Term
|
Definition
| tough fibrous sheath enclosing fascicles. Contains all parts of a nerve fiber |
|
|
Term
|
Definition
| Coarser connective tissue wrapping groups of endoneurium bound fibers in a fascicles |
|
|
Term
|
Definition
| Surrounds each axon. Loose connective tissue that encloses the axon and myelin sheath |
|
|
Term
|
Definition
| Hypoglossal, has a motor function, no sensory function, does not contain parasympathetic fibers |
|
|
Term
|
Definition
| Accessory, has a motor function, no sensory function, does not contain parasympathetic fibers |
|
|
Term
|
Definition
| Vagus, Has a motor function, has a sensory function(taste) and contains parasympathetic fibers |
|
|
Term
|
Definition
| Glosspharyngeal, has motor function, sensory function (taste), and contains parasympathetic fibers |
|
|
Term
|
Definition
| Vestibulocochlear, hos some motor function, sensory function(balance and hearing), no parasympathetic fibers |
|
|
Term
|
Definition
| Facial, has a motor function, sensory function(taste) and has parasympathetic fibers |
|
|
Term
|
Definition
| Abducens, has a motor function, no sensory function, does not contain parasympathetic fibers |
|
|
Term
|
Definition
| Trigeminal, has motor function, sensory function(general sensation), does not contain parasympathetic fibers |
|
|
Term
|
Definition
| Trochlear, has a motor function, no sensory function, does not contain parasympathetic fibers |
|
|
Term
|
Definition
| Occulomotor, has a motor function, no sensory function or parasympathetic fibers |
|
|
Term
|
Definition
| Optic, no motor function, has a sensory function(vision), does not contain parasympathetic fibers |
|
|
Term
|
Definition
| Olfactory, no motor function, has a sensory function(smell), no parasympathetic fibers |
|
|
Term
|
Definition
| Dendritic end organs or parts of other cell types, specilized to repond to stimulus. Cliassified by type of stimulus they detect, body location and structural complexity. |
|
|
Term
|
Definition
| Frontal Lobe to center cerebral hemisphere and terminates in primary olfactory cortex. |
|
|
Term
|
Definition
| Purely sensory' carry afferent impulses for smell |
|
|
Term
|
Definition
| Enter thalamus and synapses there. Thalamic fibers run to occipital cortex, where visual interpretation occurs. |
|
|
Term
|
Definition
| Purely sensory; carries afferent impulses for vision |
|
|
Term
| Occulomotor Nerve Location |
|
Definition
|
|
Term
| Occulomotor Nerve Function |
|
Definition
| Chiefly motor nerves, contain a few propriorecptors afferents |
|
|
Term
|
Definition
| Part of the Occulomotor Nerve. Run to 4 of the extrinsic eye muscles that help direct the eyeball and to levitator palpebrae superioris muscle, which raises upper eyelid |
|
|
Term
| Parasympathetic Motor Fiber |
|
Definition
| Part of the occulomotor nerve. Run to sphencter pupillae, which causes pupil to constrict and to ciliary muscle controlling lense shape for visual focusing. Some parasympathetic cell bodies are in the ciliary ganglia. |
|
|
Term
|
Definition
| Part of the Occulomotor nerve. Run from the same 4 extrinsic eye muscles to the mid-brain. |
|
|
Term
|
Definition
| Medial rectus muscle, superior rectus muscle, levator palpebrae muscle, inferior oblique muscle, inferior rectus muscle. |
|
|
Term
|
Definition
|
|
Term
| Trigeminal Nerves Location |
|
Definition
| Largest of cranial nerves; fibers extend from pons to face |
|
|
Term
|
Definition
| Primarily motor nerves; supply somatic fibers to and carry proprioceptors from the superior oblique muscle |
|
|
Term
|
Definition
| Function of Trigeminal Nerve: Converys sensory impulses from skin of anterior scalp, upper eyelid, nose and nasal cavity mucosa, cornea and lacrimal gland |
|
|
Term
|
Definition
