Answer the following statements true (T) or false (F)
1. The intercalated disks that link the heart cells assist in the efficient conduction of the heart contraction.
2. The sinoatrial node is sometimes called the pacemaker of the heart.
3. The AV node initiates the contraction of the atria.
4. The Purkinje fibers and the bundle of His are involved in the contraction of the ventricles.
5. A patient with a serious heart block may be treated with an artificial pacemaker.
1. TRUE
2. TRUE
3. FALSE
4. TRUE
5. TRUE
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Both the cardiac plexus and the _______ plexus consist of postganglionic sympathetic axons from the thoracic sympathetic trunk ganglia and preganglionic axons from the vagus nerve
Fill in the blank with correct word.
List two factors used in developing a vaccination program
What will be an ideal response?
Exhausted from studying all night, you briefly close your eyes and your mind starts to wander. Which brain waves would be most predominant in an EEG?
A. Theta B. Delta C. Beta D. Alpha
Abundant myoglobin is typical of which type of skeletal muscle fibers?
A. Type I B. Type II