What is considered to be the pacemaker of the heart?
A. Purkinje fibers
B. Atrioventricular node
C. Atrioventricular bundle
D. Sinoatrial node
Answer: D
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What is the path of blood from the heart, to the left zygomaticus muscles, and back to the heart?
A. Aorta > left brachiocephalic artery > left common carotid artery > left internal carotid artery > left occipital artery > zygomatic tissues > left maxillary vein > left internal jugular vein > left subclavian vein > left brachiocephalic vein > superior vena cava B. Aorta > left common carotid artery > left internal carotid artery > left maxillary artery > zygomatic tissues > left facial vein > left external jugular vein > left subclavian vein > left brachiocephalic vein > superior vena cava C. Aorta > left common carotid artery > left external carotid artery > left facial artery > zygomatic tissues > left facial vein > left internal jugular vein > left subclavian vein > left brachiocephalic vein > superior vena cava D. Aorta > left brachiocephalic artery > left common carotid artery > left external carotid artery > left facial artery > zygomatic tissues > left facial vein > left internal jugular vein > left subclavian vein > superior vena cava
Those with an asthenic body habitus have a slight build with a long, narrow, and shallow thorax that is wider more superiorly.
Answer the following statement true (T) or false (F)
A patient's anxiety caused her to develop respiratory alkalosis. The nurse instructs the patient to take some slow deep breaths. Explain why this would be effective.
What will be an ideal response?
The earliest period of prenatal development is the ________ period.
A. fetal B. embryonic C. infant D. germinal E. neonatal