Examlex
For all atoms of the same element, the 2s orbital is larger than the 1s orbital.
Carcinoma
Carcinoma is a type of cancer that begins in the skin or in tissues that line or cover internal organs.
Myelin Sheath
A fatty layer that surrounds the axon of some neurons, increasing the speed at which electrical impulses propagate along the nerve cell.
Acetylcholine
A neurotransmitter in both the central and peripheral nervous systems that plays an important role in muscle contraction and sensory perception.
Axons
Long, slender projections of neurons that conduct electrical impulses away from the neuron's cell body, facilitating communication within the nervous system.
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