In the premenstrual phase of the menstrual cycle, which arteries rhythmically constrict and dilate causing endometrial ischemia?
A. Spiral
B. Arcuate
C. Ovarian
D. Uterine
E. Internal iliac
Answer: A
You might also like to view...
Blood colloid osmotic pressure is produced by
A) large non-diffusible proteins in the blood plasma. B) a greater salt concentration in blood cells. C) the force of blood pushing against the vessel wall. D) osmosis of water. E) hypertonic solutions separated by a cell membrane.
Which statement accurately describes spinal nerves?
A. Most spinal nerves are motor nerves. B. Each spinal nerve is mixed in that it contains some sensory axons and some motor axons. C. All spinal nerves are sensory nerves. D. Odd-numbered spinal nerves are sensory and even-numbered spinal nerves are motor. E. Spinal nerves are central axons contained within the vertebral canal.
Of the organelles listed, which one does NOT contain microtubules?
A. Flagella B. Cilia C. Microvilli D. Centrioles E. All of the choices contain microtubules.
Aldosterone regulates the blood sodium and potassium levels.
a. true b. false