What part of the retina lacks photoreceptors?
A. Posterior retina
B. Macula lutea
C. Fovea centralis
D. Optic disc
E. All of the choices are correct.
Answer: D
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Answer the following statements true (T) or false (F)
1. The last two sets of ribs that are only attached to the vertebrae are called false ribs. 2. The sternum is also called the breastbone. 3. The scapula and clavicle make up the pectoral girdle. 4. The tibia and fibula are the bones of the lower arm. 5. The femur is the bone of the thigh.
During anaerobic conditions,
a. more pyruvate is formed from lactate. b. the degradation of glucose cannot proceed beyond the Krebs cycle. c. mitochondrial processing of nutrient molecules takes place. d. the ETS continues to function, but the Krebs cycle does not. e. FAD is not converted to FADH2.
Beginning with the outermost layer, the three meningeal layers of the central nervous system are the:
A. dura mater, pia mater, arachnoid. B. arachnoid, pia mater, dura mater. C. dura mater, arachnoid, pia mater. D. pia mater, dura mater, arachnoid.
During expiration, the alveolar pressure must be
A. greater than atmospheric pressure. B. less than atmospheric pressure. C. equal to atmospheric pressure. D. greater than pleural pressure. E. None of these choices is correct.