Lab 5 (Part 1) Flashcards

1
Q

The PERIPHERAL NERVOUS SYSTEM (PNS) is composed of how many pairs of NERVES?

A

43 pair of NERVES

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2
Q

How many pairs of NERVES are connected the the BRAIN, and what are they called?

A

12 pairs, called CRANIAL NERVES

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3
Q

How many pairs of NERVES are connected to the SPINAL CORD, and what are they called?

A

31 pairs, called SPINAL NERVES

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4
Q

What is CRANIAL NERVE number 1? Describe its function.

A

1 = OLFACTORY NERVE, a SENSORY NERVE used for smell

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5
Q

What is CRANIAL NERVE number 2? Describe its function.

A

2 = OPTIC NERVE, a SENSORY NERVE used for vision

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6
Q

What is CRANIAL NERVE number 3? Describe its function.

A

3 = OCULOMOTOR NERVE, a MOTOR NERVE used for movements of the eye/eyelid and constriction of the pupil

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7
Q

What is CRANIAL NERVE number 4? Describe its function.

A

4 = TROCHLEAR NERVE, a MOTOR NERVE used for movements of the eye
e.g. looking downwards
1 of 6 eye muscles; the SUPERIOR OBLIQUE

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8
Q

What is CRANIAL NERVE number 5? Describe its function.

A

5 = TRIGEMINAL NERVE, a SENSORY and MOTOR NERVE used to detect touch, temp., and pain from face. Chewing as well

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9
Q

What is CRANIAL NERVE number 6? Describe its function.

A

6 = ABDUCENS NERVE, a MOTOR NERVE used for lateral movement of the eye

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10
Q

What is CRANIAL NERVE number 7? Describe its function.

A

7 = FACIAL NERVE, a SENSORY and MOTOR NERVE used for taste from the anterior 2/3 of the tongue, muscles of facial expression, tears, saliva, nasal mucus secretion

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11
Q

What is CRANIAL NERVE number 8? Describe its function.

A

8 = VESTIBULOCOCHLEAR NERVE, a SENSORY NERVE used for hearing and equilibrium, detects info about balance/movement

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12
Q

What is CRANIAL NERVE number 9? Describe its function.

A

9 = GLOSSOPHARYNGEAL NERVE, a SENSORY and MOTOR NERVE used for detecting taste from the posterior 1/3 of the tongue, sensation from face and ear, regulate BP, secretion, of saliva, and swallowing muscles

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13
Q

What is CRANIAL NERVE number 10? Describe its function.

A

10 = VAGUS NERVE, a SENSORY and MOTOR NERVE used to detect sensory info from digestive and respiratory tracts, slows down heart rate, bronchoconstriction, GI secretion and motility, swallowing muscles

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14
Q

What is CRANIAL NERVE number 11? Describe its function.

A

11 = ACCESSORY NERVE, a MOTOR NERVE used for the head and neck muscles (STERNOCLEIDOMASTOID and TRAPEZIUS) and the swallowing muscles

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15
Q

What is CRANIAL NERVE number 12? Describe its function.

A

12 = HYPOGLOSSAL NERVE, a MOTOR NERVE used to control the muscles of the tongue

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16
Q

What NERVE is involved in the following situation: Person experiences VERTIGO (dizziness and loss of balance)

A

8, VESTIBULOCOCHLEAR NERVE

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17
Q

What NERVE is involved in the following situation: Person experiences PTOSIS (drooping of 1 eyelid)

A

3, OCULOMOTOR NERVE

18
Q

What NERVE is involved in the following situation: Person is hit in the face and has ANOSMIA (loss of smell)

A

1, OLFACTORY NERVE

19
Q

What NERVE is involved in the following situation: Person with MS has vision impairment as a result of NEURITIS (NERVE inflammation)

A

2, OPTIC NERVE

20
Q

What NERVE is involved in the following situation: Person has EXTORSION of 1 eye (eye rotates outwards) due to paralysis of the SUPERIOR OBLIQUE muscle

A

4, TROCHLEAR NERVE

21
Q

What NERVE is involved in the following situation: Person is suffering from GASTROPARESIS, where the muscles of the stomach and intestine don’t work properly

A

10, VAGUS NERVE

22
Q

What NERVE is involved in the following situation: Person has DIPLOPIA (double vision) due to medial rotation of the eye

A

6, ABDUCENS NERVE

23
Q

What NERVE is involved in the following situation: Person has DROPPED SHOULDER SYNDROME

A

11, ACCESSORY NERVE

24
Q

What NERVE is involved in the following situation: Person has BELL’S PALSY (form of facial paralysis)

A

7, FACIAL NERVE

25
Q

What NERVE is involved in the following situation: Person suffers from a type of NEURALGIA (NERVE pain) called TIC DOULOUREUX (the suicide disease)

A

5, TRIGEMINAL NERVE

26
Q

What NERVE is involved in the following situation: Person has difficulty speaking and manipulating the tongue after and ENARTERECTOMY to unblock a carotid artery

A

12, HYPOGLOSSAL NERVE

27
Q

What NERVE is involved in the following situation: Difficult to elicit a gag reflex

A

9, GLOSSOPHARYNGEAL NERVE

28
Q

In the SOMATIC DIVISION, SPINAL NERVE contains:

A

MOTOR and SENSORY AXONS

29
Q

In the SOMATIC DIVISION, DORSAL ROOT of SPINAL NERVE contains:

A

SENSORY AXONS

30
Q

In the SOMATIC DIVISION, DORSAL ROOT GANGLION contains:

A

SENSORY CELL BODIES

31
Q

In the SOMATIC DIVISION, VENTRAL ROOT of SPINAL NERVE contains:

A

MOTOR AXONS

32
Q

In the AUTONOMIC DIVISION, VENTRAL RAMUS of SPINAL NERVE is made up of:

A

efferent (both AUTONOMIC and SOMATIC) fibers

33
Q

In the AUTONOMIC DIVISION, RAMI COMMUNICANTES (pl) connects to:

A

AUTONOMIC SYMPATHETIC GANGLION division of ANS

34
Q

In the AUTONOMIC DIVISION, SYMPATHETIC GANGLIA form:

A

CHAIN GANGLIA, house CELL BODIES of VISCERAL MOTOR NEURONS

35
Q

In the AUTONOMIC DIVISION, SYPATHETIC TRUNK is:

A

the fibers of ANS

36
Q

What are the 4 NERVE PLEXUSES?

A

1) CERVICAL PLEXUS
2) BRACHIAL PLEXUS
3) LUMBAR PLEXUS
4) SACRAL PLEXUS

37
Q

How many CERVICAL NERVES are there?

A

8

38
Q

How many THORACIC NERVES are there?

A

12

39
Q

How many LUMBAR NERVES are there?

A

5

40
Q

How many SACRAL NERVES are there?

A

5

41
Q

How many COCCYGEAL NERVES are there?

A

1