Which of the following is not a property of reflexes?

A ________ is a cordlike organ composed of numerous ________.

Which of the following fractures would be the least likely to cause a spinal cord injury?

There are ________ pairs of spinal nerves.

Which of the following sensory functions involves neurons in the posterior root ganglion?

A nurse pricks your finger to type your blood. You flinch at the pain, pulling your hand back. This is called the ________ reflex.

A dermatome is a nerve innervating a specific region in the skin.

The structure found between the posterior rootlets and the posterior root ganglion is called the ________.

Many upper motor neurons synapse with lower motor neurons in the ________.

Ascending signals in the spinal cord travel via gray matter, while descending signals travel via white matter.

Ascending signals in the spinal cord travel via gray matter, while descending signals travel via white matter.

Tendon organs are ________.

Which one of the following best describes the order of a somatic reflex?

A ganglion is a swelling along a nerve containing the cell bodies of peripheral neurons.

Cervical and lumbar enlargements are wide points in the spinal cord marking the emergence of motor nerves.

Unipolar neurons have only a single process leading away from the neurosoma.

While both systems maintain homeostasis, how does the nervous system differ from the endocrine system?

Which of these does not contribute to the cessation of the signal in a synaptic transmission?

Which of the following is true regarding unmyelinated nerve fibers in the PNS?

Nitric oxide (NO) acts as a neuromodulator by altering synaptic function.

A neuron can receive thousands of EPSPs from different neurons, and responds by triggering or not triggering an action potential. This addition and response to the net effect of postsynaptic potentials is called ________.

While a neuron membrane is depolarizing its ________.

All of the following are typical characteristics of neurotransmitters except ________.

Nerves are ________ of the nervous system.

What is the primary site on a neuron for receiving signals from other neurons?

Where does saltatory conduction occur?

Which of these is an example of an EPSP in a typical neuron?

What occurs during hyperpolarization of a neuron membrane?

Most metabolic and regulatory functions in a neuron happen where?

The ________ division tends to prepare the body for action.

An inhibitory local potential causes which of the following?

A myelin sheath is composed primarily of ________.

How does a neuron transport enzymes produced in the neurosoma to its axon terminals?

In the brain, neurons are more abundant than neuroglia.

If the potassium leak channels were suddenly blocked in a resting neuron, what would happen to its resting membrane potential?

The nervous system employs exclusively electrical means to send messages, whereas the endocrine system communicates by means of chemical messengers.

The ________ division carries signals to the smooth muscle in the large intestine.

What would be the best explanation for why myelinated fibers conduct signals faster than unmyelinated fibers?

What is another name for the autonomic nervous system?

In an action potential, which event directly follows repolarization?

The opening of ________ gates produces an ________.

What property of neurons allows them to respond to changes in the environment?

When a neuron is stimulated, Na + gates open and allow Na + to exit the cell.

Oligodendrocytes serve the same purpose in the CNS that satellite cells do in the PNS.

Which glial cell is found wrapped around nerve fibers in the PNS?

When the voltage of a plasma membrane shifts from +35 mV towards 0 mV, the cell is ________.

A neuron receives a stimulus. Which of the following events happens next?

In order to regenerate, a peripheral nerve fiber must have which of the following?

Place the following events in synaptic transmission at a cholinergic synapse in order: A - A postsynaptic potential is produced; B - Voltage gated calcium channels open and calcium enters the cell; C - ACh is released and diffuses across the axon terminal; D - A nerve signal arrives at an axon terminal; E - Ligand gated sodium channels open and sodium enters the cell.

The term "nerve fiber" refers to a(n) ________.