Match the following:
A) Lumbar plexus
B) Brachial plexus
C) Cervical plexus
D) Sacral plexus
1) The obturator and femoral nerves branch from this plexus.
2) Striking the "funny bone" (ulnar nerve) may cause injury to a nerve of this plexus.
3) Trauma to a nerve of this plexus may cause wrist drop.
4) A fall or improper administration of an injection to the buttocks may injure a nerve of this plexus.
5) The phrenic nerve branches from this plexus.
1) A Lumbar plexus
2) B Brachial plexus
3) B Brachial plexus
4) D Sacral plexus
5) C Cervical plexus
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The atria are separated from the ventricles externally by the
A. sinoventricular sulcus. B. anterior interventricular sulcus. C. posterior interventricular sulcus. D. coronary sulcus. E. None of the choices is correct.
What is the function of the valves in the heart?
A) prevent backflow of blood through the heart B) invert during contraction of the ventricles C) promote contraction of the ventricles D) eliminate pressure variances within the heart
The atomic number of an element refers to the number of particles in its atomic nucleus
Indicate whether the statement is true or false.
Nucleic acids are broken down into
A. amino acids and phosphates. B. fatty acids, amino acids, and sugar. C. nitrogen bases, sugar, and glucose. D. adenine, cytosol, and tyrosine. E. sugars, phosphates, and organic bases.