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The walls of veins have the same three layers as the ________. A. Arteries B. Capillaries C. Tissue D. Soma
Weegy: A. Arteries. The veins outer walls have the same three layers as the arteries User: Almost ________ of the total blood volume is in the veins at any given time. A. 30% B. 50% C. 70% D. 90% Weegy: C. 70% percent of the total blood volume is in the veins at any given time. User: The brain is divided into the _______. A. Cerebrum B. Cerebellum C. Brain stem D. All of the above Weegy: A. Cerebrum User: The spinal cord serves as a conduction pathway for impulses going to and from the ________. A. Lungs B. Liver C. Brain D. Heart User: The autonomic nervous system manages our ________. A. Heart rate B. Blood pressure C. Body temperature D. All of the above User: 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: A. Digestion, movement, absorption 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: The answer is : B. 3 to 5 seconds User: Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth Weegy: Which organ is NOT a part of the digestive system?C. Kidneys User: The food molecules that cannot be ________ need to be eliminated from the body. A. Ingested B. Digested C. Regurgitated D. All of the above Weegy: The food molecules that cannot be B. digested or absorbed need to be eliminated from the body. [ ] (More)
Question
Expert Answered
Asked 4/27/2012 1:25:36 PM
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An instrument called a ________ is used to measure the volume of air that moves into and out of the lungs. A. Hydrometer B. Barometer C. Spirometer D. None of the above
Question
Not Answered
Updated 6/5/2014 2:49:35 PM
1 Answer/Comment
An instrument called a SPIROMETER is used to measure the volume of air that moves into and out of the lungs.
Added 6/5/2014 2:49:35 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by debnjerry [6/5/2014 8:26:06 PM]
An instrument called a ________ is used to measure the volume of air that moves into and out of the lungs.
Question
Updated 6 days ago|7/28/2015 12:26:40 AM
1 Answer/Comment

An instrument called a SPIROMETER used to measure the volume of air that moves into and out of the lungs.

Added 6 days ago|7/28/2015 12:26:40 AM
This answer has been confirmed as correct, not copied, and helpful.
What is the trachea commonly called? A. Voice box B. Vocal cord C. Windflute D. Windpipe
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Updated 5/28/2014 12:00:01 PM
1 Answer/Comment
The trachea is commonly called the WINDPIPE.
Added 5/28/2014 12:00:01 PM
This answer has been confirmed as correct, not copied, and helpful.
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