During Infancy,the Lumbar Curvature Appears Between the _____ Months

question 6

Multiple Choice

During infancy,the lumbar curvature appears between the _____ months.

• A) second and fourth
• B) fourth and sixth
• C) sixth and tenth
• D) twelfth and eighteenth

---

Definitions:

Membrane Depolarizes

The process by which a cell membrane's voltage becomes less negative, leading to the possible firing of an action potential in neurons.

Sperm

Male gamete having a haploid number of chromosomes and the ability to fertilize an egg, the female gamete.

Egg

Also called an ovum; haploid cell that is usually fertilized by a sperm to form a diploid zygote.

Fertilize

The process of a sperm cell joining with an egg cell to initiate the development of a new organism.