lower subscapular n. posterior chord lateral pectoral n. lateral chord thoracodorsal n. posterior...
TRANSCRIPT
Systemic anatomy exam III Review
Lower Subscapular n.posterior chord
Lateral Pectoral n. lateral chord
Thoracodorsal n.posterior chord
Axillary n.posterior chord
Musculotaneos n. lateral chord
Ulnar n.medial chord
What portion of the brachial plexus do the following directly ( key word) arise
from?
Axillary n.C5,6
Musculotaneos n.C5, 6, 7
Suprascapular n.C5, 6
Median n.C5, 6, 7, 8 & T1
Radial n.C5, 6, 7, 8 & T1
What Spinal nerve roots form the following peripheral nerves?
Thoracodorsal n .(aka middle
supscapular n.)C6, 7, 8
Long Thoracic n.C5, 6, 7
Ulnar n.C8, T1
Lower supscapular n.C5, 6
Dorsal scapular n.C5
What Spinal nerve roots form the following peripheral nerves?
Lesser occipital n.C2,3
Phrenic n.C3, 4, 5 (keep diaphragm alive)
Transverse cervical n.C2,3
Greater (aka Great) auricular n.
C2,3Supraclavicular n.
C3,4Femoral n.
L2, 3, 4 (kick the door)Illioinguinal n.
L1
What Spinal nerve roots form the following peripheral nerves?
Obturator n. L2, 3, 4
Illiohypogastric n. L1
Genitofemoral n. L1,2
Lumbosacral trunk L4, 5
Tibial n. L4,5 & S1, 2, 3
Superior Gluteal n. L4,5 & S1
Inferior Gluteal n.L5 & S1,2
Common Peroneal n.
L4, 5 & S1, 2
What Spinal nerve roots form the following peripheral nerves?
SymphisisAmphiarthrosisSecondary Cartilaginous
Classify the joint between two vertebral bodies
Anterior & ProximalArticulates with the trochlear notch of humerusAka semilunar notch
Where is the trochlear notch of ulna?
Inserts directly above the deltoid m.
Trapezius m. inserts directly superior to what muscle?
Axons carry information away from the somaDendrites carry information towards the soma
What direction do axons and dendrites carry information to the soma?
SSA, SVA(ie) sight, sound, equilibrium
What information do bipolar neurons carry?
Dorsal root is sensoryVentral root is motor
In the back door & out the front door
State the Bell Megendie Law
The nerve supplying a joint also supplies both the muscles that move the joint and the skin covering the articular surface of those muscles.
State Hilton's Law
The posterior aspect of the IVD
What does the recurrent meningeal n. intervate?
Medial BranchSuperior to T6 is sensoryInferior to T6 is motor
Lateral BranchSuperior to T6 is motorInferior to T6 is sensory
State the sensory and motor portions of the medial and lateral branches of
the dorsal ramus
GSAGVAGSEGVE
What are the functional components of the radial n?
cause the cell to move closer to threshold
An influx in sodium (Na) causes what effect on the cell
Foot Drop
Loss of the deep peroneal n. causes what condition?
NO
If you lose the common peroneal nerve, can you still dorsiflex the
foot?
YESBecause you can still use the tibialis posterior m.
If you lose the common peroneal nerve, can you still invert the foot?
Damage most commonly occurs with trauma to the lateral aspect of the proximal fibula
(ie) motorcycle accidents & bicycle wrecks
What is the most common way to damage the common peronal nerve?
NO
If you lose the common peroneal nerve, can you still evert the foot?
Arachnoid & Pia
What 2 layers of meninge have CSF?
Dorsal Scapular n.
What nerve innervates the levator scapular m?
Median n.
Entrapment of what nerve causes carpal tunnel syndrome?
C5, 6, 7, 8 & T1
Cutting what nerve roots prevents flexion of the elbow?
L2, 3, 4 (kick the door)
Cutting which nerve roots prevents extension of the knee?
C5, 6
What nerve roots form the superior trunk of the brachial plexus?
Long Thoracic n.
Winged scapula is caused by damage to what nerve?
Radial n.
Wrist drop due to damage of what nerve?
flexor carpi ulnaris m.½ of flexor digitorum profundus m.
What mucles are inervated by the ulner n?
Femoral n.
Sapheneous n. comes from what nerve?
L5 & S1,2
What nerve roots innervate the gluteus maximus m.?
Genitofemoral n.
Name the nerve on anterior surface of psoas major m.?
C6
Damage to what spinal nerve causes loss of feeling to thumb?
C5, 6
What nerve roots innervate the shoulder abducting muscles?
Tibial n. & Common Peroneal n.
What 2 nerves form sciatic n.?
Radial n.
Cutting what nerve prevents extension of elbow joint?
Median n.
What nerve innervates the Palmaris longus ?
Drop shoulderInternal rotation of shoulderFlexion of wrist
What are the signs of Erb Duchenne palsy?
Quadriceps femorus (4 muscles)Part of the PectineusSartoriusIlliacus
What muscles does the femoral nerve innervate?
T4 & T5
T4 nerve root exits between what vertebrae?
L4, 5 & S1
What nerve roots innervate the tensor fascia latae m.?
External rotate femurAbduct femur
What is the action of the piriformis muscle?
S2, 3, 4
What nerve roots form the pudendal nerve?
Region of T11-L1
Where is the L4 spinal segment found in the vertebral column?
30
How many dermatomes are there?
62 (31 pairs)
How many spinal nerves are there?
C1
What spinal nerve does not have a dermatone?
T2-T12
What spinal nerves form the intercostals nerves?
Deep peroneal n.
What nerve innervates the skin between digits 1 & 2 of the foot?
Pia matter
What forms the denticulate ligaments?
Ascending tracts carry sensory informationDescending tracts carry motor information
What information do ascending & descending tracts carry?
CN V Manibular Divison of Trigeminal Nerve
What nerve innervates the TMJ?
in a postereolateral direction
What direction do most herniated discs herniate?
Lateral horn T1 – L2
Where do the preganglionic neuron cell bodies originate in sympathetic
nervouse system?
Brain stem and sacral segements S2,3,4
Where do the preganglionic neuron cell bodies originate in
parasympathetic nervouse system?
GangliaAdrenal meduallaMyoneural junctoin of skeletal muscle
Where are nicotic receptors found?
Ecrine sweat glandsBlood vessels of skeletal muscle
What tissues are innervated by postganglionic sympathetic
cholinergic neurons?
DopamineNorepinephrineEpinephrine
What are catecholamines?
Medulla of the adrenal gland
Where does epinephren come from in the body?
Terminal ganglia
In the parasympathetic nervous system, where do preganglionic
neurons synapse?
Ulner n.
Damage to what nerve causes claw hand?
causes BP to increase
What do stimulating alpha receptors do to blood pressure?
4
How many pulmonary veins are in the humans?
Brachiocephalic TrunkRight common carotid artery branches off it
Left common carotid arteryLeft subclavian artery
What are the branches of the aortic arch?
DiameterViscosityLength
What affects peripheral resistance of blood?
Shut
In ventricular systole, the AV valves are?
Draw and name branches of Circle of Willis
Draw and name Brachial Plexus