The atlas is classified as a ________ vertebra.
A) thoracic
B) lumbar
C) sacral
D) cervical
E) coccygeal
D) cervical
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Which of the following is not a method that maintains lymph flow?
A) skeletal muscle contraction B) breathing C) valves in lymph vessel walls D) smooth muscle contraction
Repaying the oxygen deficit involves the formation of lactate in fatigued muscles
Indicate whether the statement is true or false
The three branches off of the aorta that supply blood to the upper limbs and head are the ________.
A. brachiocephalic trunk, right subclavian artery, and left common carotid artery B. left common carotid artery, left subclavian artery, and brachiocephalic trunk C. brachiocephalic trunk, right subclavian artery, and left subclavian artery D. right common carotid artery, right subclavian artery, and brachiocephalic trunk
The plasma membrane
A. separates the nucleus from the rest of the cell. B. is a rigid protein membrane. C. has a single layer of phospholipids. D. regulates movement of materials into and out of the cell. E. is not permeable.