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Cricks Nerve Divisio
Cricks Nerve Divisions Flash Cards
| Question | Answer |
|---|---|
| What structure is made of axons and connective tissue? | nerve |
| What structure emerges from the brain and provides nerves to the head (cranium)? | cranial nerve |
| What structures emerge from the spinal cord and travel to various parts of the body to provide nervous coverage to each region? | spinal nerve |
| What is a small mass of nervous tisses located away from the spinal cord and are closely associated with cranial and spinal nerves? | ganglia |
| What nerve structures are found inside the hollow organs of the digestive tract? | enteric plexus |
| What nerve structure carries impulses from the brain to distant structures that respond to the impulses? | efferent neurons |
| What function of the nerves involves interpreting stimuli and generating impulses to respond to those stimuli? | integrative function |
| What function of the nerves involves interpreting the internal and external environment of the body, and sending that info as impulses to the brain? | sensory function |
| What function of the nerves involves reacting to impulses generated by the brain and spinal cord, then causing action as a result? | motor function |
| What type of nerve structures analyse and or store sensory impulses, then generate responses based on that information? | interneuron |
| What type of nerve carries motor impulses from the brain or spinal cord? | efferent nerve |
| What types of cells respond to motor impulses by doing some sort of action? | effectors |
| What part of the peripheral nervous system collects nerve impulses from the head, body wall, limbs as well as from the sensory organs AND innervates the skeletal muscle system? | somatic nervous system |
| What part of the peripheral nervous system received sensory impulses from the visceral organs as well as provides impulses to smooth muscles? | autonomic nervous system |
| What part of the peripheral nervous system received impulses from the walls of the digestive tract and governs contraction and secretions by those organs? | enteric nervous system |
| What does the sympathetic nervous system cause when it is innervated? | fight or flight syndrome (excitation) |
| What does the parasympathetic nervous system cause when it is innervated? | the opposite of fight or flight (calming- return to normal) |
| What is the basic structure of the nervous system- that are specialized for nerve impulse conduction? | neuron |
| What is the function of a dendrite? | The part of a neuron that received impulses from adjacent cells |
| What is the function of the cell body? | metabolic processes of the cell happen here (see sophomore bio I notes) |
| What is the function of the nucleus? | to control the activities of the cell |
| What is the function of the axon? | to conduct impulses from the cell to the dendrites of an adjacent cell |
| What is the function of the axon hillock? | When the cell body generates an impulse, it starts at the axon hillock |
| What is the function of an axon collateral? | to branch out from the axon and deliver impulses to more than just one cell location |
| What is the function of the Shwann cell? | they surround axons and grow myelin sheaths that insulate the axon and speed impulse conduction |
| What is the function of myelin sheath? | to insulate the axon and speed impulse conduction |
| What is the function of the Node of Ranvier? | these are gaps in the the myelin sheath that wraps the axon. the gaps play a role in impulse conduction. |
| What is the function of an axon terminal? | to communicate impulses to adjacent cells |
| What is the function of the synaptic bulb? | to release neurotransmitters into the synaptic cleft, causing an reaction from the receiving cell |
Created by:
russcrick
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