Plasma makes up about ______ percent of a centrifuged sample of whole blood
A. 25
B. 35
C. 45
D. 55
E. 75
D
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The ________ can be found as part of the epithalamus, near the superior colliculi of the midbrain.
A. hypothalamus B. pituitary gland C. pineal gland D. adrenal gland E. hypophysis
The ejection fraction is ________.
A. the ratio of stroke volume to end diastolic volume B. the ratio of end diastolic volume to end systolic volume C. decreased by sympathetic agonists D. increased by parasympathetic agonists
The most important muscle associated with breathing is the
A. diaphragm. B. quadratus lumborum. C. external intercostal. D. intertransversarii. E. rotators.
Answer the following statements true (T) or false (F)
1. Dopamine and serotonin are neurotransmitters that can act as natural pain killers. 2. The brainstem consists of the medulla oblongata, the pons, and the midbrain. 3. Many of the “vital centers” are located in the brainstem. 4. The hypothalamus is important in regulation of body temperature. 5. The hypothalamus secretes ADH into the blood to help control water balance.