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ANP neuro > neuro pt 3 > Flashcards

neuro pt 3 Flashcards

1
Q

Are Olfactory nerves (I) sensory nerves

A

Yes, their sensory fibres are for the smell

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2
Q

Are Optic nerves(II) sensory or motor

A

They are sensory nerves for vision

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3
Q

What happens in the optic nerves (II)

A

The optic nerves converge for the optic chiasma and then the tracts go to the thalamus as optical radiation to the occipital cortex

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4
Q

Are Oculomotor nerves (III)sensory or motor

A

They are motor nerves, that are referred to as the eye mover (4/6 of eye muscles)

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5
Q

What is special about the oculomotor nerves (III)

A

They are mixed motor nerves. They are parasympathetic fibres to the iris. They also have sensory proprioceptive afferents

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6
Q

Are the trochlear nerves sensory (IV)or motor and where are they found

A

They are motor nerves, the are one pair of eye muscles and they connect from the dorsal membrane to the superior oblique eye muscle.

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7
Q

Are the Trigeminal nerves (V) sensory or motor

A

they are both, the sensory nerves can be found in the face and the motor fibers are for chewing.

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8
Q

What are the 3 divisions of the trigeminal nerves (V)

A

THe ophthalmic,maxillary and mandibular division

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9
Q

Are the abducens nerves(VI) sensory or motor

A

They are a motor muscles to the lateral rectus. It controls eye movement.

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10
Q

Are the vestibulocochlear nerves (VIII) sensory or motor

A

They are sensory nerves for balance

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11
Q

Are the facial nerves(VII) motor or sensory

A

They are mixed nerves ,but primarly motor

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12
Q

How many branches do facial nerves (VII) have and who are they?

A

There 5 major branches and they are parasympathetic to the lacrimal gland, a part of 2 salivary glands and sensory o 2/3 of the tongue.

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13
Q

Are glossopharyngeal nerves(IX) sensory or motor

A

They are mixed neurons. They are motor with the gag-relax and swallowing, they have parasympathetic fibres to the parotid glands. Their sensory nerves are related to taste, pressure touch and pain . also with the carotid sinus

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14
Q

Are the vagus nerves (X) sensory or motor

A

they are mixed nerves and they extend beyond the head and neck

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15
Q

How are the vagus nerves (X) motor and sensory

A

They are motor nerves, because the are parasympathetic to the, hear,lungs, abdominal and somatic to the pharynx and larynx.
They are sensory nerves because of the carotid sinus. They can send info to the muscles.

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16
Q

Are the accessory nerves (XI) sensory or motor

A

They are motor nerves ( but mixed)

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17
Q

The function of the accessory nerves (XI)

A

They are neck and head movements .

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18
Q

Are hypoglossal nerves(XII) motor or sensory

A

They are motor nerves beneath the tongue.

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19
Q

What is the function of hypoglossal nerves(XII)

A

Mixing, swallowing and speech

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20
Q

What is the meaning of root when talking about spinal nerves

A

it is a one-way traffic

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21
Q

What is the meaning of ramus when talking about the spinal nerves

A

it is a 2-way traffic

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22
Q

The ventral rami branch out and make lateral connections outside of the spinal cord , except for

A

The T2-T12.

23
Q

Why are several fibres in the ventral rami are important

A

To avoid paralysation

24
Q

Where are the C1-C4 nerves found

A

They are found deep in the neck under the sternocleidomastoid

25
Q

What are the common branches of the cervical plexus and the neck

A

the cutaneous nerves

26
Q

What is the most important nerve in the cervical plexus and the neck.

A

The phrenic nerve, they are both sensory and motor nerves to the diaphram.

27
Q

Where is the auxiliary nerve found

A

They are found in the shoulders

28
Q

Where are the musculocutaneous nerve found

A

In the bicep brachii and barchialis to flex

29
Q

Where are the median nerves found

A

They are found in the flexor muscles in anterior forearm and palm

30
Q

Where are the ulnar nerves

A

They are medial to the elbow that follows to the ulna to the wrist and fingers

31
Q

Where are the radial nerves

A

The are found at the humerus and the dorsal part of the hand

32
Q

What are the nerves on the back

A

They are the dorsal rami

33
Q

Where are the anterolateral thorax

A

At the ventral rami t1-t2 (simple and segmented)

34
Q

Where and what do the femoral never do

A

They are found at the anterior thigh muscles and they are flexors and knee extensors

35
Q

Where and what does the obturator nerve do

A

It is found at the medial thigh and is an adductor muscle.

36
Q

What is the sacral plexus

A

L4-S4 they are in the lumbar region and branches to the buttocks,lower limbs and pelvis.

37
Q

Where is the sciatic nerve found

A

They are found in the posterior thigh and diverge into the musulocutaneos and median nerve

38
Q

Where is the tibial nerve found

A

behind the knee to the posterior calf to foot

39
Q

where is the common fibular nerve found

A

to the knee joint ,calf and dorsum foot

40
Q

Where are the superior and inferior gluteal nerves found

A

In the buttocks

41
Q

Where are the pudendal nerves found

A

Muscle and skin of perineum

42
Q

What is the dermatome

A

The area of the skin that braches of a single spinal nerve

43
Q

What are nonencapsulated nerve ending

A

They are found in the epithelian and CT
They respond to pain temp and pressure and activated when painful stimuli

44
Q

What are vanilloid receptor

A

Ion channel open by heat,low pH and chemicals ( spicy)

45
Q

What are itch receptors

A

They are found in the dermis and activated by inflammatory chemicals like histamine

46
Q

What are epithelial tactile complexes

A

They are light pressure receptor (touch) from the dermis and epidermis

47
Q

What are hair follicle receptors

A

light touch receptors by bending hair

48
Q

What determines an encapsulated nerve ending

A

enclosed by ct and are mechanoreceptors

49
Q

What are tactile corpuscles

A

sensory terminals surrounded by Schwann cells and thin CT capsule

50
Q

What are lamella corpuscles

A

single dendrite that respond to pressure first applied

51
Q

What is bulbous corpuscles

A

spray of receptors endings for deep and continuous pressure

52
Q

What are muscle spindles

A

they are proprioceptors in the muscles that detect muscle stretch and resist the stretch

53
Q

What are the tendon organs?

A

they are proprioceptors in the tendons
that have a reflex to relax when muscle shortens

54
Q

What are joint kinesthetic receptors

A

they are proprioceptors that sense the limb movement and aware of it

ANP neuro (5 decks)

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