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Flashcards in Comp Exam Deck (50):
1

What does the lateral fissure separate?

temporal lobe from frontal and parietal lobe

2

What does longitudinal fissure separate?

into two hemisphere

3

What does the central sulcus separate?

the frontal lobe from the parietal lobe

4

What are the lobes?

frontal
parietal
temporal
occipital
insular
limbic

5

Parts of the frontal lobe:

precentral gyrus
prefrontal cortex
Broca's area

6

Precentral gyrus:

primary motor cortex for voluntary muscle activation

7

Prefrontal cortex:

controls emotions and judgments

8

Broca's area:

controls motor aspects of speech

9

Parts of parietal lobe:

postcentral gyrus
receives fibers conveying touch, proprioception, pain and temp. sensations from opposite side of body

10

Postcentral gyrus:

primary sensory cortex for integration of sensation

11

Parts of temporal lobe:

primary auditory cortex
associative auditory cortex
Wenicke's area

12

Primary auditory cortex:

receives/processes auditory stimuli

13

Associative auditory cortex:

processes auditory stimuli

14

Wernicke's area:

language comprehension

15

Parts of occipital lobe:

primary visual cortex
visual association cortex

16

Primary visual cortex:

receives/processes visual stimuli

17

Visual association cortex:

processes visual stimuli

18

What is the insula associated with and where is it locakted?

visceral functions
located in lateral sulcus

19

What is the limbic system concerned with?

instincts and emotions contributing to preservation of individual

20

Basic functions the limbic system is concerned with?

feeding, aggression, emotions and endocrine aspects of sexual response.

21

Where is white matter located?

myelinated nerve fibers located centrally

22

Transverse (commussural fibers)

interconnect 2 hemisphere

23

Projection fibers

connect cerebral hemispheres w/other portions of brain and spinal cord

24

Association fibers:

connect different portions of cerebral hemispheres, allowing cortex to function as an integrated whole

25

What is included in the basal ganglia?

striatum
globus pallidus
subthalamic nucleus and substantia nigra

26

Anterior horn:

efferent (motor) neurons

27

Posterior horn:

afferent (sensory) neurons

28

Dorsal column (DCML)

convey proprioception, vibration, and tactile discriminatino

29

Spinothalamic tract:

sensations of pain and temperature (lateral spinothalamic)
and crude touch (anterior spinothalamic)

30

Spinocerebellar tract:

proprioception from muscle spindles, Golgi tendon organs and touch and pressure receptors for control of voluntary movement

31

Spinoreticular tracts;

deep and chronic pain to reticular formation

32

Ascending tracts:

DCML
Spinothalamic
Spinocerebellar
Spinoreticular

33

Descending tracts:

corticospinal tracts
vestibulospinal tracts
rubrospinal tracts
reticulospinal tract
tectospinal tract

34

Corticospinal tract:

arise from primary motor corect

35

Vestibulospinal tract:

arise from vestibular nucleus
control of muscle tone, antigravity muscles and postural reflexes

36

Rubrospinal tract:

assist in motor function

37

Reticulospinal system:

modifies transmission of sensationm especially pain

38

Tectospinal tract:

assists in head turning and responses to visual stimuli

39

Autonomic nervous system:

involuntary structures:
smooth muscle, heart, glands
maintains homeostatsis

40

Divisions of ANS:

sympathetic
parasympathetic

41

Sympathetic:

fight or flight
arises T1-L2

42

Parasympathetic:

craniosacral, CN III, VII, IX, X, pelvic nerves
rest and digest

43

Autonomic plexuses:

cardiac, pulmonary, celiac, hypogastric, pelvic

44

Circle of Willis:

anterior communicating artery
two anterior cerebral arteries
posterior communicating artery
connecting each posterior and middle cerebral artery

45

Alpha nerve fibers:

proprioception, somatic motor

46

Beta nerve fibers:

touch, pressure

47

Gamma nerve fibers:

motor to muscle spindles

48

Delta nerve fibers:

pain, temperature, touch

49

B fibers:

small, myelinated, conduct less rapidly

50

C fibers:

smallest, unmyelinated, slowest conducting