Lecture 11 Flashcards Preview

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Flashcards in Lecture 11 Deck (17):
1

Dura Mater

Strong, White fibrous connective tissue
continuous with the interior periosteum of the skull

2

falx cerebri

falx cerebri- separates the hemispheres of the cerebrum

3

Falx cerebelli

separates the two hemispheres of the cerebellum

4

tentorium cerebelli

separated the cerebellum from the cerebrum

5

pia mater

soft,moist, thin membrane. in direct contact with the external layer of the brain and spinal cord

6

CSF

Cerebral spinal fluid is found in the subarachnoid space. protective cushion. circulates and monitors for changes in homeostasis

7

Medulla Oblongata

extension of the spinal cord. (braintstem)
basic control over cardiac, respiratory and vasomotor functions (Blood pressure, vessel diameter) basic reflex actiongs (vomiting, coughing, sneezing and hiccuping)

8

Pons

bump just above the medulla formed by white fibers. Helps regulate respiration. focal point for several cranial nerves.

9

Mesencephalon

(Midbrain.) Cerebral peduncles (ropelike masses of white matter)
quadrigeminal bodies (superior set- visual center [pupilary response] and Inferior set-auditory center)

10

Cerebellum

separated from cerebrum by transverse fissure. mostly gray matter externally. white fibers internally form Arbor Vitae. Contains more neurons than rest of nervous system combines
"executive assistan" for cerebrum. coordinates muscle group activity. Controls posture, balance and grace. Coordinates incoming sensory information.

11

Diencephalon

Thalamus, hypothalamus,pineal body

12

Thalamus

dumbell shapes mass of gray matter. controls conscious recognition of basic sensations (pain, temperature, crude touch)
associates sensations with basic pleasure or displeasure
plays a role in alertness
controls complex reflexes

13

Hypothalamus

located on the anterior, inferior front of the thalamus
Links the nervous system to the endocrine system
coordinates the ans
regulates body temperature
regulate primary drives
(feeding, fleeting, fighting and sex.) (sleep, hunger, third, sex)

14

Pineal Body

produces melatonin. controls the circadian rhythm (biological clock). synchronizes body functions with outside stimuli.

15

Optic chiasma

point where the optic nerve cross near the pituitary gland

16

Corpus Callosum

connects himispheres of cerebral cortex. (Cerebral plasticity)

17

Cerebral cortex

largest division of the brain. layer of gray matter over white matter. Has Gyri and Sulci. lobed.
voluntary motor functioning. interpretation and evaluation of sensory info (five senses esp.)
consciousness-controlled by the RAS.
Language
higher level emotions
memory