Term
| What are the divisions of the nervous system? |
|
Definition
| Central and Peripheral nervous systems |
|
|
Term
| What are the divisions of the PNS? |
|
Definition
|
|
Term
| What is the function of the sensory division of the PNS? |
|
Definition
| Transmits information from the sensory receptors to the CNS |
|
|
Term
| What is the function of the motor division of the PNS? |
|
Definition
| Transmits information from the CNS to muscles and glands (effector organs) |
|
|
Term
| What are the divisions of the sensory part of the PNS? |
|
Definition
| Visceral and somatic sensory |
|
|
Term
| What is the function of the somatic sensory? |
|
Definition
| Carries information from muscles, skin, bones, and joints |
|
|
Term
| What is the function of the visceral sensory division? |
|
Definition
| Carries information from the viscera of the thoracic and abdominopelvic cavity |
|
|
Term
| What are the divisions of the motor division of the PNS? |
|
Definition
| Visceral motor (autonomic) and somatic motor (involuntary) |
|
|
Term
| What are the two visceral motor divisions? What are their functions? |
|
Definition
Sympathetic:stimulates body and prepares for action such as fight or flight
Parasympathetic: prepares you for rest |
|
|
Term
| What is the function of the somatic motor division? |
|
Definition
| transmits information to the skeletal muscles |
|
|
Term
| What is the function of the visceral motor division? |
|
Definition
| transmits info to cardiac muscle, smooth muscle, and glands |
|
|
Term
| What are the two types of cells in nervous tissue? |
|
Definition
| glial cells (neuroglia-90%) and ganglion |
|
|
Term
| What are the three classification of neurons? |
|
Definition
| Sensory, interneurons, and motor neurons. |
|
|
Term
| Sensory neurons... (function) |
|
Definition
| transmit sensory information to the CNS |
|
|
Term
| Motor neurons... (function) |
|
Definition
| transmits info to glands and muscles |
|
|
Term
| interneurons... (function) |
|
Definition
| transmit information between different parts of the CNS |
|
|
Term
| What are the six types of neuroglia? |
|
Definition
Located in the CNS:
oligodendrocytes
ependymal cells
microglia
astrocytes (most abundant glial cells)
Located in the PNS:
schwann
satellite cells |
|
|
Term
| What are the function of oligodendrocyte neuroglia cells? |
|
Definition
| they form the myelin sheath (speeds up action potential transmission along the axon) around some neurons |
|
|
Term
| What are the function of ependymal neuroglia cells? |
|
Definition
| line the cavities within the CNS and produce and circulate cerebral spinal fluid |
|
|
Term
| What are the function of microglia neuroglia cells? |
|
Definition
| Immune functions: remove debris, damages cells, microorganisms, and other foreign material. |
|
|
Term
| What are the functions of astrocyte neuroglia cells? |
|
Definition
form supportive network
create blood brain barrier
regulates blood flow
regulates composition of cerebral spinal fluid
take up glucose from blood and convert it to lactate
produce chemicals that stimulate neuron grown and form synapses
regulate signaling between neurons
create scar tissue |
|
|
Term
| What are the function of schwann neuroglia cells? |
|
Definition
| create the myelin sheath alone some axons |
|
|
Term
| What are the functions of satellite neuroglia cells? |
|
Definition
surround ganglia and create electrical insulation for the neurons
regulate fluid composition within the ganglia |
|
|
