brain/central nervous system flashcards

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central nervous system is made up of 2 parts

brain, spinal cord

Cerebral Hemispheres

form the superior part of the brain

Gyrus/Gyri

- elevated ridges of brain tissue, Surround sulci to help process more information

• Sulcus/Sulci

• shallow grooves in the brain tissue because of the gyri

Fissures

- deeper grooves that separate larger regions of the brain

Longitudinal fissure

separates right and left hemispheres

Transverse cerebral fissure

separates hemispheres from cerebellum

5 lobes of the brain

are part of the cerebral cortex, or the conscious part of our minds

frontal lobe

behavior control, problem thinking, planning

parietal lobe

sensory integration, understand where things are around you

occipital lobe

visual processing area of the brain. race recognition, memory formation

temporal lobe

hearing, understand language, speech

insula

involved in self awareness

corpus collusum

connects the 2 hemispheres for communication

thalamus

send message to right section of the brain

pituitary gland

controls glands, growth development

epithalamus

regulates sleep cycle using melatonin(wake up), houses the pineal gland

hypothalamus

help maintain homeostasis(temp, water,hunger), houses the pituitary gland

cerebellum

responsible for coordination, balance, and posture

brain barrier

helps maintain the brains stable environment

• the barrier is selective for the good stuff and keeps out the bad toxins

• ineffective against alcohol, nicotine, and anesthetics.

Midbrain

involved in motor movement(especially eye tracking) and turning the head in response to sound.

pons

• helps to forward information from cerebrum to the cerebellum

• controls breathing rate

medulla oblongata(automatic reflexes)

regulates breathing, heartbeat, and blood pressure, also regulates and control vomiting, coughing, sneezing, swallowing