Stretch Reflex 21% of Motor Imp Flashcards
بسم الله الرحمن الرحيم وبه نستعين
Names of Stretch Reflex?
1-SR: Stretch reflex
2-MR : Myotatic Reflex
3-MSR Muscle spindle Reflex
4-MMR Muscle to Muscle Reflex
Stretch reflex is ?
Reflex CONTARCTION of muscle in reponse to its STRETCH
اي ريفليكس هنتكلم
عن ؟
سراق العصر؟
SRAC ERA
Stimults
Receptor
Afferent
Center
Efferent
Response
AIM
Stimulus of stretch reflex
Mild or moderate stretch not SEVERS —- Inverese stretch refelx
لما واحد يضربك بوش الكوتشي في وتر اخيل جامد العضلة هترتاح وهتقع علي الارض
ممكن الوتر يتقطع
Receptor of Stretch reflex?
Muscle Spindle Intrafusal Muscle fibers strtech midl and moderate
Afferents of Stretch reflex ?
Type Ia fibers A alpha:primary afferent
Type II fibers A delta
to AHCs: Secondary afferent
The Center of Stretch reflex is ?
AHCs characteritisc in strecth reflex ?
-Monosynaptic
-Fastest
-less delay Central
AHCs characteritisc in strecth reflex ?
-Monosynaptic
-Fastest
-less delay Central
Efferent of Stretch Reflex ?
Aa Type Ia Fibers
Thick Myelinated Fastest
Respone of Strech reflex ?
Muscle contration
Effectort or Strecth Reflex ?
Ordinary Contractile ExtraFusal Muscle Fibers
Aim of Strecth Reflex ?
It is Negative feed back reflex aims to keep length of Contractile muscle constant!!!!!!!!!
CAim of Strecth Reflex ?
It is Negative feed back reflex aims to keep length of Contractile muscle constant
Charactirstics of Mucle stretch Reflex?
MFC LARy
only monosynaptic+Fastet+less central delay
Local to the stretched muscle
Antigravity muscles has alot of muscles spindles so it is appear in it mostly due to gravity effect i strecthing these muscles
RECEIPROCAL INNERVATION:
Contratcion of Stretched Muscle + Inhibition of Antagonistic one
Contraction Of biceps relax triceps
RECEIPROCAL INNERVATION: in stretch reflex explain
Contratcion of Stretched Muscle + Inhibition of Antagonistic one
Contraction Of biceps relax triceps
Type of Muscles spindle and what is it monitorig?
Mechanorecetpros monitoring The muscle lenght
The rate of Change in Musclce Lenth \
اوصف لي muscle spindle
Encapsulated 3-10 IntraFusal Muscle Fibers parallel to extrafusals
Monitoring Muscle Length
The ends of capsule are attached to tendons of Muscles