Oxygenated blood flows through semilunar valves, whereas deoxygenated blood flows through AV valves
Indicate whether the statement is true or false
F
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What type of membranes line cavities that open to the outside and often contain mucous glands?
A. serous B. cutaneous C. synovial D. gobletal E. mucous
Which features are found only on thoracic vertebrae?
A. Costal facets and demifacets B. Spinous processes C. Transverse foramina D. Vertebral foramina E. Laminae
An inability to contract the trachealis muscle would
A) necessitate the Heimlich maneuver. B) lead to immediate respiratory failure. C) cause the lungs to collapse. D) interfere with the passage of large volumes of food. E) slacken both the false and true vocal cords.
Which of the following is the measure of the percentage of formed elements in the blood?
A) platelets B) hemoglobin concentration C) hematocrit D) anemia