Motor Physio 1 Flashcards
——serves as a conduit for signal from—— to—— and vice versa
Spinal cord
periphery
brain
———-contains the final command pathway through which movement is executed
Spinal cord
Mention 4 things your spinal cord can do even without higher centers
Walking movements Withdrawal of body parts from a stimulus Control blood flow GI movements Stiffen leg to support the body against gravity
Lower brain is made up of—-,—-,—,——-,—-,—— and——-
medulla
pons
mesencephalon(midbrain)
diencephalon(hypothalamus)
thalamus
cerebellum
basal ganglia
Lower brain help in the ——-and——
subconscious control
emotional patterns
——- is a large memory storehouse
Cortical or Higher brain
Cortical or Higher brain never functions alone
T/F
T
without the cerebral cortex, lower Brain functions are usually——-
not precise
——— is essential for the thought process
Cortical or Higher brain
idea of movement is generated in the————
cortical association areas
idea is then sent to ——where it is organized into——-
motor areas
motor commands
command is sent through ——to ——-for execution
brain stem
spinal cord
——- is the major relay station for all motor commands except——
Brain stem
those requiring great precision
——— is responsible for maintaining normal posture during motor activities
Brain stem
———provides the motor patterns necessary to maintain postural support
Basal ganglia
——-receives info from motor cortex on nature of intended movement
Cerebellum
——receives info from spinal cord on how well the movement is being performed
Cerebellum
all voluntary movements require a conscious activity in the cerebral cortex .
T/F
T
———divides the cerebral cortex into —— and ———
central sulcus
Motor cortex
Sensory cortex
MOTOR CORTEX occupies approximately——- of——-
posterior 1/3
frontal lobes
SOMATIC SENSORY CORTEX is——— to central sulcus
posterior
MOTOR CORTEX is divided into—-.
Which are????
3
primary motor cortex;pre motor area,supplemental motor area
State the brodmann’s area of the following primary motor cortex pre motor area supplemental motor area BROCA’s AREA weirnicke’s area
4 6 6 44 22
Which part of the motor cortex reps the face and mouth,arm and hand,trunk, and leg and foot area.
Primary motor cortex area
more than—- of the entire primary motor cortex is concerned with controlling—— and—-
half
the hands
muscles of speech
In the primary motor cortex, ——would cause—— of portion of muscle with high representation
-in areas of less representation like the trunk, ——-is required to cause contraction of group of muscles
point stimulation
contraction
electrical stimulation
nerve signals generated in the ———- cause pattern of movements involving groups of muscles thar perform specific tasks
Pre motor area
What parts of the brain make up the overall system for the control of complex patterns of coordinated muscle activity
Basal ganglia, premotor area, primary cortex area and thalamus
Which part of the motor cortex requires considerably stronger electrical impulse to cause muscle contraction here than in other areas
Supplemental motor area
Supplemental motor area works with——- to provide— movements,—, movements of——, and fixational movements of different segments of the body
premotor
attitudinal
positional
head and eye
Sylvia’s sulcus is the ———-
Lateral sulcus
Location of Broca’s area
lies immediately anterior to primary motor cortex and immediately above Sylvia fissure(lateral sulcus)
BROCA’s area processes information received from——into a detailed and coordinated pattern for———
weirnicke’s area
volcalization
BROCA’s area projects the packaged pattern through a speech articulation area in the——-
insula cortex
Location of the insula cortex ?
a part of the cerebral cortex folded deep within the lateral sulcus
Function of insula cortex ?
initiates appropriate movement of lip, tongue, and larynx to produce speech
if broc’a area is damaged by an embolism or thrombosis of a cerebral vessel,speech becomes— and words become——
slow
hard to come by
Voluntary eye movement field is located in ——immediately above——
premotor’s area
Broca’s area
damage to the voluntary eye movement field area prevents a person from——
-instead the eyes——- into specific objects
voluntarily moving their eyes to different objects
lock involuntarily
Which area controls blinking?
Voluntary eye movement field
The HEAD ROTATION AREA is slightly—— in the —-area
higher
motor association
——-stimulation elicits head rotation
electrical
HEAD ROTATION AREA is closely associated with——-
eye movement field
AREA FOR HAND SKILLS is in the—— and immediately——- to primary motor cortex area for the hands and fingers
premotor area
anterior
Tumors in the AREA FOR HAND SKILLS make hand movements——
uncoordinated and non purposeful
surgical removal of S-I cause no deficits in sensory processing to S-II whereas as ablation of S-II has gross effect on processing in S-I.
T/F
F
cortical lesions abolish somatic sensations.
T/F
F
Which modalities are most,middle, and least affected by sensory cortical lesions?
proprioception and fine touch are the most affected by cortical lesions
-temperature is less affected and pain is only slightly affected
Which sensory modalities are going to rerun first, second , and third after recovery from sensory cortical lesions
upon recovery, pain sensibility returns first, followed by temperature, and finally, proprioception and fine touch
perception is possible in the absence of cortex.
T/F
T
