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A-CNS Histo > receptors 2 > Flashcards

receptors 2 Flashcards

(51 cards)

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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

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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

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A

Intrafusals are smaller in diameter
Inditinict striations
Non contractile Central part

23
Q

ايه فايدة السترايشنز في المسل سبندل ؟

Study These Flashcards
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

Study These Flashcards
A

Nuclear Bag fibers
Nuclaer Chain fibers

25
Describe Nuclear bag fibers
1-4 In each muscles spindle Longer Larger than Nuclear Chain Expanded Non Contractile Part with Many closely Packed Nuclei
26
Describe Nuclear Chain Fibers of Muscle spindle
10 in A spindle Short Narrower Uniform diameter no Expanded Bag The nuclei arranged in a Row as chain
27
What are the annulospiral endings ?
The terminal branches of Large myleinated sensory fibers which winds around nuclei of Muscles spindle fiber representing primary afferents
28
What flower spay endings?
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
the contractile part on intrafusal fibers recives?
Small motor fibers axons of gamma neurons. Stimulation of motor neurons cause both ends of intrafusal muscles fiber to contract activating sesnsory Part
30
Stimulation of motor neurons of muscles spindle fibers cause ?
both ends of intrafusal muscles fiber to contract activating sesnsory Part
31
Golgi tendon Organ is at ?
Junction of Muscle with tendon
32
Function of Golgi Tendon Organ mention
Detect change in Mucles tension and infrom CNS about it thanks !
33
Microscopic structure of Gogli Tendon Organ describe
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
golgi tendon organ is contractile ?
NO
35
Gogli tendon organ oute most layer contiuous with ?
Perinueral Sheath
36
Play important role in Kinesthesia الاحساس بالحركة
Muscles spindle Golgi Tendon Organ
37
Internal and external Ligaments have which type of receptos?
Gogli Tendon Organ like Tendons in everything type 1 collagen
38
Capsule of joint contains ?
Free Nerve Endings Pacinian
39
Synovial membrane has ... receptor
Pacinian
40
Pacinan is repesented in 2 Areas of joint ?
Capsule + Synoval membrane
41
Effectors
The termination of Motor fibers at effectors Somatic Sensory
42
Somatic effectors ?
For skeletal muscles Motor end plate
43
Viscseral effector
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
Compare between intrafusal and extrafusal muscle fiber imp !
45
Enumerate proprioceptor imp !
46
Intrafusal chartarized by ?
smaller than extrafussals
47
Intrafusal chartarized by ?
smaller than extrafussals
48
gogli tendon organ cc by?
has afferents at eqatorial
49
Krasue end buLBS
2 types small large not proprio but mechano has afferent not efferent
50
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 ؟
تدي الاسئلة وقت
51
الحمدلله رب العالمين

A-CNS Histo (7 decks)

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