Exam 9: Nervous System

A nerve impulse consists of a wave of __________ potentials moving along the axon of a neuron.

When you raise your hand to ask a question in class, what structures carry the impulse from your brain to your deltoid muscle?

The most abundant cation within cells is __________; the most abundant cation outside of cells is __________.

Most nerves of the body are mixed nerves.

Sensory and motor function, memory, reasoning and other higher cognitive functions are performed by what part of the brain?

What is the simplest nerve pathway in the body called?

What converts environmental information into impulses that are then conducted to the central nervous system?

Nerves of the peripheral nervous system form complex networks called __________.

In most individuals, writing skills would be impaired if there was damage to which area of the brain?

Which of the following is NOT a type of neuroglia?

Sensory impulses from receptors of the feet reach the brain by which structure?

A neuron may release more than one type of neurotransmitter.

If fibers in an ascending tract of the spinal cord are cut, the affected person will have a loss of motor functions below the injury.

Which of the following contains unmyelinated axons and neuronal cell bodies?

When ten or more neurons conduct impulses to five or fewer same post-synaptic neurons, the conduction pattern is said to be __________.

When ten or more pre-synaptic neurons conduct impulses to five or fewer post-synaptic neurons, the conduction pattern is said to be __________.

Afferent neurons bring sensory information into the central nervous system.

The peripheral nervous system includes sensory and motor divisions.

What bundles of axons carry impulses from the central nervous system to effectors?