Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neurosensory > *6.1 Systems in the NS, Sensory I - VISUAL SYSTEM and upper cranial nerves (HARC) > Flashcards

*6.1 Systems in the NS, Sensory I - VISUAL SYSTEM and upper cranial nerves (HARC) Flashcards

1
Q

OPTIC NERVE RECEIVES SENSORY INFORMATION from the EYE and takes it TO the…

A

OPTIC CHIASMA

-> OPTIC TRACT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

from the Optic Chiasma the OPTIC TRACT will take the Information TO … and where will it go from there

OPTIC TRACT ->

A

to LATERAL GENICULATE BODY (THALAMUS)

-> OPTIC RADIATION

and then to the OCCIPITAL LOBE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what FEILDS of VIEW are RECEIVED at the EYES

A

TEMPORO VISUAL FIELD - LATERAL

NASAL VISUAL FIELD - MIDDLE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

at the OPTIC CHIASMA the information either DECUSSATES (crosses over and forms X shape) or some stays IPSILATERAL (on the same side)

which FIELDS of VIEW INFORMATION DECUSSATE and which stay IPSILATERAL

A

DECUSSATES : LATERAL, TEMPORO VISUAL FIELD

IPSILATERAL: MIDDLE, NASAL VISUAL FIELD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where does OCCULOMOTOR NERVE ORIGINATE

A

VENTRAL MIDBRAIN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

OCCULOMOTOR NERVE is at the LEVEL of the …. (anatomical landmark)

A

SUPERIOR COLLICULUS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The SUPERIOR BRANCH of the OCCULOMOTOR SUPPLIES which MUSCLES

A

SUPERIOR RECTUS & LEVATOR PALPEBRAE SUPERIOSIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

INFERIOR BRANCH of the OCCULMOTOR SUPPLIES which MUSCLES

A

INFERIOR RECTUS, MEDIAL RECTUS, INFERIOR OBLIQUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

OCCULOMOTOR SUPERIOR and INFERIOR BRANCHES supply how many MUSCLES each

A

Superior : 2

Inferior: 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

TROCHLEAR NERVE (4) is at the LEVEL of the …

A

INFERIOR COLLICULUS (in LOWER MIDBRAIN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

TROCHLEAR NERVE EXITS which way (ventral or dorsal)

A

DORSALLY - POSTERIOR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

TROCHLEAR NERVE INNERVATES which MUSCLE (MOTOR)

A

SUPERIOR OBLIQUE
(depression of eye)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

where is the ABDUCENS NERVE (6) LOCATED

A

at INFERIOR portion of the PONS

at PONTOMEDULLARY JUNCTION

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

ABDUCENS NERVE has only SOMATIC MOTOR Neurons to INNERVATE which MUSCLE

A

LATERAL RECTUS MUSCLE
(abduction)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

LAVATOR PALPEBRAE SUPERIORIS (elevate eyelid) is INNERVATED by which NERVE

A

OCCULOMOTOR
- SUPERIOR BRANCH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

SUPERIOR OBLIQUE (depress eyeball, medial rotation, abduction) is INNERVATED by which NERVE

A

TROCHLEAR NERVE

(its Fibres pass the TROCHLEAR)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

INTERNAL OBLIQUE (elevate eyeball, lateral rotation, abduction) is INNERVATED by which NERVE

A

OCCULOMOTOR (3)
- INFERIOR BRANCH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is at the LEVEL of the SUPERIOR COLLICULUS

A

OCCULOMOTOR NERVE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is at the LEVEL of the INFERIOR COLLICULUS

A

TROCHLEAR NERVE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is at the PONTOMEDULLARY JUNCTION

A

ABDUCENS NERVE

(& Vestibulocochlear
& Facial)

21
Q

MEDIAL RECTUS (adduction) is INNERVATED by which NERVE

A

OCCULOMOTOR
- INFERIOR BRANCH

22
Q

LATERAL RECTUS (abduction) is INNERVATED by which NERVE

A

ABDUCENS

23
Q

INFERIOR RECTUS (depress eye) is INNERVATED by which NERVE

A

OCCULOMOTOR
- INFERIOR BRANCH

24
Q

which NERVE EXITS DORSALLY

A

TROCHLEAR NERVE

25
Q

which NERVE has ONLY SOMATIC MOTOR NEURONS (VOLUNTARY movement)

