Anatomy Lab 4 The Brain

Front 1

Gyrus

Back 1

rounded convolution

Front 2

Sulcus

Back 2

shallow groove

Front 3

Fissure

Back 3

deeper groove

Front 4

Longitudinal fissure

Back 4

divides right & left hemispheres

Front 5

Lateral sulcus

Back 5

separates temporal lobe from the frontal & parietal lobes

Front 6

Lateral ventricles are cavities deep within each ____ ___ containing ___ ___

Back 6

Cavities deep within each cerebral hemispheres containing cerebrospinal fluid

Front 7

Central sulcus

Back 7

separates frontal & parietal lobes

Front 8

Motor cortex lies in ___ gyrus of ___ lobe

Back 8

lies in precentral gyrus of frontal lobe

Front 9

Frontal eye fields location

Back 9

located in frontal lobe

Front 10

Sensory cortex located in what lobe

Back 10

located in parietal lobe

Front 11

Frontal eye fields function is the center for ___ ___ ___

Back 11

the center for voluntary eye movements

Front 12

Auditory cortex located in ___ lobe

Back 12

located in temporal lobe

Front 13

Parieto-occipital sulcus

Back 13

separates parietal from occipital

Front 14

Striate (Visual) cortex location

Back 14

lies on medial aspect of occipital lobe

Front 15

Striate (Visual) cortex surrounds

Back 15

surrounding calarine fissure

Front 16

Calarine fissure ___ ___ of ___ ___ to ___-___sulcus

Back 16

posterior pole of occipital lobe to parieto-occipital sulcus

Front 17

Calarine fissure divides

Back 17

and divides striate cortex into 2 parts

Front 18

Striate cortex two parts

Back 18

Cuneus gyrus – upper section; Lingual gyrus – lower section

Front 19

Striate cortex upper section

Back 19

Cuneus gyrus

Front 20

Striate cortex lower section

Back 20

Lingual gyrus

Front 21

Striate cortex bordering

Back 21

the psycho visual cortex area

Front 22

psycho visual cortex area is where ____ of ___ data into the ___ that we call ___ occurs

Back 22

where integration of visual data into the perception that we call sight occurs

Front 23

Corpus callosum

Back 23

wide band of transverse fibers connecting hemispheres

Front 24

Septum pellucidum

Back 24

partition separating anterior portions of lateral ventricles

Front 25

Anterior commissure

Back 25

bundle of fibers connecting the two hemispheres

Front 26

Lamina terminalis

Back 26

thin anterior wall of third ventricle

Front 27

fibrous band connecting two hemispheres (lies inferior to corpus callosum)

Back 27

Fornix

Front 28

Posterior commissure composition

Back 28

bundle of fibers connecting hemispheres

Front 29

Posterior commissure part of

Back 29

part of pupillary light pathway

Front 30

Pineal body

Back 30

neuroendocrine gland

Front 31

Thalamus structure, connects

Back 31

large ovoid nuclear mass, 2 nuclei connected across third ventricle.

Front 32

Thalamus forms

Back 32

forming part of lateral wall of third ventricle

Front 33

2 thalamic nuclei are connected across the third ventricle by?
significance of adhesion?

Back 33

1.the inter-thalamic adhesion (mass intermedia)
2. no functional significance known fo this connection

Front 34

all 1.___ impulses w/ the exception of 2.____ impulses are received by the thalamus

Back 34

1. sensory
2. olfactory

Front 35

thalamus role

Back 35

major role in processing and relaying information

Front 36

Hypothalamus location

Back 36

Tissue inferior to thalamus

Front 37

Hypothalamus forms what in regard to the 3rd ventricle?

Back 37

forms the floor and the ventral half of the lateral walls of the 3rd ventricle.

Front 38

Hypothalamus is important in control of what type of activities?

Back 38

visceral activities

Front 39

Hypothalamus important in maintenance of what visceral activities? (5)

Back 39

1. water balance
2. sugar metabolism
3. fat metabolism
4. regulation of body temp
5. regulation of secretions of endocrine glands (all visceral activities)

Front 40

Hypothalamus is chief

Back 40

subcortical region for the integration of sympathetic and parasympathetic activities

Front 41

Third ventricle cavity filled with ___

Back 41

cavity filled with CSF

Front 42

Third ventricle surrounded by what?

