Skeletal muscle contractions working in conjunction with vein valves help move blood against gravity

Indicate whether the statement is true or false


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Anatomy & Physiology

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Which feature enables mammals to breathe and chew at the same time?

A. The perpendicular plate of the ethmoid bone B. Large nasal conchae C. The shape of the pterygoid process D. A hard palate that separates the oral and nasal cavities E. The presence of a hyoid bone

Anatomy & Physiology

The kidneys maintain ______________ by controlling the amounts of water and electrolytes they eliminate

Fill in the blank(s) with correct word

Anatomy & Physiology

What causes the heart valves to open and close?

a. action potentials in vagus nerve b. electrical connection with vagus nerve c. differences in blood pressure across the valve

Anatomy & Physiology

Oxygentated blood is supplied to the liver by the:

a. hepatic proper artery b. the hepatic portal vein c. the superior mesenteric artery d. a and b

Anatomy & Physiology