Group 2A Elements Are Called

question 45

Multiple Choice

Group 2A elements are called

• A)alkali metals.
• B)alkali earth metals.
• C)halogens.
• D)noble gases.

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Definitions:

Axons

Long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.

Synaptic Knob

The part of a neuron that connects to another neuron or muscle cell, facilitating the transmission of neurotransmitters across the synaptic gap.

Synapse

The junction between two neurons or a neuron and a muscle cell, where electrical or chemical signals are transmitted from one cell to another.

Neurilemma

The outermost layer of a nerve fiber, crucial for the regeneration of peripheral nerve fibers and also known as the Schwann cell sheath.