SPINAL CORD
Bundle of nerve roots extending from conus medullaris?
What is the cauda equina
Neuron cell bodies are located in this part of the spinal cord
What is gray matter
This nerve arises from roots C3, 4, 5 and innervates the diaphragm
What is Phrenic N.
RMP is indicated at _________ mV.
If threshold is reached, at _________ mV, an action potential will be generated.
-70 mV = RMP
-55 mV = Threshold
Damage to which spinal nerve may exhibit the inability to DF your Right ankle?
R common fibular n.
Long, fibrous extension from spinal cord
What is Filum Terminale
______________ cells are responsible for myelin sheath in the CNS. ________________ cells are responsible for production of myelin sheath in the PNS.
What are Oligodendrocytes and Schwann cells.
Sacral Plexus arises from roots ______________.
Lumbar Plexus arises from roots _____________.
Brachial Plexus arises from roots _____________.
Cervical Plexus arises from roots _____________.
VR S1-S4
VR L1-L4
VR C5-T1
VR C1-C4
An inhibitory postsynaptic potential (IPSP) is associated with _______________.
An excitatory postsynaptic potential (EPSP) is
associated with ________________.
IPSP - Hyperpolarization
EPSP - Depolarization
Your patient present with weakness in both rhomboids and the levator scap mm. d/t nerve damage. Which nerve is affected?
What is dorsal scapular n.?
Terminal end of the spinal cord at L1/L2 vertebral level
What is the conus medullaris
A 43 yo female presents to the emergency room with neck pain, tinnitus and nausea. Upon diagnostics, it was found her CSF levels were low. Which glial cells were found to be malfunctioning?
Ependymal cells
The order of the branches in the brachial plexus, from superior to inferior, are:
What is:
Musculocutaneous
Axillary
Radial
Median
Ulnar
This structure contains the neurotransmitters in the axon terminal/synaptic end bulb of a neuron
What is Synaptic vescicle
Your patient suffered a stroke and is unable to dorsiflex her left ankle. The muscle that is capable of DF and the nerve that innervates this muscle is?
The tibialis anterior; the deep fibular n.
The 3 layers of the meninges from outer to inner are:
What is the Dura Mater, Arachnoid Mater, and Pia Mater
These cells are not excitable but are capable of mitosis
What are neuroglial cells
The femoral and obturator n. are part of which plexus?
What is the Lumbar Plexus
A neuron with many dendrites and one long axon is called a ________________ neuron.
What is multipolar?
Gary presents with weakness with internal rotation (IR) of the shoulder. Upon evaluation, findings included weakness in his teres major. Which n. is possibly impaired?
What is lower subscapular
Cerebrospinal fluid (CSF) is found in this space of the spinal cord?
What is the subarachnoid space
This connective tissue surrounds the entire nerve?
This connective tissue surrounds a fascicle?
This connective tissue surrounds an individual axon?
Epineurium
Perineurium
Endoneurium
The deep fibular and superficial fibular n. arise from what plexus?
What is the Sacral Plexus
What triggers exocytosis of the synaptic vesicles, that contain the neurotransmitters?
What is the influx of Ca2+ ions
The superior gluteal nerve supplies which 4 structures?
What is:
Gluteus minimus
Gluteus medius
Piriformis
TFL