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A-CNS Histo > receptors 2 > Flashcards

receptors 2 Flashcards

1
Q

بسم الله الرحمن الرحيم
“يسقي بماء واحد ونفضل بعضها علي بعض في الأكل”

Unencapsulated Exteroceptors

A

Free nerve endings
Peritricihal nerve ending
Merkles tactile disc

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2
Q

Encapsulated Exteroceptors

A

1-Messiner
2-Pacinin
3-Ruffini
4-Krause end bulb

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3
Q

Ruffini corpuscles is
SITE

A

Capsulated Exteroceptor
Dermis + Subcutanuous tissue
Palm and sole

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4
Q

Ruffini Corpuscle
Fucntion

A

Mechanoreceptor responds to tension in the surrounding fibers of collagenous Connective tissue

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5
Q

Microscopic of Ruffini describe

A

Elongated fusiform 1x0.1
C.T capsule + Core of Collagenous Fibers
receive afferent nerve fibers losing it mylein sheath and give branches like (Diffuse Arborizations) end with flattend terminals between fibers of collangenous C.T.

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6
Q

Genital corpuscle is ?

A

Krause’s end Bulb

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7
Q

Site of Krause end bulb

A

Conjunctiva
Tongue
Mouth
External gentilila — genital Corpuscle

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8
Q

Microscopic of Krause end bulb

A

Small simple
C.T Capsle+ One afferent nerve fibers losing it myelin giving network on non myelinated nerve endings

large
C.T capsule + Core gelatious with nuclei + One or More afferent nerves losing myelin and Gives network of non myelinated nerve terminals

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9
Q

epidermins

A

Free nerve ending
merkels tactile disc
peritrichial nerve ending baske lkie a

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10
Q

dermis

A

Messiner
dermal papillae
fine touch

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11
Q

deeeeep

A

PACINIAN
Deep pressure

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12
Q

palm sole

A

Ruffini

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13
Q

Genitals + conjunctiva tongue mouth

A

Krasue end bulb

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14
Q

proprioceptors

A

تاخذ بالها من انقباض العضلة
ودرجات الضغط المختلفة في العضلة والوتر
وحركة المفاصل
ووضعية الجسم وحركته

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15
Q

types of proprioceptors

A

1-Pacinian
2-Muscle spindle MI
3-Golgi Tendon Organ MI
4-Uncapsulated Diffuse free nerve endings in many places Ligaments ,Joint Capsule , periosteum
Pacinan - Muscles spindle -Golgi Tendon -Free Nerve Endings

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16
Q

Stretch receptors fucntions

A

They are muscle spindle and Gogli Tendon Organ
- Proprioceptive impulses from them what do they do?
Regulate Myotatic relfelxex + send to cerebellum to regulate Muscle tone and Synergy

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17
Q

site Of Muscles spindles

A

Skeletal Muscles
extermities
Muscles of Fine touch

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18
Q

Function of Muscles spindle in Active reflex

A

Contraction of Contractile part of intrafuasl Muscle fibers

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19
Q

Functions of Muscles spindle In Passive Stretch …

A

Pull on tendon as in tendon reflexes and Knee Jerk

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20
Q

Muscle spindle stimulation

A

شد العضلة جامد في المسل سبندل هتبعت للحبل الشوكي ويرجع يديك انقباض للعضلة عشان متزودش تمدد للعضلة والا هتتقطع

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21
Q

Microscopc Characteristics of Muscles spindles

A

2-5 x .2 mm Encapsulated Muscular Corpscle containg 2-12 intrafuasl fibers which are
small in diameter than Extrafusal fibere
Indistincit striations
Non contractile central part

22
Q

Compare between intrafusal and extrafusal Fibers

A

Intrafusals are smaller in diameter
Inditinict striations
Non contractile Central part

23
Q

ايه فايدة السترايشنز في المسل سبندل ؟

A

بتشد الانوية اللي في النص حيث ان الخطوط دي موجودة علي الاطراف
فتحس المسل سبندل ان العضىلة انقبضت

