[Recalls] 1C Prelim Flashcards
Function of Myelin
Makes conduction faster
Connection between nerve fibers
Synapses
Characteristic of type C fibers
Unmyelinated
Primary vesicles
Prosencephalon
Mesencephalon
Rhomboencephalon
Most important cause of neural tube defect
Folic acid deficiency
The nervous system arises from
Ectoderm
Has a feedback mechanism on the motor function to the frontal lobe
Cerebellum
Where all of the major lobes meet:
A. Thalamus
B. Fourth vesicle
C. Pituitary
D. Insular cortex
D. Insular cortex
Best description of CNS:
Connection of glial cells are Schmidt Lanterman incisure
Separates supratentorial and infratentorial
Tentorium cerebelli
Thalamus is derived from
Diencephalon
Located in the white matter
A. Fibrous astrocyte
B. Oligodendrocyte
C. Microglial cell
D. AOTA
D. AOTA
Masterplan for the formation of brain
Genes
Found in supratentorial area
Parietal lobe
Area where upper and lower neurons meet
Anterior horn
Characteristic of dendrites rather than axon
Contains Nissl bodies in cytoplasm
Secretes CSF
Ependymal cells
Function of temporal lobe
A. Motor function
B. Hearing
C. Balance
D. Sensory function
B. Hearing
Patient with Schwannoma; how many cervical nerves
8
Mesencephalon structures
A. Tectum B. Tegmentum C. Cerebral aqueduct D. Cerebral peduncle E. AOTA
E. AOTA
Not expected in sample
Macroglial
The anterior neuropore closes
Day 25
Brainstem is derived from
Mesencephalon and rhomboencephalon
Most important period for the development of CNS
1st month
Function of glial cells
A. Regeneration of brain
B. Secretes CSF
C. Provides nutrition
D. AOTA
D. AOTA
Not part of the PNS
Spinal cord
Produces CSF
Choroid plexus
Structure that secretes CSF
Arachnoid villi
True about neuron
At resting state, it is electronegative at -80 mv
Most common neurotransmitter of neuromuscular junction
Acetylcholine
Unipolar
Posterior root ganglion
Lines ventricles and central canal
Ependyma
Layer closest to brain and follows contour of brain and spinal cord
Pia mater
Divides the cerebrum into left and right hemisphere
Falx cerebri
What organelle contributes to the production of DOPA
Melanin
Coronal structure
Fronta
What foramen is seen in the mandible
Mental foramen
Where does mandibular nerve traverses
Foramen ovale
Where does maxillary nerve traverses
Foramen rotundum
Which does not pass through the jugular foramen
Hypoglossal nerve
Best describes plasma membrane
Coated with glycocalyx
What bone does the mastoid process originate
Temporal
It is a compact protein containing sex chromosome
Barr body
Bone that belongs to anterior cranial fossa
Ehtmoid bone
True about lysosomes
Acts as a cytoplasmic scavenger
Converts chemical energy
Mitochondria
True about plasma membrane in axons
Ribosomes connect with rough ER
True of neuroglia
Non-excitable cell that supports the neuron
Not true of neuronal nucleus
Small and triangular shaped
What does sella turcica houses
Hypothalamus