| Function of Trigeminal Nerve: Conveys sensory impulse from nasal cavity mucosa, palate, upper teeth, skin of cheek, upper lip and lower eye lid. |
|
|
Term
|
Definition
| Function of Trigeminal Nerve: Convey sensory impulses from anterior tongue, lower teeth, skin of chin, temporal region of scalp; supplies motor fibers to and carries proprioceptors fibers from muscles of mastication |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Somatic motor fibers to lateral rectus muscles. Conveys propriceptor impulses from the same muscle to the brain |
|
|
Term
|
Definition
| Issues form pons, just lateral to abducens nerves |
|
|
Term
|
Definition
| Mixed nerves that are the chief motor nerves of faces; has 5 major branches |
|
|
Term
| Major Branches of Facial Nerve |
|
Definition
| Temporal, Zygomatic, Buccal, Mandibular, and Cervical |
|
|
Term
| Vestibulocochlear Nerve Location |
|
Definition
| Brain stem @ pons-medulla border and from hearing receptor in cochlea |
|
|
Term
| Vestibulocochlear Nerve Function |
|
Definition
| Vestibular branch transmitts afferent impulses for sense of equilibrium, sense of hearing, and sensory cell bodies located in spinal ganglion within cochlea |
|
|
Term
| Glossopharyngeal Nerve Location |
|
Definition
|
|
Term
| Glossopharyngeal Nerve Function |
|
Definition
| Mixed nerves to the innervate part of tongue, provides somatic muscle fibers to and proprioceptors fibers from a superior pharyngeal muscle. Provides parasympathetic motor fibers to parotid salivary glands located in otic ganglion. Conducts taste and general sensory impulses from pharynx and posterior tongue. Regulates respiratory rate and depth. Monitors blood pressure. Sensory neuron cell bodies located in superior ganglia. |
|
|
Term
|
Definition
| Only cranial nerves to extend beyond head and neck region. Emerge from medulla |
|
|
Term
|
Definition
| Mixed nerves; Most are motor nerve fibers, some parasympathetic Supply head and lungs; involved in regulation of heart rate, breathing and digestive system activity. Taste buds of posterior tongue and pharynx. Carry proprioceptor fibers from muscles of larynx and pharynx. |
|
|
Term
|
Definition
| Lateral Aspect of Medulla |
|
|
Term
|
Definition
| Supplies motor neuron fibers to laryn, pharynx and soft palates. Spinal root supplies motor fibers to trapezius and sternocleidomastoid muscle, moving head, neck and conveys proprioceptor impulses from same muscles. |
|
|
Term
| Hypoglossal Nerve Location |
|
Definition
| A series of root from medulla |
|
|
Term
| Hypoglossal Nerve Function |
|
Definition
| Carries somatic motor fibers to intrinsic and extrinsic muscles of tongue and proprioceptor fibers fro, the same muscles to brain stem. Allows for food manipulation and mixing by tongue and some movements that contribute to swallowing and speech. |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
| Components of Reflex: Receptor |
|
Definition
|
|
Term
| Components of Reflex: Sensory Neuron |
|
Definition
| Transmits Afferent Impulses to the CNS |
|
|
Term
| Components of Reflex: Integration Center |
|
Definition
| may be a single synapse or chain of multiple synapses. Always within the cns. |
|
|
Term
| Components of Reflex: Effector |
|
Definition
| Muscle fiber or gland cell that responds to the efferent impulses |
|
|
Term
|
Definition
| Autonomic, subconscious response to stimuli within or outside the body. Help to maintain homeostasis by controlling many involuntary processes such as heart rate, breathing rate and blood pressure. |
|
|
Term
|
Definition
| activates skeletal muscle |
|
|
Term
|
Definition
| activates visceral effectors |
|
|
Term
|
Definition
| Mediated by spinal cord. Occur without direct involvement of high brain centers |
|
|
