The trachea:
a. is also called the windpipe
b. contains C-shaped rings of cartilage
c. is lined by respiratory mucosa
d. all of the above
d. all of the above
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Tissue damage can trigger local release of histamine, which can
A. stimulate release of nitric oxide, a vasodilator. B. stimulate release of nitric oxide, a vasoconstrictor. C. inhibit release of nitric oxide, a vasodilator. D. inhibit release of nitric oxide, a vasoconstrictor.
A lesion in the ________ is likely to affect thinking, planning, and overall personality, as this brain region plays a significant role in cognition.
A. reticular activating system B. olfactory bulb C. premotor cortex D. prefrontal cortex
The electrocardiogram is most useful in determining which component of cardiac output?
a. stroke volume b. heart rate c. ejection fraction d. end-diastolic volume e. murmurs
Cedric slipped and cut his finger. The cut bled, but did not penetrate to the hypodermis. The deepest layer penetrated was the
A. stratum corneum. B. papillary layer of the dermis. C. stratum spinosum. D. stratum basale. E. stratum granulosum.