CNS & PNS Quiz Flashcards
central nervous system
brain and spinal cord
cns tract
bundle of axons
cns nucleus
group of cell bodies in the cns
peripheral nervous system
nervous system outside the brain and spinal cord
pns nerve
bundle of axons
pns ganglion
group of cell bodies in the pns
How does the cns form?
the cns forms as a hollow tube during development and develops into the forebrain, midbrain, hindbrain, spinal cord
What does the cns include?
forebrain, midbrain, hindbrain, and spinal cord
What is the ridge on a brain?
gyrus
What is the groove on a brain?
sulcus or fissure
outer cortex
gray matter
inner cortex
white matter
frontal lobe
largest of the brain involves personality, decision-making, and movement, and broca’s area
parietal lobe
middle of the brain, next to frontal, interprets pain, identifying objects,
temporal lobe
under the frontal lobe, short term memory, speech, auditory processing
occipital lobe
in the back of the brain and is responsible for vision
What do meninges do?
cushions the brain and spinal cord with the dura mater, arachnoid mater, and pia mater
What do ventricles do?
protect the brain with cerebrospinal fluid
hydrocephalus
too much cerebrospinal fluid in the brain
somatic nervous system
operates the muscles of the body and the sensory neurons that
bring information into the central nervous system.
autonomic nervous system
regulates general body activity and internal activity like organs
How is the autonomic nervous system separated?
the parasympathetic and sympathetic nervous system
sympathetic nervous system
copes with arousal and demands like flight or fight
parasympathetic nervous system
helps the body calm down and restore energy
Proliferation
the birth and division of new neurons
migration
neurons travel along radial glia to their destinations
circuit formation
neurons send processes
to target cells and form functional connections
hypothalumus
body temperature, synchronizes sleep patterns, controls hunger and thirst and also plays a role in some aspects of memory and emotion.
cerebellum
function is to coordinate voluntary muscle movements and to maintain posture, balance and equilibrium
medulla
Functions of the medulla regulate many bodily activities, including heart rhythm, breathing, blood flow, and oxygen and carbon dioxide levels. vomiting, sneezing , coughing
pons
tear production, chewing, blinking, focusing vision, balance, hearing and facial expression.
