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NPB 101

Lecture 7

QuestionAnswer
What are the four different nervous systems? Autonomic, somatic, enteric, central
What systems are controlled by the autonomic nervous system? Cardiac muscle, smooth muscle, exocrine glands, endocrine glands
Where do afferent nerves travel in the spinal cord and brain? In the dorsal roots in the spine and the cranial nerves at the base of the brain
Trigmeal1: Use in the body 2: Sensory 3: Motor Face and head Sensory fibers: Trigeminal nerve for sensory face and head Motor: muscle of mastication
Facia: 1: Use in the body 2: Sensory 3: Motor Anterior tongue Sensory: Taste buds on anterior tongue Motor: Muscles of face, scalp, salivary, and tear glands
Vestibulocochlear1: Use in the body 2: Sensory 3: Motor Auditory/ Linear and rotational movement Sensory: Vestibular and cohlear branch for the cochlea, vestibule, and semicircular canals of the ears No motor
Glossopharyngeal1: Use in the body 2: Sensory 3: Motor Posterior tongue, pharynx, carotid Sensory: Taste buds on posterior tongue; receptors in pharynx, and carotid sinus Motor: Muscles of pharynx and parotid gland
Vagus1: Use in the body 2: Sensory 3: Motor Thoracic and Abdominal cavities Sensory: Taste bud and tongue and pharynx and the thoracic and abdominal organs Motor: Muscles of pharynx and larynx; thoracic and abdominal organs
What is the dorsal ganglion root, where is it, and what does it do? A nerve cluster at each level of the spine on the dorsal side that form nerve synapses onto different nerve fibers
What side is the ventral side and what signals come from it? The front side of the body and the efferent signals
What are the four levels of the body that efferent signals leave from? Cranial, Thoracid, Lumbar, Sacral
What are the four levels that the efferent signals leave from in the brain stem? Oculomotor, facial, glossopharyngeal, and vagus
What is the grandmotor neuron of the face? What does it do? Facial nerve. Carries signals out to the muscles of the face and drives the salivary and lacrimal glands
What kinds of signals do the efferent signals send from the spine? Autonomic and motor signals
What are the two ways to look at efferent signals in the body? Vertically where you look at the signals coming out at the brain and then down, and horizontally where you look at the signals leaving the spine at each level
Why is the pre-synaptic cell going from the spine to the adrenal medulla odd? Why does it function like this. The pre-synaptic cell doesn't end at a ganglion like it does in the rest of the body. It ends in the organ itself. This is because the signal is able to be changed into a hormonal signal and transferred throughout the body much faster this way.
Why is there a pharmacological difference in the receptors on the pre and post synaptic terminals for the parasympathetic system? Because that way different neurotransmitters can be used to deliver the same message
Parasympathetic is rest or stress? Rest
Sympathetic is rest or stress? Stress
In the parasympathetic system which is longer: The post or the pre synaptic fibers Pre-synaptic. Much longer.
In the sympathetic nervous system which is longer: the pre or the post synaptic fibers? Why Post-synaptic. This is because if the pre-synaptic fibers are short they can quickly diverge into many other systems
At what points along the spine and brain does the parasympathetic fibers exit? Brain stem and sacral spinal cord
What what point to the sympathetic nervous system exit the spine? Thoracic and lumbar regions
Name three automated responses in the body Saliva secretion, Urinary bladder control, Heart control
Is autonomic control of the body a result of the parasympathetic or sympathetic nervous systems? Both. Pending on the stimuli both have an affect on the bodies automated systems
Olfactory 1: Use in the body 2: Sensory 3: Motor Smell Sensory fibers used to smell No motor
Optic 1: Use in the body 2: Sensory 3: Motor Vision Sensory fibers used for sight Motor: 3 fibers, Ocularmotor nerve, Trochlear nerve, Abducen nerve. All used for exterior muscle movement
Created by: 24rory
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