neurons brain study set

ascending tracts carry…?

body to brain! (inwards)

sensory information

descending tracts carry…?

brain to body! (outwards)

motor information

what conducts nerve impulses and serves as center for spinal reflexes?

spinal cord

which is closer to frontal lobe: the motor cortex or sensory cortex?

motor cortex

what is first (closer to frontal lobe): the optic chiasma or pituitary gland?

optic chiasma

gray matter does…?

impulses are received, generated, and interpreted

corpus callosum function?

relay center

connects cerebral hemispheres and allows transfer of information from both hemispheres

hippocampus function?

memory

PNS consists of…?

motor nerves (out) + sensory nerves (in)

CNS consists of…?

spinal cord + brain

motor nerves consist of…?

somatic (voluntary) and automatic (involuntary)

brainstem function…?

controls autonomic functions

respiration

blood pressure

heart rate

cerebellum function?

unconscious movement and coordination

limbic system

emotions + mood

thalamus

pituitary gland

hypothalamus

amygdala

cerebrum function

site of conscious human behavior + thought

why is white matter deep to gray matter?

gray matter processing information and white matter transmitting signals throughout the brain - more efficient that way

frontal lobe association function?

executive functions: planning, decision-making, and regulating social behavior

frontal lobe motor cortex function?

controls movement of voluntary muscles

temporal lobe function?

hearing + smelling

occipital lobe function?

vision

parietal somatosensory cortex function?

sensory input from skin (temp, pressure, touch, pain)

parietal motor cortex function?

sensory elaboration

mathematical reasoning

giri vs sulci

giri = bump / hump / top part

sulci = fissure / rift / bottom part

cerebrospinal fluid function?

shock absorption and waste transport