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Chapter 12

The Central Nervous System

QuestionAnswer
the CNS consists of: brain & spinal cord
what are the 4 principal parts of the brain? cerebrum, cerebellum, brain stem & diencephalon
what system integrates sensory information? CNS
the CNS coordinates: conscious & unconscious activity
what part of the brain coordinates voluntary movement such as balance, coordination, speech & posture? cerebellum
the ___ receives information from sensory systems cerebellum
what part of the brain regulates motor movement? cerebellum
the cerebellum is located in what ventricle? 4th
the brain stem consists of: midbrain, medulla & pons
the brainstem regulates: cardiac and respiratory function, consciousness & sleep cycle
the medulla oblongata joins the spinal cord at ___ foreamen magnum
the midbrain surrounds the __ cerebral aqueduct
the corpora quadrigemina consists of: superior colliculi and inferior colliculi
superior colliculi visual reflex centers
inferior colliculi auditory relay centers
the medulla oblongata controls: heart rate, blood pressure & respiratory rhythm
vomitting, coughing, sneezing and hiccups are regulated by the: medulla oblongata
the diencephalon includes what 3 structures? thalamus, hypothalamus and epithalamus
the diencephalon is located in the __ ventricle 3rd
thalamus acts as a router & sends sensory info to cerebral cortex
key role in mediating sensation, motor activities and learning & memory thalamus
hypothalamus functions in: regulates body temperature, food intake, water & thirst
suprachiasaitic nucleus biological clock for sleep cycle
the space between the pia mater and arachnoid is called the: subarachoid
epithalamus includes the: pineal gland - which secretes melatonin
what is the largest region of the brain and performs the highest functions? cerebellum
the cerebrum is made up of white matter & cerebral cortex
awareness, understanding and memory storage take places here cerebrum
the blood brain barrier allows: water, respiratory gases, nutrients & fat molecules to enter neural tissue
the blood brain barrier is composed of: capillaries and astrocytes
__ blocks water-soluble and other harmful substances blood brain barrier
brain preference for energy? glucose
the ___ plays a major role in thinking,language and emotion cerebellum
white matter is a ___ sheath myelinated
memory is the ___ and ___ of information storage & retrieval
the ability to learn & consciously remember information is what type of memory? declarative memory
procedural memory learning of motor skills performed w/o conscious thought
broca's area produce and processlanguage
the ability to understand speech but not produce words broca's euphasia
all neurons are in cortex are called: interneurons
the cerebral cortex contains 3 types of function areas. what are they? sensory areas, motor areas, and association areas
sensory areas are concerned with: conscious awareness of sensation in cortex
the sensory areas are located in what lobes? parietal, insula, temporal and occipital
motor areas controls: voluntary movement
the motor areas include: primary motor cortex, premotor cortex, broca's area and frontal eye field
primary motor cortex conscious control of voluntary movement
premotor cortex controls: learned motor skills
frontal eye field controls: voluntary eye movement
the ___ area stores information as memory association
what area exchanges and integrates information? association
this type of area helps you tie the old information with the new information. association
what is the cerebrum white matter responsible for? communication btw the hemispheres
what are the 3 regions of the cerebrum? cerebral cortex, white matter and basal nuclei
the basal nuclei is composed of __ matter gray
the basal nuclei functions in : motor control, regulating attention and cognition
what is cerebrospinal fluid? watery cushion fluid that protects & nourishes brain -also carries chemical signals
the cerebrospinal fluid travels through what structure? cerebral aqueduct
what 4 things protect the brain? skull, meninges, CSF and blood brain barrier
the meninges, contains cerebrospinal fluid which ___ cover and protects the CNS
what are the 3 layers of the meninges? dura mater, pia mater and arachnoid mater
epilespsy seizure disorders
cerebrospinal fluid flow disorder causing too much fluid in ventricles is called: hydrocephalus
concussion temporary damage to brain
contusion permanent damage to brain
subarachroid hemorrhage bleeding under brain
cerebral edema swelling under brain
most outer layer meninge dura mater
middle layer meninge pia mater
the spiderlike layer memninge arachnoid mater
the left hemisphere: controls language, math & logic
the right hemisphere: intuition, creative side
responsible for communication btw hemispheres and cerebral cortex. white matter
the spinal cord contains: bone, meninges and CSF
the spinal cord begins at the foreamen magnum
the spinal cord provides: 2-way communication to and from the brain
the dorsal horns: receives the information
the frontal lobe and parietal lobe are separated by the ___ central sulcus
the 2 hemispheres are separated by which fissure? longitudinal fissure
what is a tract? a bundle of nerve fibers
the vestibulospinal tracts maintain: posture
the spinothalamic tract involves: pain, temperature, touch & pressure
brains are neuroplastic meaning we can: train our brains
pyramidal cell bodies are found where? the cerebral cortex
the visual association area helps us put things together. where is it located? surrounds primary visual cortex
primary visual cortex visual info from retinas - found in occipital lobe
what does the primary auditory association area do and where is it located? interprets info from ear to ear - temporal lobe
the auditory association area: discerns & interprets sounds
the occipital lobe processes: visual cues
the parietal lobe is in control of: sensation, pain, touch & pressure
the brain stem connects the: cerebrum, cerebellum and spinal cord
the brain stem connects __ of the cranial nerves 10
there are no postganglionic neurons in the ___ adrenal medulla
the thalamus does not include smell and __ propriceptors
the cerebrospinal fluid circulates around: subarachnoid mater & ventricles
the sensory information goes to the __ side, then the dorsal root posterior
motor information goes to the __ then the dorsal root anterior
the adrenal medulla consists of: epinephrine & norephirine
ANS motor is located in the __ horn lateral
somatic nervous system motor is located in the __ horn anterior
sensation awareness
perception processing that awareness
groups of cell bodies in the CNS are called: nuclei
the cerebrum acts as the: integration center/ sensory perception
the brainstem provides innervation to the head & neck by our: cranial nerves
frontal lobe is responsible for: planning , motivation, emotion, social judgemente
temporal lobe is responsible for: hearing, memory, language
which lobe is for vision? occipital lobe
Broca's area is found in which lobe and what side of the brain? frontal - left
the basal nucleu help control: movements
the brain is protected by: meninges, bone, cerebrospinal fluid & blood-brain barrier
the brainstem functions in: controlling behaviors necessary for survival
the __ makes up 80% of the brain cerebral cortex
Created by: Mariahj25