With emphysema, the muscles that contract with normal exhalation include which of the following?
A. external intercostals and abdominal muscles
B. internal intercostals
C. internal intercostals and abdominal muscles
D. abdominal muscles
E. external intercostals
Answer: C. internal intercostals and abdominal muscles
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Hair cells in the semicircular canals detect changes in the rate of angular motion of the head, while the same kinds of cells in the utricle and saccule detect changes in the head's rate of linear motion.
Answer the following statement true (T) or false (F)
The first cervical vertebra is called the
A) primum. B) atlas. C) axis. D) cervix. E) apex.
The multiple thin, branched structures on a neuron whose main function is to receive incoming signals are the
A) somata. B) cell bodies. C) dendrites. D) axons. E) None of the answers are correct.
The human blastocyst consists of two populations of cells with different functions. Select the correct match between population and its function
A) inner cell mass (ICM); forms the embryo and three of the four extraembryonic membranes B) trophoblast; becomes fetal amnion C) inner cell mass (ICM); becomes fetal chorion D) trophoblast; becomes yolk sac