Back 42

surrounded in part by hypothalamus

Front 43

Third ventricle is connected to each of the lateral ventricles by what?

Back 43

interventricular foramen

Front 44

Interventricular foramen

Back 44

connects 3rd ventricle to each of lateral ventricles.

Front 45

Cerebral aqueduct

Back 45

connects 4th ventricle to 3rd ventricle

Front 46

Choroidal plexus function? location?

Back 46

vascular membrane that produces CSF
located in each ventricles

Front 47

Midbrain connections

Back 47

connects the pons and cerebellum with cerebral hemispheres

Front 48

Dorsal surface of midbrain known as what?

Back 48

tectum

Front 49

Tectum (located on the dorsal surface of midbrain) is?

Back 49

subdivided into paired rounded elevations
1. superior collicui
2. inferior colliculi

Front 50

Corpora quadrigemina

Back 50

all four colliculi collectively

Front 51

Medulla(oblongata) & Pons are transversed by ___ ___ that interconnect these and other parts of ___

Back 51

Traversed by fiber tracts that interconnect these an other parts of CNS

Front 52

Medulla(oblongata) & Pons Contain collections of ___ cells that form ___ of several ___ ___

Back 52

Contain collections of nerve cells that form nuclei of several cranial nerves

Front 53

Pons inferiorly it is continuous w/ what?

Back 53

Inferiorly, pons is continous with medulla

Front 54

inferiority the pons is continuous with the medulla but does what from it by a ___ furrow

Back 54

demarcated from it in front and on each side by a transverse furrow.

Front 55

The pons is connected to what? by what?

Back 55

connected to the cerebellum by middle cerebellar peduncles

Front 56

The pons contains fibers connecting what with what?

Back 56

and contains fiber tracts connecting medulla and cerebellum with the upper portions of the brain.

Front 57

Cerebellum location in regard to pons and medulla

Back 57

posterior to pons & medulla

Front 58

Cerebellum's ventral-medial portion separated by?

Back 58

Medial portion separated by cavity of 4th ventricle

Front 59

Cerebellum involved in?

Back 59

Synergic control of skeletal muscles

Front 60

Cerebellum plays an important role in what?

Back 60

important role in coordination of voluntary muscular mvts

Front 61

Fourth ventricle shape

Back 61

tent shaped

Front 62

Fourth ventricle location

Back 62

ventral to cerebellum and dorsal to pons and cranial half of medulla

Front 63

Fourth ventricle inferior limit is continuous w/ ___ ___ of ____ and ___ ___

Back 63

Inferior limit is continuous with central canal of medulla and spinal cord

Front 64

Cerebral aqueduct is continuous w/

Back 64

continuous (cranially) with 4th ventricle which connects to 3rd ventricle.

Front 65

cerebellum cranially is continuous with what?

Back 65

Cerebral aqueduct

Front 66

Pituitary gland is a ____ gland suspended from ___ of ___ by the ____

Back 66

neuroendocrine gland suspended from floor of hypothalamus by the infundibulum

Front 67

Infundibulum

Back 67

stalk of pituitary

Front 68

Optic chiasm juncture in regard to optic nerves

Back 68

juncture where the two optic nerves meet

Front 69

Optic chiasm attached at the floor of what?

Back 69

Attached to floor of hypothalamus

Front 70

Optic chiasm
all fibers from what? pass though what? what fibers cross?

Back 70

all fibers from retinas pass through chiasm where nasal fibers cross over

Front 71

Cerebral peduncles location

Back 71

ventral surface of midbrain

Front 72

Pons is connected to the cereebellum by what?

Back 72

middle cerebellar peduncles

Front 73

Interpeduncular fossa what is it?

Back 73

the space that lies between cerebral peduncles

Front 74

rostral boundary of interpeduncular fossa formed by posterior surface

Back 74

Mamillary bodies

Front 75

Optic tract fibers leave what? then wrap around what?

Back 75

fibers leaving chiasm wrap around cerebral peduncles

Front 76

Optic tract fibers termination

Back 76

terminate in lateral geniculate nucleus (LGN).

Front 77

LGN structure is a small ___ complex that projects from the ___ aspect of the ___ region of the ___ ___

Back 77

small nuclear complex that projects from inferior aspect of posterior region of lateral thalamus.

Front 78

LGN termination of what? and origin of what?

