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44 Cards in this Set
- Front
- Back
- 3rd side (hint)
Olfactory |
Smell |
Nose |
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Optic |
Sight |
Eyes |
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Oculomotor |
Movement of the eyeball; constriction of pull (up and in) |
Rolling eyes |
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Trochlear |
Movement of eyeball(down and in) |
Cross eyes |
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Trigeminal |
Sensation in face, scalp, and teeth; contraction of chewing muscles (Touch, Forehead and Cheek, Clench Teeth) |
Triangle on face |
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Abducens |
Movement of the eyeball (side to side) |
Being nosey |
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Facial |
Taste, contraction of facial muscles; secretion of saliva (Taste for the Anterior 2/3 of Tongue) |
Smile |
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Acoustic |
Hearing, sense of equilibrium |
Hearing aid |
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Glossopharyngeal |
Taste, sensory for vital signs, contraction of pharynx, secretion of saliva (posterior 1/3 of the tongue) |
Speech |
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Vagus |
Sensory in vital signs, speaking, decreases heart rate, peristalsis (contraction of GI) |
Defecation (slowed heart rate) |
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Spinal Accessory |
Contraction of neck and shoulder muscles |
Shrugging shoulder |
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Hypogiossal |
Movement of tongue |
Lick |
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Medulla |
Vital signs: cardiac centers (regulate heart rate), vasomotor centers (regulate the diameter of blood vessels) BLOOD PRESSURE, respiratory centers (regulate breathing) |
Reflex center: cough, sneezing, swallowing, and vomitting (Spinal cord to the pons and is anterior to the cerebellum |
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Pons - "bridge" |
Two respiratory centers that work with the medulla to produce normal breathing |
Upper part of medulla |
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Midbrain |
Visual and auditory reflexes (Visual reflex - duck or twist away from seeing something) (Auditory reflex - turning to a sound) |
Pons to the hypothalamus |
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Cerebellum |
Movement - coordination, regulation of muscle tone, maintenance of posture and equilibrium. Certain sensory functions |
Inferior to occipital lobes of cerebrum. Control movement without thinking about it Ex walking.. |
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Hypothalamus |
1. ADH and oxytocin 2. Regulation of body temp 3. Regulation of food intake 4.Integration of ANS 5. Stimulation of visceral responses 6. Regulation of body rhythms 7. Release hormone |
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Function of the nervous system |
1.To detect changes and feel sensations 2.To initiate appropriate responses to changes 3.To organize information for immediate use and store it for future use |
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2 divisions of nervous system |
1.central nervous system (CNS) consists of the brain. 2.peripheral nervous system(PNS) consists of cranial nerves and spinal nerves |
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Nerve cells |
Neurons, or nerve fibers |
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Myelin Sheath |
A phospholipid that electrically insulates neurons from one another |
Without it neurons will short - circuit just as wire |
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3 groups of neurons |
Sensory, motor, interneurons |
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Sensory neurons |
Carry impulses from receptors to the central nervous system |
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Receptors |
Detect external or internal changes and send the information to the CNS in the form impulses by way of the different neurons |
Detect a change (the stimulus) and generate impulses |
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Motor neurons |
Carry impulses from the central nervous system to effectors. 2 effectors of muscles and glands |
Transmit impulses from CNS to effector |
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Nerve |
A group of axons and/or dendrites many Neurons, with blood vessels and connective tissue |
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Sensory nerves |
Made only of sensory neurons |
Transmit impulses from receptors to the CNS |
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Motor nerves |
Made only of motor Neurons, autonomic nerves are motor nerves |
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Mixed nerve |
Contains both sensory and motor neurons. Most of our peripheral nerves, such as the sciatic nerves in the legs, are mixed nerves |
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Spinal cord |
Traits impulses to and from the brain and is the integrating center for the spinal cord reflexes |
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Spinal nerves |
31 pairs |
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Thoracic |
12 pairs |
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Reflex |
An involuntary response to a stimulus, that is, an automatic action stimulated by a specific change of some kind |
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Spinal cord reflexes |
Don't depend directly on the brain, although the brain may inhibit or enhance them |
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Effector |
Performs it's characteristic action |
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Brain |
Made of approximately 100 billion neurons and contains trillions of synapses, all of which functions as an integrated whole |
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Ventricles |
4 cavities within the brain: 2 lateral ventricles, the third ventricle, 4 ventricle |
They lined with ciliated ependymal cells and filled with CSF |
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Thalamus |
Concerned with sensations - integrates the impulses from the cutaneous receptors and from the cerebellum suppresses unimportant sensations |
Superior to the hypothalamus and inferior to the cerebrum |
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Association areas |
Personality, sense of humor, ability to reason and use logic |
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Occipital lobes |
Visual areas - interpret what is seen |
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Temporal lobes |
Olfactory areas - sense of smell Auditory areas - for hearing |
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Parietal lobes |
General sensory areas, feel and interpret cutaneous sensations, taste areas |
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Cerebrum |
Consists of 2 hemispheres connected by the corpus callosum. Surface is gray matter is called cerebral cortex which is folded extensively. |
Largest part of the human brain. A band of 200 million neurons that connects the right and left hemispheres |
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Frontal lobes |
Motor areas - generate the impulses for voluntary movement. Left motor area controls the right side and the right motor area controls that left side |
Left lobe for most right - handed people Broca's Motor Speech controls mouth movement |