The parietal cells of the gastric mucosa secrete
a. HCl
b. pepsinogen
c. intrinsic factor
d. a and b
e. a and c
E
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Inhaling through the nostrils is preferred over the mouth because
A) there is less resistance to flow. B) it combines olfaction with respiration. C) it allows better conditioning of the inhaled air. D) bacteria won't be inhaled from the oral cavity. E) it dries out the mouth.
The pontine respiratory group
A. is a collection of neurons in the pons. B. has connections with the medullary respiratory centers. C. plays a role in switching between inspiration and expiration. D. All of these are correct.
An ipsilateral, intersegmental, spinal somatic reflex will most likely control
A) only one flexor muscle on the same side of the body as the sensor. B) many flexor muscles on the same side of the body as the sensor. C) many flexor and extensor muscles on the same side of the body as the sensor. D) many flexor muscles on the opposite side of the body as the sensor. E) many flexor and extensor muscles on the opposite side of the body as the sensor.
This figure shows the humerus. What is the feature indicated by number 3?
A. Surgical neck B. Anatomical neck C. Greater tubercle D. Lesser tubercle E. Deltoid tuberosity