Chapter 12, Problem 49RQ

In emergencies when O2 supplies are low, the brain can perform anaerobic metabolism. (True or false?)

What type of ganglion contains neurons that control homeostatic mechanisms of the body? sensory ganglion dorsal root ganglion autonomic ganglion cranial nerve ganglion

What methods can be used to determine the function of a particular brain region?

How would a rise in altitude likely affect the speed of a sound transmitted through air? Why?

Horners syndrome is a condition that presents with changes in one eye, such as pupillary constriction and dropping of eyelids, as well as decreased sweating in the face. Why could a tumor in the thoracic cavity have an effect on these autonomic functions?

What are two major disadvantages of MRI scans? release of radiation and poor quality images high cost and the need for shielding from the magnetic signals can only view metabolically active tissues and inadequate availability of equipment release of radiation and the need for a patient to be confined to metal tube for up to 30 minutes

What are the main differences between the sympathetic and parasympathetic branches of the autonomic nervous system?

Which type of drug could be used to treat asthma by opening airways wider? sympatholytic drug sympathomimetic drug anticholinergic drug parasympathomimetic drug

Which of the following statements describes smooth muscle cells? They are resistant to fatigue. They have a rapid onset of contractions. They cannot exhibit tetanus. They primarily use anaerobic metabolism.