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Anatomy 2 Final > Reflexes > Flashcards

Reflexes Flashcards

Learn Reflexes

1
Q

What does the Panniculus Reflex Test?

A

Integrity of receptors, lateral thoracic nerve, and spinal cord

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2
Q

Another name for Panniculus Reflex Test?

A

Cutaneous Trunci Reflex

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3
Q

Afferents of Panniculus

A

Superficial pain receptors

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4
Q

Efferents run with?

A

Lateral thoracic nerve from segments C*/T1

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5
Q

What do the efferents of the Panniculus cause?

A

Contraction of trunk m. bilaterally

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6
Q

PLR–Afferent & efferent?

A

A: CN II (Optic) E: CN III (Occulomotor)

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7
Q

Corneal Reflex–Afferent & efferent?

A

A: Ophthalmic Branch of V (Trigeminal) E: CN VI (Abducens)

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8
Q

Palpebral Reflex–Afferent & efferent?

A

A: Maxillary Branch of V (Trigeminal) E: CN VII (Facial)

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9
Q

What reflex is seen only in an abnormal animal during a recumbent neuro exam?

A

Crossed-Extensor Reflex

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10
Q

Menace Response–Afferent & efferent?

A

A: CN II (Optic) E: CN VII (Facial)

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11
Q

Panniculus/Cutaneous Trunci Reflex tests for damage where?

A

Between T2-L4

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12
Q

Is Withdrawal Reflex seen in normal animals?

A

Yes

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13
Q

What is the Withdrawal Reflex?

A

Withdrawal of limb being stimulated

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14
Q

When in the Withdrawal Reflex altered?

A

Damage to spinal cord, spinal root, peripheral nerve or muscle

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15
Q

Withdrawal Reflex Afferents

A

Propriceptors (also some nociceptors & thermoreceptors)

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16
Q

Is the crossed-extensor reflex normal in a standing animal?

A

Yes

17
Q

Is the crossed-extensor reflex normal in a recumbent animal?

A

No

18
Q

What injury is associated with the crossed-extensor reflex?

A

Spinal cord damage cranial to the limb that shows the reflex.

19
Q

Perineal Reflex tests what?

A

Integrity of segments S1-S3 and pudendal n.

20
Q

Is the Perineal Reflex seen in normal animals?

A

Yes

21
Q

What is the afferent of the Perineal Reflex?

A

Pudendal nerve

22
Q

What will occur when performing the perineal reflex on an animal?

A

Tightening of the anal sphinctor

23
Q

When is the perineal reflex not seen?

A

Animal with spinal cord disease, or a damaged pudendal nerve

24
Q

Myotatic Reflex Afferents

A

Muscle Spindle receptors sensing muscle stretch

25
Q

How can you test the Deep Pain Response?

A

Pinch nail bed

26
Q

What does the Deep Pain Response test?

A

Deep pain (nociceptive pathways) cranial to the segments that innervate the limb you are testing

27
Q

Is Deep Pain Response seen in normal animals?

A

Yes

28
Q

When is deep pain response absent?

A

Animals with lesion cranial to the limb being tested

29
Q

What does it mean when there is no deep pain response?

A

Severe spinal cord injury

Anatomy 2 Final (3 decks)

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