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Which nerves supply the upper extremity (brachial plexus)?
What 5 things form brachial plexus?
ROBERT TAYLOR DRINKS COLD BEER
Which are the 5 rami that innnervate the brachial plexus?
Are the rami superior or inferior to the clavicle bone?
(brachial plexus) Which are the 3 types of trunks ?
(brachial plexus) by which ventral rami is the upper trunk formed by? (2)
C5 and C6
(brachial plexus) by which ventral rami is the middle trunk formed by?
(brachial plexus) By which ventral rami is the lower trunk formed by? (2)
C8 and T1
(brachial plexus) Each trunk divides into which 2 divisions?
(brachial plexus) what are the 3 chords that form ?
(brachial plexus) how is the lateral chord formed? (2)
-anterior division from upper trunk
-anterior division from middle trunk
(brachial plexus) how is the medial chord formed?
anterior division of the lower trunk
(brachial plexus) How is the posterior cord formed? (3)
from the posterior divisions of all 3 trunks
(brachial plexus) Where does the medial cord lie in relation to the axillary artery?
medial cord lis medial to the artery
(brachial plexus) how does the lateral cord lie in realtion to the artery?
lateral cord lies lateral to the artery
(brachial plexus) how does the posterior cord lie in relation to the axillary artery?
posterior cord lies posterior to the artery
(brachial plexus) Which are the 5 largest branch nerves of the brachial plexus?
(brachial plexus) which 2 arteries does the posterior cord form?
(brachial plexus) which 2 arteries does the lateral cord form?
-lateral side of median nerve
(brachial plexus) which 2 arteries does the medial cord form?
-medial side of the median
(brachial plexus) where does the axillary nerve go to?
(brachial plexus) where does the radial nerve go to? (2)
(brachial plexus) where does the ulnar go to?
behind the medial epicondyle
(brachial plexus) where does the median go to?
in the middle of the forearm
(brachial plexus) where does the musculocutaneous go to?
(brachial plexus) What range of ventral rami innervates the posterior cord?
(brachial plexus) which muscles does the axillary artery supply? (2)
(brachial plexus) location of radial nerve
-spirals behind the humerus
(brachial plexus) which muscles does the radial nerve supply? (2)
(brachial plexus) which 3 ventral rami innervate the lateral cord?
(brachial plexus) which muscle group does the musculocutaneous supply?
anterior muscle of the arm
(brachial plexus) Which muscle groups does the lateral median nerve supply? (3)
-lateral and deep msucles of the hand
(brachial plexus) which ventral rami innervate the medial cord? (2)
(brachial plexus) which muscles does the medial cord supply? (2)
-medial muscles of the hand
What an injury to musculocutaneous do? (2)
-weakened forearm flexion and supination
whay would an injury to radial artery do? (2)
-inability to extend the wrist
-possible inability to extend the forearm
what would an injruy to median artery do? (2)
-inability to flex the 2nd and 3rd fingers
-thenar function weakened
what would an injury to ulnar artery do?
-loss of hand muscles
which 9 ventral rami innervate the lumbosacral plexus?
what 5 ventral rami form the lumbar plexus?
What muscles does the ventral rami from L1-L5 supply? (2)
-anterior and medial thigh
L1-L3 ventral rami supply?
Femoral nerve L2-L4 supplies? (2)
Obturator L2-L4 supplies?
In which structure can the femoral nerve be seen?
Which trunk forms the sacral plexus? (2)
-sacral ventral rami
Which ventral rami make up the lumbosacral trunk?
which ventral rami make up the sacral ventral rami?
By which ventral rami is the sciatic nerve formed by? (5)
where does the formation of the sciatic nerve occur?
inside the pelvis
What muscles does the sciatic nerve supply?
-entire lower extremity except for anterior and medial thigh
into which 2 nerves does the sciatic nerve divide in the posterior thigh?
Which is locatd more medial: tibial or common fibular?
which 2 muscle groups is supplied by the tibial?
-most of the hammys
Behind which structure does the tibial nerve go behind and with which 3 muscles?
*flexor digitorum longus
Which two nerves supply the plantar surface of foot?
lateral and medial plantar nerve
From which nerve does the lateral and medial plantar nerve arise from?
Around which structure does the common fibular nerve go around?
head of the fibula
into which 2 nerves does the common fibular convert into?
which muscle group does the superficial fibular nerve supply?
lateral compartment of the leg
which 2 muscle groups does the deep fibular nerve supply? (2)
-anterior compartment of the leg
-dorsum of the foot
(sacral plexus) superior gluteal supplies which msucles? (3)
-gluteus medius and minimus
-tensor fascia latae
(sacral plexus) inferior gluteal nerve supplies which muscle?
(sacral plexus) pudendal nerve supplies what?
-the muscles and skin of the perineum
*area between thighs from coccyx to pubis
(sacral plexus) which ventral rami innervate the lateral rotators of the thigh? (3)
Injury to femoral nerve leads to
loss of strong leg extension
injury to obturator nerve...
loss of adduction of the thigh
injury to tibial nerve (3)
-loss of strong plantar flexion
-weak inversion of the foot
-decreased extension of the thigh
injury to superficial fibular?
loss of eversion
injury to deep fibular? (2)
-loss of dorsiflexion
-weak inversion of the foot
What is a herniated disc?
-rupture of the annulus fibrosus that allows the protusion of the nuclues pulposes
what does the nucleus pulposes do when it herniated out?
pushes the nerve root that is exiting from the cord
where are herniated discs common in?
Do all of peripheral nerves carry both motor and sensory info?