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37 Cards in this Set
- Front
- Back
- 3rd side (hint)
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what is the central nervous system made up of? |
Cerebrum cerebellum brain stem spinal cord |
4 structures |
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What are the 2 structures of the Nervous system? |
The somatic and autonomic |
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Structures within the Somatic nervous system and its role |
Spinal nerves Innervates skeletal muscle sensory information from skin,muscles,and joints |
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role of Autonomic Nervous System |
innervates organs, blood vessels, and glands (sympathetic and parasympathetic) |
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What are the two layers of the dura mater |
it has two layers: 1. inner layer bends over to form a fold (falx cerebri) that separates the cerebral hemispheres 2. second fold (tentorium) holds the cerebrum up off the cerebellum |
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Role of the dura mater |
- between the layers of the dura at the base of each fold, venous blood drains out of the brain in a sinus - bridging veins carry blood from the brain across the inner layer of the dura mater to the sinus - the sinus collects the cerebral spinal fluid |
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What is the arachnoid and its function? |
the layer beneath the dura mater that holds the CSF (cerebral spinal fluid) to cushion the brain |
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What is the location and role of the pia mater? |
Lies right on the surface of the brain, holds the cerebral arteries in place |
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Location and function Cerebrospinal fluid? |
it leaks out of capillaries inside the brains hollow ventricles, where the composition of it is controlled by the brain blood barrier. it circulates around the brain and spinal cord in the subarachnoid space |
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What are ventricles in the brain? |
they are csf filled caverns and canals inside the brain |
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What secretes csf? |
Choroid plexus - specialises tissue in the ventricles |
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identify the sides of the spine where the sensory and motor neurons go |
left spine - ascending sensory right spine - descending motor |
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what are the meninges of the brain? |
dura mater arachnoid space pia mater |
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define gyrus/gyri |
A ridge on the cerebral cortex |
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define sulcus/sulci |
a depression/furrow in the brain |
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define fissures of the brain |
divides the lobes and hemispheres |
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what is the blood brain barrier and its function |
- a highly selective permeability barrier that separates circulating blood and extracellular fluid in the CNS - regulates the movement of ions, proteins, and other blood borne substances into the CNS |
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What is the role of the frontal lobe |
responsible for the motor and anticipation and speech production |
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role of parietal lobe |
somatosensory |
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Temporal lobe: |
responsible for hearing and memory |
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occipital lobe |
responsible for vision |
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what is area 4 of the brain? |
primary motor cortex |
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what is area 6 of the brain? |
premotor cortex |
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what is area 17 of the brain |
primary visual cortex |
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what areas does the somatosensory cortex cover? |
1 2 & 3 |
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what sensory region covers area 17, 18 & 19? |
visual cortex |
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what areas does the auditory cortex cover? |
41 & 42 |
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what sensory region covers area 43? |
gustatory cortex |
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what is wernicke's area? |
its area 22 where the comprehension and understanding of written and spoken language |
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Broca's Area |
it is area 44 and 45 where it is isolated to the dominant hemisphere and is linked to speech production |
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What is the function of the thalamus? |
Relay of sensory and motor signals. It involves consciousness, alertness and sleep |
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Describe the function of the hypothalamus |
Its the link between the nervous and endocrine system where it controls homeostasis (temperature, Hunger, Attachment, Thirst, fatigue, sleep and stress) |
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What part of the lower brain stem controls the autonomic functions? ie heart rate, respiration, coughing, swallowing, vomitting and sneezing? |
medulla oblongata |
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Where is the pons located and what is its function? |
relays between the cerebrum and cerebellum. Hearing, equilibrium, taste, facial sensation and motor control |
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The cerebellum: |
is important for motor control ie co ordination, precision and timing. may also involve attentive and language as well as fear and pleasure |
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what are the three structures of the limbic system and what do they associate with |
telencephalon diencephalon mesencephalon
associates with emotion, behaviour, motivation and memory |
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what are the twelve cranial nerves? |
O O O T T A F V G V A H oh oh oh try try again failure victory gives value and happiness
Olfactory, Optic, occulomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal |
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