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Flashcards in 0 Introduction Deck (48):
1

proencephalon

forebrain

2

mesencephalon

midbrain

3

rhombencephalon

hindbrain

4

telencephalon

tele- end
cerebral cortex structures

5

diencephalon

thalamus, hypothalamus, associated structures

6

hindbrain

pons, cerebellum

7

mentencephalon

cerebellum

8

myelencephalon

medulla

9

fascicle

a bundle of nerve fibers, roughly the same as a tract

10

lemniscus

a type of bundle
secondary sensory nerve fibers that terminate in the brainstem

11

bundle

a collection of nerve fibers

12

commissure

nerve fibers that cross the midline at their level of entry

13

thoracolumbar division

sympathetic nervous system

14

craniosacral division

parasympathetic nervous system

15

rhinal sulcus

sepateas the fusiform gyri from the parahippocampal gyrus

16

tonotropic representation

the frequency of sound is encoded based on how it makes different parts of the cochlear membrane vibrate

17

Layer I

molecular layer
dendrites and axons from other layers

18

Layer II

small pyramidal layer
cortical-cortical connection

19

Layer III

medium pyramidal layer
cortical-cortical connections

20

Lyer IV

granular layer
receives inputs from the thalamus

21

Layer V

large pyramidal layer
sends outputs to subcortical regions

22

Layer VI

polymorphic layer
sends outputs to the thalamus

23

corticospinal tract

aka pyramidal tract
the primary motor tract
decussates at medulla's pyramidal decussation

24

upper motor neurons

motor neurons that project from the cortex down to the pyramid or spinal chord

25

lower motor neurons

anterior horns of grey matter

26

ataxia

loss of balance

27

Parkinson's

infrequent, slow, rigid movements

28

Huntington's

hyperkinetic movement disorder

29

posterior (dorsal) column pathways

convey proprioception, vibration, pressure, fine discriminative touch

30

anterolateral pathways

convey pain, temperature, and brush

31

monosynaptic stretch reflex

signals from type Ia muscle sensory fibers synapse directly onto lower motor neurons (LMNs)

32

reticular formation

controls levels of consciousness

33

unimodal association cortex

higher order processing takes place mostly for a single sensory modality

34

hetermodal association cortex

involves integration functions of multiple modalities

35

Wernicke's Area

understanding written and spoken language

36

Broca' area

frontal lobe, speech production

37

Broca's aphasia

a failure to comprehend and convey language

38

agnosia

inability to recognize objects

occipital temporal border injury

39

apraxia

inability to execute learned, purposeful movements

40

anosognosia

when a patient is unaware of disease

noso-disease

41

abulic

not ebullient

42

magnetic gait

feet seem attached to the floor

43

prosopagnosia

inability to recognize faces
prosopon- face
agnosia- not knowing

44

achromatopsia

decreased color vision

45

palinopsia

palin- against
opsia- seeing
images persist, sometimes after the stimulus has left

46

internal carotid artery

supplies the middle and anterior cerebral arteries

47

vertebral arteries

fuse to form the vertebral artery which supplies the posterior cerebral artery

48

basilar artery

gives rise to the pontine arteries and posterior cerebral arteries