What cells form the myelin sheaths around nerve fibers in the PNS?

Support cells in the central nervous system are collectively called ________.

The part of the neuron that typically conducts nerve impulses away from the cell body is the ________.

The gaps between Schwann cells found at regular intervals in peripheral system neurons are called ________.

Sensory receptors located in muscles and tendons are termed ________.

Mr. Warren has spinal cord damage that prevents nerve impulses from being carried from the CNS to muscles or glands. What specific type of neuron has been damaged?

What are the major positive ions situated outside the neuron when it is polarized?

Myelinated fibers (tracts) form ________ matter while unmyelinated fibers form ________ matter.

What type of neuron connects sensory and motor neurons in neural pathways?

During repolarization, what ions are pumped out of the cell?

What reflexes stimulate skeletal muscles?

The thalamus, hypothalamus, and epithalamus collectively constitute the ________.

What brain dysfunction results when blood supply to a region (or regions) of the brain is blocked and vital brain tissue dies, as by a blood clot or a ruptured blood vessel?

The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ________.

Cerebrospinal fluid is formed from blood by clusters of capillaries in the brain known as ________.

In which cerebral lobe is the primary somaticsensory cortex located?

The blood-brain barrier is formed by ________ junctions that nearly seamlessly bind capillaries in the brain.

Which of the following is one of the major functions of the pons?

What fissure separates the two cerebral hemispheres of the brain?

The hypothalamus regulates the ________.

The large fiber tract that allows communication between the two cerebral hemispheres is called the ________.

What portion of the diencephalon acts as a relay station for sensory impulses traveling upward to the sensory cortex?

The delicate innermost membrane, or meningeal layer, that clings to the surface of the brain and spinal cord is known as the ________ mater.

Hemiplegia and aphasia characterize those patients who have experienced a ________.

How many pairs of spinal nerves emerge from the spinal cord?

Which disease is a progressive, degenerative disease of the brain that ultimately results in dementia and is associated with a shortage of acetylcholine?

The ________ is a connective tissue wrapping around fascicles of neuron fibers.

Which branch of the autonomic nervous system (ANS) mobilizes the body during extreme situations, such as rage or fear?

What pair of cranial nerves extends to the thoracic and abdominal cavities?

What is the name of cranial nerve III?

Damage to the cervical nerve plexus can cause problems with ________.

What congenital disorder can occur when there is a temporary lack of oxygen during delivery of a baby?

The largest nerve in the body, the sciatic nerve, belongs to the ________ nerve plexus.

Each spinal nerve divides into a dorsal and a ventral ________.

What division of the autonomic nervous system is often called the "rest-and-digest" division?

The term central nervous system refers to the ________.

Fibers that carry information from the skin, joints, and skeletal muscles to the central nervous system are ________.

Which of these neuroglial cells forms the myelin sheath in the central nervous system?

Which ciliated neuroglial cell circulates cerebrospinal fluid?

What part of the neuron releases neurotransmitters from vesicles?

Ms. Young feels deep pressure during a tooth extraction. Which type of sensory receptor detects this sensation?

What is the primary role of the interneuron (association neuron)?

How are neurons with several processes branching off the cell body, such as motor neurons and interneurons (association neurons), structurally classified?

What are the two major functional properties of neurons?

Ganglia are collections of ________.

Impulse conduction is faster in neurons that are ________.

What best describes bipolar neurons?

What statement best describes the resting state of a neuron?

Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid?

An action potential is caused by an influx of ________ ions into the cell.

Nerve impulse transmissions occurring along myelinated neurons are called ________.

Neurons either conduct action potentials along the length of their axons, or they remain at rest. This statement best describes ________.

Which one of the following is the correct sequence of events that correlates to the sequence of events of a nerve impulse?

1. the membrane becomes depolarized

2. sodium channels open and sodium ions diffuse inward

3. the membrane becomes repolarized

4. potassium channels open and potassium ions diffuse outward

Which ion causes neurotransmitter vesicles to fuse with the axon's membrane during the conduction of a nerve impulse from one neuron to the next?

The gap between two communicating neurons is termed ________.

Which of the following terms indicates a nerve impulse has been initiated and is being transmitted?

Which of the following is the correct sequence in a typical reflex arc?

Rick quickly pulled his hand away from the hot stove. What type of reflex is this?

Which of the following is NOT a major region of the brain?

Which of the following indicates damage to the primary motor area?

A stroke in the primary motor area has caused Don to lose control over his skeletal muscles on the right side of his body. What lobe of his brain was damaged?

Sally has a brain injury; she knows what she wants to say but can't vocalize the words. The part of her brain that deals with the ability to say words properly is the ________.

The midbrain, pons, and medulla oblongata are housed in the ________.

What specific part of the midbrain houses reflex centers for vision and hearing?

The hypothalamus is the "emotional-visceral" center of the brain and, thus, is an important part of the ________.

The neural processes that convey incoming messages toward the cell body are indicated by ________.

The metabolic center of the neuron is indicated by ________.

The axon terminals are indicated by ________.

The axon is indicated by ________.

The gaps between Schwann cells are indicated by ________.

The nucleus of the neuron is indicated by ________.

Cerebrospinal fluid (CSF) circulates through all of the following EXCEPT ________.

A special group of neurons in the gray matter of the brain stem that plays a role in consciousness and the awake/sleep cycles is the ________.

Control of temperature, endocrine activity, metabolism, and thirst are functions associated with the ________.