The _______ is responsible for closing the airway to the lungs when one swallows.
Which one of the following statements about colds is false?
Colds result from contact with other affected people.
Colds are caused by bacteria.
Chicken soup and antibiotics work equally well as treatment for colds.
There’s no immunity to colds.
The cardiovascular system consists of
blood, blood vessels, and the heart.
blood, blood vessels, the heart, lymph, lymph vessels, and lymphatic tissues.
the heart, blood vessels, and lymph vessels.
the heart and coronary arteries.
The most complicated part of the brain is the
The inner ear works with which brain structure to maintain equilibrium and balance?
What is blood serum?
Plasma with a clotting factor removed
Fluid remaining after plasma is removed from whole blood
Clear, yellowish fluid in which blood cells are suspended
The _______, which is situated beneath the pharynx, is responsible for producing vocal sounds.
In osteoporosis, the bones are soft and weak because
there’s infection of the bone marrow.
old tissue isn’t replaced quickly enough.
the dead bone separates from the good bone.
there’s too much calcium and phosphorus.
What is bradycardia?
Pain referred to the arm during a heart attack
A blood vessel conveying blood to the arm
Abnormally rapid heartbeat
Abnormally slow heartbeat
All of the following are factors in upper respiratory diseases except
lowered body temperature.
The condition often called the “silent killer” is also known as
coronary artery disease.
Which of the following are degenerative illnesses?
Chondrodynia and sternotomy
Rheumatoid arthritis and muscular dystrophy
Cardiac arrest and pulmonary thrombosis
Dehydration and polydipsia
Which of the following represents average blood pressure?
Between 60 and 100
What portion of the brain controls respiration?
The period of relaxation in the cardiac cycle is
Which of the following statements is not correct?
Sensory nerves are efferent nerves.
Nerves are made of sensory and/or motor fibers.
The medulla oblongata connects the spinal cord to the rest of the brain.
There are 12 pairs of cranial nerves.
Which term indicates a “true” heart attack?
Congestive heart failure
Bronchogenic carcinoma is cancer of the
Which of the following choices is a common symptom of anemia?
Swollen lymph nodes