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The respiratory conducting passages are divided into the ________. A. Upper and lower respiratory tract B. Posterior and exterior respiratory tract C. Internal and external respiratory
tract D. Left and right respiratory tract
The respiratory conducting passages are divided into the: Upper and lower respiratory tract.
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Asked 5/8/2012 10:25:02 AM
Updated 11/15/2014 8:26:26 AM
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The respiratory conducting passages are divided into the: Upper and lower respiratory tract.
Added 11/15/2014 8:26:26 AM
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A. Upper and lower respiratory tract
Added 8/21/2012 8:26:57 AM
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How is cardiac muscle similar to smooth muscle?
Weegy: Compared to skeletal muscle, smooth-muscle cells are small. They are spindle-shaped, about 50 to 200 microns long and only 2 to 10 microns in diameter. They have no striations or sarcomeres. [ Instead, they have bundles of thin and thick filaments (as opposed to well-developed bands) that correspond to myofibrils. In smooth-muscle cells, intermediate filaments are interlaced through the cell much like the threads in a pair of "fish-net" stockings. The intermediate filaments anchor the thin filaments and correspond to the Z-disks of skeletal muscle. Unlike skeletal-muscle cells, smooth-muscle cells have no troponin, tropomyosin or organized sarcoplasmic reticulum. ] (More)
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Expert Answered
Updated 5/12/2012 5:22:21 PM
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Cardiac muscle is similar to smooth muscle in that both are involuntary.
Added 5/8/2012 10:34:06 AM
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Confirmed by Janet17 [11/15/2014 8:22:58 AM]
@smp0784-the user asked for a comparison of cardiac and smooth muscle not skeletal and smooth.
Added 5/8/2012 10:35:17 AM
@Frankie17851- Thank you for the correction.
Added 5/12/2012 5:22:21 PM
How is cardiac muscle similar to smooth muscle?
Weegy: Cardiac muscle is similar to smooth muscle in that both are involuntary. (More)
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Asked 5/8/2012 9:37:08 AM
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The walls of veins have the same three layers as the ________.
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Updated 71 days ago|12/4/2015 11:36:07 AM
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The walls of veins have the same three layers as the arteries.
Added 71 days ago|12/4/2015 11:36:07 AM
This answer has been added to the Weegy Knowledgebase
What three processes does food undergo in the digestive system? A. Digestion, movement, absorption B. Digestion, elimination, restoration C. Digestion, absorption, elimination D. Digestion, absorption, restoration
Weegy: Three processes that food undergoes in the digestive system are: Digestion, absorption, elimination. User: Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds Weegy: Every 3 to 5 seconds, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. User: Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth (More)
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Updated 11/15/2014 8:19:51 AM
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The kidneys are NOT a part of the digestive system.
Added 11/15/2014 8:19:51 AM
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What is the exchange of gases between the blood and tissue cells? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above
Weegy: A. Internal respiration is the exchange of gases between the blood and tissue cells User: What is the larynx commonly called? A. Voice box or epiglottis B. Vocal cord C. Voice box or glottis D. Vocal ligament (More)
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Updated 8/3/2012 6:39:34 AM
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C. external respiration
Every 3 to 5 seconds, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. After this, there is an exchange of gases between the lungs and the blood. This is called external respiration.
Added 8/3/2012 6:39:34 AM
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