What causes RDS (respiratory distress syndrome) in premature babies?
A. Muscles associated with respiration are not strong enough to expand the thorax.
B. Respiratory centers of the brain are not functional until late in the fetal stage.
C. The lungs have not yet produced adequate numbers of alveoli for efficient gas exchange.
D. There is insufficient production of surfactant.
E. Bronchioles are constricted due to excess production of mucus.
D. There is insufficient production of surfactant.
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A partial dislocation of the articular surfaces of a joint is a ________.
Fill in the blank(s) with the appropriate word(s).
How do cellulose-containing foods, such as fruits and vegetables, help the process of digestion??
A) ?Encourage formation of acids in the stomach B) ?Provide essential enzymes C) ?Contribute to the bulk of feces D) ?Promote peristalsis
Which of the following skeletal system components is incorrectly paired?
A. Tendon; connects bone to bone B. Cartilage; covers joint surfaces C. Ligament; connects bones at joints D. Bone; protects delicate organs
Which term refers to the sum of all chemical processes that occur in the body?
a) metabolism b) anabolism c) catabolism d) auscultation e) palpation