24
Q

Mention types on intrafuasl muscles fibers

A

Nuclear Bag fibers
Nuclaer Chain fibers

25
Q

Describe Nuclear bag fibers

A

1-4 In each muscles spindle
Longer Larger than Nuclear Chain
Expanded Non Contractile Part with
Many closely Packed Nuclei

26
Q

Describe Nuclear Chain Fibers of Muscle spindle

A

10 in A spindle
Short Narrower
Uniform diameter no Expanded Bag
The nuclei arranged in a Row as chain

27
Q

What are the annulospiral endings ?

A

The terminal branches of Large myleinated sensory fibers which winds around nuclei of Muscles spindle fiber representing primary afferents

28
Q

What flower spay endings?

A

Also called 2rdy endings
the 2ndry afferents nerves receving the terminals of smaller sensory fiber which supply nuclear areas of Nuclear chain Fiber in muscles spindle
terminating on each side of Annulospiral endings

29
Q

the contractile part on intrafusal fibers recives?

A

Small motor fibers axons of gamma neurons.
Stimulation of motor neurons cause both ends of intrafusal muscles fiber to contract activating sesnsory Part

30
Q

Stimulation of motor neurons of muscles spindle fibers cause ?

A

both ends of intrafusal muscles fiber to contract activating sesnsory Part

31
Q

Golgi tendon Organ is at ?

A

Junction of Muscle with tendon

32
Q

Function of Golgi Tendon Organ mention

A

Detect change in Mucles tension and infrom CNS about it thanks !

33
Q

Microscopic structure of Gogli Tendon Organ describe

A

Similar in Size of Muscle spindle
2-5 x0.2 mm
Lamellated Capsule continuous with its outermost with Perinural Sheath
The primary afferent nerves enter it at the Equatorial Region giving ascending and descending unmeylinated Branches To surroud type one collagen fibrils
No Efferent ( motor ) innervation non contractile

34
Q

golgi tendon organ is contractile ?

A

NO

35
Q

Gogli tendon organ oute most layer contiuous with ?

A

Perinueral Sheath

36
Q

Play important role in Kinesthesia
الاحساس بالحركة

A

Muscles spindle
Golgi Tendon Organ

37
Q

Internal and external Ligaments have which type of receptos?

A

Gogli Tendon Organ like Tendons in everything type 1 collagen

38
Q

Capsule of joint contains ?

A

Free Nerve Endings
Pacinian

39
Q

Synovial membrane has … receptor

A

Pacinian

40
Q

Pacinan is repesented in 2 Areas of joint ?

A

Capsule + Synoval membrane

41
Q

Effectors

A

The termination of Motor fibers at effectors
Somatic
Sensory

42
Q

Somatic effectors ?

A

For skeletal muscles
Motor end plate

43
Q

Viscseral effector

A

Motor fibers to Cardiac and Smooth muscles
Seceretory fibers to glands giving terminals to Plamas membrane of cells of Acinin and tubules to scerte

44
Q

Compare between intrafusal and extrafusal muscle fiber imp !

A
45
Q

Enumerate proprioceptor imp !

A
46
Q

Intrafusal chartarized by ?

A

smaller than extrafussals

47
Q

Intrafusal chartarized by ?

A

smaller than extrafussals

48
Q

gogli tendon organ cc by?

A

has afferents at eqatorial

49
Q

Krasue end buLBS

A

2 types small large
not proprio but mechano
has afferent not efferent

50
Q

اسئلة الاختيار من متعدد مش للبصمجة الفكرة انه بتثبت المعلومة
لازم تقرا كل السؤال بعدين تقرا
كل الاجابات
وتنفي كل الاجبات الاخري كده انت ثبتت النفي في دماغك
ثبتت الاثبات
لازم ؟

A

تدي الاسئلة وقت

51
Q

الحمدلله رب العالمين

A

A-CNS Histo (7 decks)

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