Which of the abdominal muscles is innervated by spinal nerves T7?T12?
A. Transversus abdominis
B. Internal oblique
C. Rectus abdominis
D. External oblique
E. None of these choices is correct.
Answer: C
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An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold.
Indicate whether the statement is true or false.
The process of cell division that divides the cytoplasm of the zygote among blastomeres is called
A) cleavage. B) implantation. C) placentation. D) embryogenesis. E) blastulation.
A ________ is a large, heavily branched neuron with a pear-shaped soma and numerous large dendrites running out into the gray matter of the cerebellum.
Fill in the blank(s) with the appropriate word(s).
The dicrotic notch observed on tracing of blood pressure recording is due to
a. mitral valve closure. b. aortic semilunar valve closure. c. pulmonary semilunar valve closure. d. tricuspid valve closure.