Why is injury to the medulla oblongata frequently fatal?
This region of the brain contains the centers for regulating the cardiovascular system and initiating respiration, both vital to life. In addition, most sensory and motor tracts pass through the medulla oblongata between higher and lower centers of the nervous system.
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If ________ is not corrected and secretions are retained, pneumonia can develop.
A. asthma B. bronchitis C. atelectasis D. emphysema
When calcium ion binds to troponin,
A) tropomyosin rolls away from the active site. B) active sites on the myosin are exposed. C) actin heads will bind to myosin. D) muscle relaxation occurs. E) myosin shortens.
A cancerous condition involving uncontrolled proliferation of WBCs is known as:
a. neutrophilia b. lymphoma c. sickle cell anemia d. malaria e. leukemia
What is the crista ampullaris associated with?
A. Static equilibrium when standing still B. Vision related to color C. Static acceleration in linear acceleration D. Dynamic equilibrium in angular acceleration E. Hearing high-pitch sounds