Lecture 11

Question 1

Dura Mater

Answer 1

Strong, White fibrous connective tissue

continuous with the interior periosteum of the skull

Question 2

falx cerebri

Answer 2

falx cerebri- separates the hemispheres of the cerebrum

Question 3

Falx cerebelli

Answer 3

separates the two hemispheres of the cerebellum

Question 4

tentorium cerebelli

Answer 4

separated the cerebellum from the cerebrum

Question 5

pia mater

Answer 5

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

Question 6

CSF

Answer 6

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

Question 7

Medulla Oblongata

Answer 7

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)

Question 8

Pons

Answer 8

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

Question 9

Mesencephalon

Answer 9

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

Question 10

Cerebellum

Answer 10

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.

Question 11

Diencephalon

Answer 11

Thalamus, hypothalamus,pineal body

Question 12

Thalamus

Answer 12

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

Question 13

Hypothalamus

Answer 13

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)

Question 14

Pineal Body

Answer 14

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

Question 15

Optic chiasma

Answer 15

point where the optic nerve cross near the pituitary gland

Question 16

Corpus Callosum

Answer 16

connects himispheres of cerebral cortex. (Cerebral plasticity)

Question 17

Cerebral cortex

Answer 17

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