What percentage of the body moves lymph in to the thoracicduct?
a. 100%.
b. 75%.
c. 50% .
d. 25%.
Answer: b. 75%.
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In which of the following would the motor units have the fewest muscle fibers?
A) muscles of the neck B) postural muscles of the back C) muscles that control the eyes D) thigh muscles E) calf muscles
E. all of the above
A. They are associated with synovial joints. B. They separate tendons from bones to reduce friction. C. They separate skin from bones to reduce friction. D. both A and B E. all of the above
Name the structures and spinal coverings that are penetrated during a lumbar puncture procedure
A) epidermis, dermis, skeletal muscle, subarachnoid space, arachnoid mater, dura mater, pia mater, subdural space B) dermis, epidermis, skeletal muscle, pia mater, arachnoid mater, dura mater, subdural space C) dermis, epidermis, skeletal muscle, dura mater, pia mater, arachnoid mater, subdural space D) epidermis, dermis, skeletal muscle, dura mater, arachnoid mater, subarachnoid space E) epidermis, dermis, skeletal muscle, pia mater, arachnoid mater, subarachnoid space
All of the following statements describe the consequences of mutations in DNA replication except which one?
A. The mutation will be passed to future daughter cells. B. There is no mechanism for proofreading DNA replication in order to avoid mutations. C. The mutation can benefit the cell. D. The mutation can be detrimental to the cell.