ch 5 the brain Flashcards
the basic structure
hindbrain (cerebellum and medulla)
midbrain (reticular formation)
forebrain (hypothalamus, thalamus and cerebrum)
the hindbrain
- the lower brain
- supports bodily functions and is the link between the spinal cord and brain
- includes the brainstem, medulla, pons, cerebellum, and reticular formation
the medulla
continuation of the spine
controls breathing, heartbeat and digestion
the pons
- above the medulla, recieves info sent from visual areas to control eye and body actions
the cerenbellum
- receives information from the pons
- coordinates the sequence of body movements
the midbrain
- sits above the hindbrain
- resonsible for sleep, moto movemnt and arousal
the forebrain
includes the cerebrum, the hypothalamus and the thalamus
cerebrum
- biggest most recognised part
- covered by a thin layer known as the cerebral cortex
- divided into the left hemispheres which are separated by the longitudinal fissure
- two hemispheres joined by the corpus callosum
the hypothalamus
controls basic survival actions:sleep regulation of body temp, expression of emotions and the four F (feeding, fighting, fleeing and fornications)
the thalamus
- located beneath the cerebral cortex
- two eggs shaped parts that sit side by side for each hemisphere
- is the communication centre of the brain, receives info from the ears, eyes, skin and other sensory organs
the thalamus
- enables the organism to process sensory stimuli in the environment. receives info and relays it to the relevant part of the cortex
- determines which of the incoming information is the most important for us to pay attention too
the cerebral cortex
is the outside later of the forebrain
- receives information from the environment
- controls our responses
- for higher order thinking: problem solving, planning
- involved in memory, language and emotional regulation
brocas area
- responsible for speech production
- part of the frontal lobes playing a key role in producing clear speech
damage can disrupt speaking - broken words
- called brocas aphasia
wenickes area
responsible for language reception and interpretation, and for the creation of grammatically correct speech
part of the temporal lobe responsible for comprehension of speech
damage impairs the intrepation of language
person is unaware of their language
called wernickes aphasia
Gechwinds territory
area improtant to languge
part of the parietal lobe
is the area of the brain that provides a connection between bronca area and wenickes area
it is a bundle of nerve fibres
helps to combine sounds into coherent hrases and sentences