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The capillaries, the smallest and most ________ of the blood vessels A. Expansive B. Diverse C. Powerful D. Numerous
D. Numerous. Capillaries, which are the smallest and most numerous blood vessels in the human body
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User: The capillaries, the smallest and most ________ of the blood vessels A. Expansive B. Diverse C. Powerful D. Numerous

Weegy: D. Numerous. Capillaries, which are the smallest and most numerous blood vessels in the human body
Shanaaz1986|Points 480|

User: 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
migzptz|Points 6106|

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.
sujaysen|Points 2206|

User: The brain is divided into the _______. A. Cerebrum B. Cerebellum C. Brain stem D. All of the above

Weegy: A. Cerebrum
sipichapie|Points 4511|

User: The spinal cord serves as a conduction pathway for impulses going to and from the ________. A. Lungs B. Liver C. Brain D. Heart

Weegy: C. Brain
smp0784|Points 3656|

User: The autonomic nervous system manages our ________. A. Heart rate B. Blood pressure C. Body temperature D. All of the above

Weegy: D. All of the above
rachell028|Points 670|

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: C. Digestion, absorption, elimination Food undergoes four types of processes in the body:
BRAINSTORM|Points 3057|

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
sujaysen|Points 2206|

User: Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth

Weegy: c. Kidneys. They are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid–base balance, and regulation of blood pressure
Expert answered|jcr.2008|Points 326|

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Asked 6/26/2012 12:26:32 PM
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Weegy: A. Involuntarily User: How is cardiac muscle similar to smooth muscle? A. Both are striated B. They share no similarities C. They share no differences D. Both have one central nucleus Weegy: A. Both are striated User: There are ________ of muscles that are responsible for chewing movements or mastication. A. Two pairs B. Three pairs C. Four pairs D. Five pairs Weegy: There are C. Four pairs of muscles that are responsible for chewing movements or mastication. User: The ________ muscle mass belongs to the posterior group? A. Smallest B. Largest C. Most dense D. None of the above Weegy: B. Largest User: Nearly ________ of the heat produced in the body is the result of muscle contraction. A. 55 percent B. 65 percent C. 75 percent D. 85 percent Weegy: D. 85% User: Skeletal muscles have an abundant supply of ________. A. Tendons B. Bones and cells C. Blood vessels and nerves D. All of the above Weegy: The answer is A and C. Skeletal muscle is a form of striated muscle tissue existing under control of the somatic nervous system, that is, it is voluntarily controlled. It is one of three major muscle types, the others being cardiac and smooth muscle. [ As their name suggests, most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. Skeletal muscle is made up of individual components known as myocytes, or "muscle cells", sometimes colloquially called "muscle fibers". They are formed from the fusion of developmental myoblasts (a type of embryonic progenitor cell that gives rise to a muscle cell). These long, cylindrical, multinucleated cells are composed of myofibrils. The myofibers are in turn composed of myofibrils. The myofibrils are composed of actin and myosin myofibrils repeated as a sarcomere, the basic functional unit of the muscle fiber and responsible for skeletal muscle's striated appearance and forming the basic machinery necessary for muscle contraction. The ... (More)
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They are located in the back.
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