MusculoNeural Flashcards
(22 cards)
What are the two parts of the nervous system?
CNS
PNS
afferent
sensory
efferent?
motor
What is the cerebral cortex?
cerebrums outer layer of nerve cells
What are the cerebral cortexs functions?
thought
memory
sensation
reasoning
voluntary movement
What are the lobes of the brain?
frontal
parietal
occipital
temporal
frontal?
personality
behavior
emotions
intellectual functions
What does the precentral gyrus of the frontal lobe do?
initiates voluntary movement
What does the parietal lobes postcentral gyrus do?
primary center for sensation
occipital lobe funtion?
primary visual receptor center
temporal lobe function?
auditory reception center, taste, and smell
What is wernickes area in temproral lobes functions?
language comprehension
What happens when wernickes area is damaged in someones dominant hemisphere?
receptive aphasia (the person hears sounds, but it has no meaning, like hearing a foreign language)
What is brocas area of the frontal lobe?
mediates motor speech.
What happens when the brocas area gets injured in the dominant area?
the person gets expressive aphasia (the person can understand language
Thalamus functions?
this is where sensory pathways of the spinal cord, cerebellum, and brain stem form synapses. MAIN RELAY STATION
Hypothalamus functions?
appetite
sex drive
temperature
heart rate
BP
sleep anterior posterior gland regulation
coordination of autonomic nervous system(stress and emotional response)
cerebellum functions?
coordination, equilibrium, muscle tone, adjusts voluntary movements
Brainstem division and what cranial nerves originate here?
Midbrain
Pons
Medulla
III XII
What is the midbrains functions?
has many motor neurons and tracts
merges into thalamus and hypothalamus
What is the pons?
enlarged area containing both ascending and descing tracts
What is the medulla?
continuation of the spinal cord in the brain; contains all fiber tracts connecting brain and spinal cord
