bran
Terms
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- long protective area of shull temporal, frontal parietal spheroid occipital.
- cranium
- membranes dura mater, pia mater and middle arechriad - axtensions of membranes around the spinal cord.
- meninges
- the spinal cord
- cerebrospinal fluid
- colorless liquid which cntains glucose, proteins, cations, ani9ons, and lymphionctes.
- cerebrospinal fluid
- what is the functions of cerebrospinal fluid?
- protection and other unctins.
- what are the who example of protection?
- mechanical protection and chemical protection.
- shock adsorgel
- mechanical protection
- acts as barrier betweeen blood and brain
- chemical protection
- what are the other function of cerebrospinal fluid?
- acts as a go b/n the blood and brain.
- are cavities called bentricles are within the brain?
- yes.
- wthow chambers deep in each hemisphere of the cerebrum. they open directly into the third ventricle through the foramen of monro. ( interventricular foramen.)
- lateral ventricles.
- single vertical slit b/n the halves of lthe thalamus . it is connected by the cerebral awueduct (awueduct of sylius to the fourth ventricle.
- third ventricle.
- single cavity between the cerevellum and the brain lstem. connected to the suvarachnoid space by the median aperutre of magandie and the two laterial apertures of luschka.
- fourht ventricle.
- is formed in the lateral and third ventriles
- flow of csf
- is csf reabosrbed by the arachnoid villistructur beneat te meninge?
- yes.
- siries of blood vessels at lase of the brain.
- circle of willes (cerebral arterial circle)
- oxygen levels: 2o% of the total used by the whole body is used by the ______.
- brain.
- __:- glucse + oxgen_____>glycolysis _____>krebis cycle____>36ATP + H2O.
- glucose needs
-
BRAIN STEM
A. medulla oblogate
1. structure= - upper portin of the spinal cord.
- under 1. a. structure
- contains ascending + descending tracts(white material).
- under 1. b. pairof lulges on bertrial surgace where motor tracts will class over from l to rt on their way to the cereblum.
- pyramids.
- under 1. c. control heart rate and the force of heart beat.
- cardiovascular center.
- under 1. d. controls rhythym of treathing
- contains the respiratory center.
- function of medulla oblogata
- consciousness, arousal from sleep, swallowing, coughing, vomiting, s3neezing, and hiccuping also arigin of cranial neres viii-xii.
- structure of pons.
- area above the medulla ablongata which acs to cnnect the higher brain center with the spinal cord.
- functin of pons
- relays impulses to skeletal muscle
- egxample for functi8on of pons-
- pneumotaxic area, apneustic areas, and contain teh middele cerevellar peduncles.
- on teh lateral surface of pins and connected to the cerevellum.
- contain the middle cerebvellar peducles.
- the use of pneumotaxic area and appeustic areas are
- help the control respiration. page 869 and in page 2325.
- strature aboe the pions and integrates the cerebrum and cerebellum
- midbrain
-
diencephalon
a. thalamus
1. structure of thalamus - above the idbrain and frms the lateral walls of trhe third ventricle.
- 2. function of the thalamus
- raly statin, rgister pain, temp. light, touch and pressur.