[Recalls] Anuta's Nerve Fibers, Peripheral Nerves Etc. Flashcards
This is a characterstic of dendrite rather than the axon:
Contains nissl bodies in the cytoplasm
This refers to the connections between nerve fibers
Synapses
This is not a glial cell
Melanocyte
This is not a characterstic of the myelinated nerve in the central nervous system
Produced by schwann cell
This is a characterstic of a type C fiber
Unmyelinated
Provides both motor and sensory innervation
As the schwann cells ages, the amount of cytoplasm in the myelin increases
This is not part of the peripheral nervous system
Spinal cord
The area of the spinal cord is the meeting place for the upper motor neuron and the lower motor neuron
Anterior horn
These are receptors for stretch
Ruffini corpuscles
This is not among the modalities of sensation
Equilibrium sense
This is not part of the reflex arc
Autonomic nerve
This refers to the segmental innervation of our skin by the spinal nerves
Dermatome
The most abundant neurotransmitter in the brain
Acetylcholine
The major inhibitor neurotransmitter in the brain
GABA
Major site of norepinephrine production
Locus ceruleus
Major site of acetycholine production
Locus ceruleus
Rate limiting step in the synthesis of catecholamines
Tyrosine hydroxylase
Classic neurotransmitters are removed from the synaptic cleft by all of the following except:
Irreversible binding with receptors
The main neurotransmitter of the sympathetic system is:
Norepinephrine
The following are monoamine transmitters except:
Glycine
All of the following are amino acids or amino-derived transmitters except:
Acetylcholine
NMDA receptor is involved in these 3 processes except:
Neuronal plasticity
Provides supportive scaffolding for the CNS
Schwann cell
Form myelin sheath in CNS
Ependymal cell
Form myelin sheath in PNS
Astroglia
Form macrophages
Oligodendrocytes
Control volume, secretion and composition of CSF
Microglia
Which level does the spinal cord of a child end?
L2-L3
Formed by ventral and dorsal roots
Spinal roots
Which among the following statement is not true?
The conus medullaris is a horse tail like a structure.
Which among the following statements is not true?
The gray matter is located at the peripheral portion of the cord
Which among the following is not true about the transition of impulse?
The delta type is a small fiber and transmits the impulse at a much slower rate.
Which among the following is not true about the pain pathway?
The pain stimulus initially travels the descending tract prior to the ascending tract of the spinal cord.
Which among the following chemicals in the brain inhibits pain?
Endorphins
Which among the following is not true about the ascending tracts?
Wakefulness or alertness is a function of the anterior spinothalamic tract.
Which among the following statements is not true about the ascending tracts?
The secondary neuron of the lateral spinothalamic tract direct scends to the ipsilateral cord and initially decussates at the brainstem to synapse with the secondary neuron.
Which among the following is not true about the spinal nerve root?
A normal human being has a total of 30 spinal nerve roots.
Which among the following is not true about the spinal nerve root?
Each anterior root has a dorsal root ganglion responsible for receiving pain at the nociceptors.
On neurologic exam, both of the lower extremities were spastic and rigid. The reflexes were hyper-reactive and that clonus was positive. What could have been the injury in this case?
Lower motor neuron injury
In the operating room, the surgical intern accidentally punctured the spinal cord leading to CSF leakage of about 30 cc. In your mind, this could have penetrated what structure?
Arachnoid mater
Which is not true about the artery of adamkiewitz?
It also supplies the cervical spinal cord
Which among the following is not under the control of the ANS?
Contraction of the skeletal muscles
A patient was seen presenting with rhythmic plantar flexion of the ankle upon brisked ankle dorsiflexion. Which among the statements is not true?
This signifies a lower motor neuron development
Which among the following statements is not true regarding the meninges?
The dura mater is a clear like, thin and delicate mater that is impermeable.
Which among the ff is not true about the lumbar puncture?
The needle has to get down to the subdural space to extract the CSF
Form myelin sheath in cns
Oligodendroglia
Form myelin sheath in pns
Schwann cell
For macrophages
Microglia
Control volume, secretion and composition of csf
Ependyma
Not a glial cell
Melanocyte
This is not a characterstic of the myelinated nerve in the cns
Produced by schwann cell
This describes myelin production
As the schwann cell ages, the amount of cytoplasm in the myelin increases
This is not among the modalities of sensation.
Equilibrium sense
This is not part of the reflex arc
Autonomic nerve
