Fluid escaping from blood or lymphatic vessels into tissues or spaces is termed:
A) pleurisy
B) atelectasis
C) asphyxia
D) effusion
D
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Which of the following statements related to the "ON pathway" of the visual system is correct?
A. Bipolar cells spontaneously depolarize in the absence of input from photoreceptor cells. B. Glutamate receptors on bipolar cells are excitatory. C. Only cones are associated with bipolar cells of the "ON pathway," rods are not. D. Bipolar cells fire action potentials only when bright light strikes the photoreceptors linked to them. E. Bipolar cells hyperpolarize in the absence of input from photoreceptor cells.
Answer the following statements true (T) or false (F)
1. The lower abdominopelvic area contains the left iliac region. 2. The middle abdominopelvic area contains the umbilical region. 3. The epigastric, umbilical, and left lumbar regions are all in the middle abdominopelvic area. 4. Homeostasis refers to the relatively constant internal environment the body tries to maintain. 5. A negative feedback loop is one way the body tries to maintain homeostasis.
Prolonged thyroid hyposecretion leads to __________, a condition characterized by weight gain, slow metabolism, and tissue swelling.
Fill in the blank(s) with the appropriate word(s).
Which of the following best describes the Vasalva maneuver?
A. It increases pressure in the abdominal cavity and helps to expel abdominal contents. B. It protects the lungs from overinflation. C. It prevents food and drink from entering the trachea. D. It is used to dislodge foreign matter from the airway. E. It prevents food and drink from entering the nasal cavity.