Back 78

Termination of retinal axons
origin of optic radiations.

Front 79

Pyramid location?

Back 79

ventral surface of medulla

Front 80

Pyramid lateral to?

Back 80

just lateral to central anterior groove on medulla

Front 81

Olive is a prominence lateral to what?

Back 81

prominence lateral to pyramid

Front 82

Basal ganglia is a region of ___ matter w/i ___ matter of the ___ ___

Back 82

region of gray matter within white matter of cerebral hemisphere

Front 83

Basal ganglia made of what 3 structures? they are lateral to what?

Back 83

Caudate
Putamen
Globus pallidus
lateral to the thalamus

Front 84

Olfactory tracts ( CN I) location

Back 84

inferior to frontal lobes

Front 85

Optic nerves (CN II) join

Back 85

join at optic chiasm

Front 86

Oculomotor nerve (CN III) exits where, through what?

Back 86

exits from the midbrain through interpeduncular fossa

Front 87

Trochlear nerve (CN IV) exits THE ___ aspect of the ___ and runs ____ along the ___ surface of the ____

Back 87

exits the dorsal aspect of the midbrain and runs anteriorly along lateral surface of peduncles.

Front 88

Trigeminal nerve (CN V) exits

Back 88

exits pons on its lateral side.

Front 89

Abducens (CN VI) appears w/i groove b/t what structures

Back 89

groove between pons and medulla

Front 90

Facial (CN VII) appears w/i the groove b/t?

Back 90

groove between pons and medulla

Front 91

Vestibulocochlear nerves (CN VIII) appears w/i groove b/t what?

Back 91

groove between pons and medulla

Front 92

Hypoglossal nerve (CN XII) located on ___ b/t ___ and ___

Back 92

located on medulla between pyramid and olive

Front 93

Glossophayrngeal (CN IX) & Vagus (CN X) posterior to what?

Back 93

posterior to olive

Front 94

Spinal accessory nerve (CN XI) location

Back 94

inferior to vagus

Front 95

CN I
Name
Nucleus Location
Foramen

Back 95

Olfactory tracts
Olfactory bulb
Olfactory foramia

Front 96

CN II
Name
Nucleus Location
Foramen

Back 96

Optic nerve
LGN
Optic canal

Front 97

CN III
Name
Nucleus Location
Foramen

Back 97

Occulomotor nerve
Midbrain
Superior Orbital fissure

Front 98

CN IV
Name
Nucleus Location
Foramen

Back 98

Trochlear Nerve
Midbrain
Superior Orbital fissure

Front 99

CN V
Name

Back 99

Trigeminal Nerve

Front 100

CN V-opthalmic
Name
Nucleus Location
Foramen

Back 100

Trigeminal Nerve
Midbrain
Superior Orbital fissure

Front 101

CN V-maxillary
Name
Nucleus Location
Foramen

Back 101

Trigeminal Nerve
Pons
Foramen Rotundum

Front 102

CN V-mandibular
Name
Nucleus Location
Foramen

Back 102

Trigeminal Nerve
Medulla
Foramen Ovale

Front 103

CN VI
Name
Nucleus Location
Foramen

Back 103

Abducens Nerve
Pons
Superior Orbital fissure

Front 104

CN VII
Name
Nucleus Location
Foramen

Back 104

Facial Nerve
Pons
Stylomastoid foramen

Front 105

CN VIII
Name
Nucleus Location
Foramen

Back 105

Vestibulocochlear
Pons
Internal acoustic foramen

Front 106

CN IX
Name
Nucleus Location
Foramen

Back 106

Glossophayrngeal
Pons & Medulla
Jugular foramen

Front 107

CN X
Name
Nucleus Location
Foramen

Back 107

Vagus Nerve
Pons & Medulla
Jugular foramen

Front 108

CN XI
Name
Nucleus Location
Foramen

Back 108

Spinal Accessory
Medulla, Spinal Cord
Jugular foramen

Front 109

CN XII
Name
Nucleus Location
Foramen

Back 109

Hypoglossal
Pons & Medulla
Hypoglossal canal

Front 110

this is a small nuclear complex distinguishable as a small projection from the inferior aspect of the posterior region of the lateral thalamus

Back 110

LGN

Front 111

external geniculate body

Back 111

LGN

Front 112

the termination of the retinal axons and the origin of the optic ratdiations

Back 112

LGN