A posterior and anterior root of each spinal segment unite to form a
A) cervical enlargement.
B) lumbar enlargement.
C) spinal nerve.
D) denticulate ligament.
E) spinal ganglion.
C
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Which of the following vessels empties into the right atrium?
A) pulmonary trunk B) pulmonary veins C) superior vena cava D) ascending aorta
Cardiac muscle differs from other muscle tissue in
A) having fewer mitochondria. B) having striations. C) no ways; it is not unusual. D) having larger sized fibers than other striated muscles. E) having fibers connected to one another at intercalated discs.
Which is not correct regarding the posterior pituitary?
A. It is derived from nervous tissue B. It releases its hormones in response to nervous stimulation C. It is connected to the hypothalamus by the hypothalamo-hypophyseal tract D. It stores oxytocin and antidiuretic hormone E. It is composed of the pars intermedia and the infundibular stalk
Tracheal cartilages provide for ________ on the ________ aspect of the trachea.
A. rigidity; anterior B. flexibility; posterior C. flexibility; anterior D. rigidity; posterior