Brachial Plexus
This nerve is responsible for innervating the Serratus Anterior
Long Thoracic Nerve
This nerve is responsible for the cremasteric reflex
The Gluteus Maximus' main muscle function is ____ and is supplied by this nerve.
Hip Extension, especially at higher speeds.
Inferior Gluteal Nerve.
Before they merge to become spinal nerves, motor signals come from which area?
Ventral Nerve Root
Inflammation of the carpal tunnel usually affects this nerve
Median nerve
This nerve is a direct branch from the C5 Nerve root
Dorsal Scapular Nerve
This nerve is assessed by testing hip adduction
Obturator
A positive Trendelenburg Gait test is when this is present and indicates weakness of _____
Hip Drop, Contralateral glute med/min (usually)
The Cervical plexus arises from which nerve roots?
C1-C4, with minor contributions from C5
Which spinal levels can be assessed by testing the achilles reflex?
S1, S2
The Median nerve is comprised of the medial branch of the ___ cord, and the lateral branch of the ____ cord
Lateral cord, medial cord
The Iliohypogastric nerve is supplied by the ___ Nerve root(s)
The sciatic nerve splits into two branches that are called ____ at this anatomical location.
Tibial, common fibular at the popliteal fossa
Sensory neuron cell bodies are located in which area of the spinal root?
Which spinal nerve roots supply the long thoracic nerve?
C5/C6/C7
Guyon's Canal contains this nerve
Ulnar Nerve
This nerve passes through the psoas and underneath the inguinal ligametn
Femoral Nerve
The tibial nerve is supplied by these nerve roots
L4-S3
Which Types of neurons are found in spinal roots (sensory/motor/both)
Both
Parkinson's disease is a progressive neurological disease that affects our ability to utilize and produce dopamine. The treatment is to provide a synthetic dopamine (L-Dopa). Why do we use it, and why does it stop working after ~ 10 years?
These patients lose the ability to produce their own dopamine.
It stops working because even though there is ample dopamine present at the axon terminal, the receptors they bind to have been destroyed by the progression of the disease.
Severing the posterior cord of the brachial plexus would affect 5 nerves. Name them
Axilliary, Radial, upper subscap, lower subscap, thoracodorsal
Traditionally, those who wore heavy utility belts could have compression of this nerve. It's function is ____
Lateral Cutaneous nerve.
Lateral thigh sensation
Trace the common fibular nerve.
Splits off sciatic nerve at the popliteal fossa --> wraps around the fibular neck --> splits into superficial and deep fibular branches.
What is a nerve synapse?
The Gap between the axon terminal and target cell.
Your patient has suffered a traction injury that has damaged the C5/C6 Nerve root.
Which trunk of the brachial plexus would be affected (superior/middle/inferior). Name 2 branches that come directly off this trunk and 2 terminal branches stemming from the anterior divisions of these nerve roots.
Musculocutaneous, Median