A

ABDUCENS

26
Q

which MUSCLES FIBRES PASS the TROCHLEAR

A

SUPERIOR OBLIQUE (from trochlear nerve)

27
Q

which MUSCLE appears the HIGHEST / most superior

A

SUPERIOR OLIQUE

then Lavator Palpebrae Superiosis
then Superior Rectus below

28
Q

the 4 RECTI MUSCLES ORIGINATE from …. RING

A

COMMON TENDONOUS RING

29
Q

FUNCTIONS of the SUPERIOR RECTUS muscle (innervated by OCCULOMOTOR)

A

ELEVATES EYES (look up)

MEDIAL ROTATION/INTORSION

ADDUCTION (pulls towards midline)

30
Q

FUNCTIONS of the INFERIOR RECTUS muscle (innervated by OCCULOMOTOR)

A

DEPRESSES EYES (look down)

LATERAL ROTATION / INTORSION

ADDUCTION

31
Q

FUNCTIONS of the MEDIAL RECTUS muscle (innervated by OCCULOMOTOR)

A

ADDUCTION

32
Q

FUNCTIONS of the LATERAL RECTUS muscle (innervated by ABDUCENS)

A

ABDUCTION

33
Q

FUNCTIONS of the SUPERIOR OBLIQUE muscle (innervated by TROCHLEAR)

A

DEPRESSION

ABDUCTION

MEDIAL ROTATION/INTORSION

34
Q

FUNCTIONS of the INFERIOR OBLIQUE muscle (innervated by OCCULOMOTOR)

A

ELEVATE

ABDUCTION

LATERAL ROTATION/EXTORSION

35
Q

which EYE MUSCLES cause ADDUCTION

A

MEDIAL RECTUS

SUPERIOR RECTUS

INFERIOR RECTUS

36
Q

which EYE MUSCLES cause ABDUCTION

A

LATERAL RECTUS

SUPERIOR OBLIQUE

INFERIOR OBLIQUE

37
Q

which MUSCLE ELEVATES the EYELID (not eye)

A

LEVATOR PALPEBRAE SUPERIOSIS

(from superior branch of Occulomotor)

38
Q

which EYE MUSCLES cause ELEVATION of EYES - LOOK UP

A

SUPERIOR RECTUS

INFERIOR OBLQUE

39
Q

which EYE MUSCLES cause DEPRESSION of EYES - LOOK DOWN

A

INFERIOR RECTUS

SUPERIOR OBLIQUE

40
Q

which EYE MUSCLES cause MEDIAL ROTATION / INTORSION

A

SUPERIOR RECTUS

SUPERIOR OBLIQUE

(NOT medial rectus)

41
Q

which EYE MUSCLES cause LATERAL ROTATION / EXTORSION

A

INFERIOR RECTUS

INFERIOR OBLIQUE

(NOT lateral rectus)

42
Q

COMMON ACTION between the SUPERIOR and INFERIOR OBLIQUES

A

ABDUCTION

43
Q

COMMON ACTION between the SUPERIOR and INFERIOR RECTUS

A

ADDUCTION

44
Q

what ROTATION does SUPERIOR OBLIQUE cause

A

MEDIAL ROTATION / INTORSION

(&abduct)

45
Q

what ROTATION does INFERIOR OBLIQUE cause

A

LATERAL ROTATION / EXTORSION

(&abduct)

46
Q

what ROTATION does SUPERIOR RECTUS cause

A

MEDIAL ROTATION / INTORSION

(&adduct)

47
Q

what ROTATION does INFERIOR RECTUS cause

A

LATERAL ROTATION / EXTORSION

48
Q

where in the BRAIN are the PRIMARY & SECONDARY VISUAL CORTEX where the sensory information from the optic nerve (optic chiasm, optic tract, optic radiation) is carried to FROM THE EYE

A

OCCIPITAL LOBE

Neurosensory (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions