+
Cards In This Set
| Front | Back |
|
Which of the following are the TWO major anatomical division?
|
CNS (Central Nervous System) and PNS (Peripheral Nervous System)
|
|
Which TWO of the following are components of the central nervous system?
|
Spinal Cord and Brain
|
|
Which of the following are common effector organs stimulated by the nervous system?
|
Muscles and glands
|
|
Anatomically, the spinal cord can be divided into which number of spinal segments, each of which gives rise to a pair of spinal nerves?
|
31
|
|
Which FOUR of the structures comprise the major regions of the brain?
|
Cerebellum, Cerebrum, Brainstem, and Diencephalon
|
|
Which of the following are regulated by the enteric nervous system?
|
Glandular secretions into the gut and peristalsis
|
|
What is the anatomical term for the involuntary nervous system that is composed of the sympathetic and parasympathetic nervous system?
|
Autonomic nervous system
|
|
Which ONE of the following is NOT a part of the peripheral nervous system?
|
Spinal cord
|
|
What is the term for the single process that arises from the hillok of the cell body of a neuron and terminates at a synapse?
|
Axon
|
|
Bipolor neurons are most likely to be found in which TWO of the following?
|
Retina of the eye and Olfactory bulbs
|
|
Which ONE of the following types of Neuroglial cells are widespread throughout the peripheral nervous system?
|
Schwann Cells
|
|
The process myelination is carried out by which of the following types of glial cells?
|
Schwann cells and oligodendrocytes
|
|
Which ONE of the following is a collective term for tissue composed of neuronal cell bodies, dendrites, axon terminals, neuroglia, and unmyelinated axons?
|
Gray Matter
|
|
What is the term for the type of action potentials conduction that seems to "jump" between the nodes of Ranvier?
|
Saltatory Conduction
|
|
Arrange the following stages of the generation of an action potential in the correct order, starting from the state of the neuron at rest.
|
1. Graded potentials depolarize plasma membrane to threshold (-55mV)
2. Voltage-Gated sodium channels open and the membrane is further depolarized (+30mV) 3. Voltage-gated sodium channels close and voltage-gated potassium channels open 4. Potassium ions flood out of the neuron and the membrane potential drops below the resting membrane potential (-90mV) 5. Voltage-gated potassium channels close and the normal resting membrane potential is re-established. |
