nervous system Flashcards
what is the cerebrum?
outer layer & largest part of the brain
What does the cerebrum do?
site of integration
What is the outer layer of the cerebrum?
cerebral cortex
What is the outside of the cerebrum covered by?
sulci and gyri
What is a sulci?
a valley or indent
What is a gyri?
a peak
How many lobes is the cerebrum?
4
How many hemisphere does the cerebrum have?
2 (left; right)
What connects the two hemispheres?
the corpus callosum
What is the diencephalon?
the interbrain- deep within the brain
What does the diencephalon do?
connects the cerebrum to the brain stem
What does the diencephalon contain?
thalamus, hypothalamus, and pituitary gland
What is the pituitary gland?
the master endocrine gland-controls other hormones releasing glands
What does the brain stem do?
attaches the spinal cord to the cerebrum
What does the brain stem control?
basic needs and determines where information entering and leaving the brain needs to go
What does the brain stem consist of?
midbrain, pons, medulla oblongata
What is the cerebellum?
“little brain”
What does the cerebellum do?
muscle memory and muscle coordination
What is the function of the front lobe?
executive function: planning, organizing, self monitoring, personality, decision making
What does the front lobe contain?
motor cortex and broca’s area
What is the motor cortex?
starts all movement
What is the broca’s area?
allows us to form speech
What does the parietal lobe contain?
sensory cortex and wernicke’s area
What is the sensory cortex?
receives most sensory information