Cardioinhibitory centers in the ________ receive input from ________
A) hypothalamus; proprioceptors in the joints
B) cortex; proprioceptors in the muscles
C) thalamus; chemoreceptors in the medulla oblongata
D) pons; baroreceptors in the internal carotid
E) medulla oblongata; chemoreceptors in the aortic arch
E
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Collectively, the conducting cells that carry the impulse from the SA node to the AV node is known as the
A) conducting system. B) AV block. C) internodal pathway. D) bundle branches. E) pacemaker cells.
Recommended daily allowances are government-established values for nutrient intake that are used for food planning and labeling.
Answer the following statement true (T) or false (F)
Which of the following is a passageway for both air and food?
A. Larynx B. Pharynx C. Esophagus D. Trachea E. Bronchus
Which of the following is a function of the heart skeleton?
A. Supplies support and reinforcement for the valves B. Provides a rigid site for cardiac muscle attachment C. Provides electrical insulation between the atria and ventricles D. All of the choices are functions of the heart skeleton.