Select the choice that revises the comma splice errors. 

A Luer-Slip syringe tip secures hypodermic needles to the barrel better than a Luer-Lok syringe tip.

What is the major function of the structures at A?

This substance composed of phospholipids and proteins (a rolled up sheet of cell membrane) insulates the axons of motor neurons:

The whole nervous system is divided into two main divisions, called the:

This type of neuron membrane protein opens when a neurotransmitter binds to it.

Nerves contain no connective tissues.

Which of these is a characteristic of the primary motor cortex?

Which of the following structures is not identified correctly?

Which branch of the nervous system transmits signals from internal organs and blood vessels toward the CNS?