The Type of Intercellular Junction That Forms Tubular Channels Is

question 59

Multiple Choice

The type of intercellular junction that forms tubular channels is

• A) a desmosome.
• B) a gap junction.
• C) a tight junction.
• D) found in the blood-brain barrier.

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Definitions:

HCG

Human chorionic gonadotropin (HCG) is a hormone produced by the placenta after implantation.

Neural Tube

The embryonic precursor to the central nervous system, which includes the brain and spinal cord, formed from the folding and closure of a flat sheet of cells in the early embryo.

Neural Groove

A fold in the neural plate during embryonic development, which deepens to form the neural tube, ultimately developing into the central nervous system.

Monozygotic Twins

Genetically identical twins that arise from the division of a single fertilized egg; commonly known as identical twins. Compare with dizygotic twins.