______ are numerous folds or finger like projections on apical surfaces of hollow organs
Fill in the blank(s) with the appropriate word(s).
microvilli
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Which is correct regarding chromosome numbers during oogenesis?
A. Both primary oocytes and secondary oocytes are haploid. B. Both primary oocytes and secondary oocytes are diploid. C. Primary oocytes are haploid, secondary oocytes may be haploid or diploid depending on their meiotic stage. D. Primary oocytes are haploid, secondary oocytes are diploid. E. Primary oocytes are diploid, secondary oocytes are haploid.
What is the largest and most powerful muscle of the erector spinae muscle group?
A. Longissimus thoracis B. Iliocostalis thoracis C. Longissimus capitis D. Iliocostalis lumborum
The voltage across a neuron's membrane has changed from its resting potential of -70mV to -80mV. Which of the following is most likely to be TRUE regarding this situation?
A) The neuron has bound a neurotransmitter that increases membrane permeability to sodium ions. B) Large pores have opened in the membrane to allow release of large intracellular anions. C) The neuron has bound a neurotransmitter that increases the permeability to chloride ions. D) Additional myelin has been added to the membrane to provide greater electrical insulation.
The spinal tract that relays information concerning pain and temperature to the CNS is the
A) fasciculus gracilis. B) fasciculus cuneatus. C) posterior spinocerebellar. D) lateral spinothalamic. E) anterior spinothalamic.