All of the following are included in the cardiac electrical conduction system EXCEPT
bundle of His
sinoatrial septum
sinoatrial node
atrioventricular node
sinoatrial septum
Rationale: No electrical impulse is conducted in the sinoatrial septum.
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In response to increasing levels of blood sugar in the blood, ____________________ is secreted by the pancreas in order to control blood sugar levels
a. Glucagon b. Somatostatin c. Thyroxine d. Insulin
A 17-year-old girl was injured when her car was struck from behind while she was stopped at a red light. She is complaining of a headache with neck and back pain. You suspect she has sustained a(n):
A) extension injury. B) distraction injury. C) compression fracture. D) whiplash injury.
Which of the following may help in minimizing the stressful effects of the disruption in circadian rhythms seen in EMS multiple-casualty incidents work?
A) Keep your bedroom light on and warm. B) Sleep as much as possible on days off. C) Seek help from a trained professional. D) Eat a heavy meal just before bedtime.
The first abnormality described in the lymphomas was in Burkitt lymphoma. This first demonstration of a proto-oncogene that was translocated to a location known to be active in B-cell lymphoma,
resulting in the activation of the oncogene, was at what heavy chain locus? a. t(12;21) b. t(8;14) c. 14q32 d. P13;q22