Which of the following muscles of the chest has its insertion on the humerus?
A. pectoralis major
B. pectoralis minor
C. serratus anterior
D. subclavius
E. internal intercostals
A
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Which of the following is found in orbitals surrounding the nucleus of the atom?
a. proton b. neutron c. electron d. both proton and neutron
Which of the following is found in the nucleus of the atom?
a. proton b. neutron c. electron d. both proton and neutron
Transcription factors are proteins whose binding to the ________ region for a gene can ________ (increase) or ________ (decrease) expression of that gene.
Fill in the blank(s) with the appropriate word(s).
During the act of defecation the coccyx is deflected posteriorly. What muscle is responsible for pulling the coccyx anteriorly after defecation?
A. Iliococcygeus B. Coccygeus C. Puborectalis D. Pubococcygeus E. External anal sphincter