORRECT ANSWER - mediastinum
The primary function of the ___________ is to protect the heart, anchor the heart to surrounding
structures, and prevent the heart from overfilling. - CORRECT ANSWER - fibrous
pericardium
The modified tissue fibers of the ________ constitute the conduction system of the heart. -
CORRECT ANSWER - myocardium
Which of the following is not part of the arterial blood supply of the heart? - CORRECT
ANSWER - coronary sinus
When the ventricles contract, the tricuspid valve closes, and blood leaves the right ventricle
through the ________ and enters the lungs by way of the right and left pulmonary arteries. -
CORRECT ANSWER - pulmonary trunk
The pulmonary system begins with the pulmonary trunk and ends in the ___________. -
CORRECT ANSWER - left atrium
The ____________ is located in the medulla oblongata and governs the number of sympathetic
impulses sent to the vascular systems. - CORRECT ANSWER - vasomotor center