Sympathetic Nervous system has cranial and sacral parts
Parasympathetic nervous system has long preganglonic and short postganglionic fibers
Hippocampus is a three-layered allocortex
Adrenal medulla cells are derived from modified postganglionic sympathetic neurons
Amygdaloid body is concerned with emotion control
Both preganglionic and postganglionic fibers of the sympathetic nervous system are myelinated
The pupil is small if the stellate ganglion is removed from the neck of the first rib
The rami communicated are associated only with the sympathetic division of the ANS
The adrenal medulla is considered a "misplaced" sympathetic ganglion by some
Which of the following is true in respect to the ciliary ganglion?
Sympathetic fibers synapse int he ciliary ganglion
Afferent fibers from the iris and cornea pass through the ganglion
The ganglion is located between the optic nerve and medial rectus
Parasympathetic fibers in the ganglion are derived from CN VII
Parasympathetic fibers in the ganglion are distributed to the retina and lens
Which of the nerves below provides parasympathetic supply of glandula parotidea
n petrosus profundus
n. glossopharyngeus
n. trigeminus
n. facialis
n. vagus
The sacral outflow of the parasympathetic (craniosacral) system enters the pelvic plexus via:
hypogastric nerves
pelvic splanchnic
pudendal nerves
sacral splanchnic nerves
Preganglionic parasympathetic nerve fibers within the pelvic( inferior hypogastric ) plexus arise from S@, 3,4 and enter the plexus via
gray rami communicantes
pelvic splanchnic nerves
white rami communicates
Choose the statement that does not accurately reflect the differences between the somatic and autonomic motor systems
Somatic nerve fibers are fast-conducting; autonomic fibers are slow- conducting
Somatic leads to heart muscles; autonomic leads to skeletal muscle
Somatic impulses are excitatory only; autonomic impulses are excitatory or inhibitory
Somatic receptors have a specialised have a specialised motor end plate; autonomic receptors do not
Which is the true statement regarding the sympathetic nervous system?
Both preganglionic and postganglionic fibers are myelinted
Preganglionic neurons exit the spinal cord in the cervical and sacral regions
Adrenal medulla cells are derived from modifies postganglionic sympathetic neurons
The sympathetic nervous system is rarely activated as a unit
Regarding the parasympathetic division of the autonomic nervous system
parasympathetic preganglionic fibers are found in all cranial nerves
parasympathetic vasoconstrictor fibers are present int he salivary glands
parasympathetic postganglionic neurons are found in spinal ganglia from T1 to L2
parasympathetic postganglionic fibers secrete acetylcholine onto their target organs
Regarding the role of the sympathetic nerves to the eyes causes pupillary constriction
stimulation of the sympathetic nerves to the eyes causes pupillary constriction
activation of the sympathetic system causes vasodilation in the skin
activation of the sympathetic system causes vasoconstriction in the viscera and vasodilation in skeletal muscle
stimulation of the vagus nerves speed up the heart
The rami communications are designated white or gray depending on whether they are
from the sympathetic or parasympathetic system
in the thoracic or lumbar region
myelinated or not
from the white/ gray matter of the Central Nervous System
Parasympathetic nerves in the thorax
cause contraction of the muscle in the lung
supply sensory fibers to the lung
are secremotor to the oesophagus
cause the longitudinal muscle of the oesophagus to relax
supply sensory fibers to the pericardium
Which of the cranial nerves nuclei listed below are visceromotor (parasympathetic)
nucelus dorsalis nervi vagus
n. salivatorius caudalis
n. ambiguous
n. nervi facialis
n. solitarius
Postganglionic sympathetic neurons
release neurotransmitter acetylcholine
have non-myelinated axons
send short fibers to the target organs
have slow- conducting fibers
supply skeletal muscles
Regarding the sympathetic division fo the autonomic nervous system
acetylcholine is secreted by some sympathetic postganglionic fibers
most sympathetic preganglionic fibers secrete norepinephrine (noradrenaline)
sympathetic postganglionic neurons are found in spinal segments from T1 to L2
the sympathetic chain extends from the thoracic to the sacral regions of the spinal cord
sympathetic preganglionic neurons are foound in spinal lateral horns
Regrading the parasympathetic division of the autonomic nervous system
parasympathetic preganglionic neurons are found in sacral segments
parasympathetic ganglia are close to the organ
The pelvis splanchnic nerves primarily carry to the plexuses
The pathway of parasympathetic fibers to the lacrimal gland is as follows: CN VII- A : nerve of the pterygoid canal B- : zygomatic branch of V2 - C-
Parasympathetic and taste fibers fromt he horda tympani reach their destinations via
The ciliary muscle is supplied by the
The parasympathetic division uses fibers on the nerve to reach the heart, lungs, gastrointestinal tract, liver and pancreas
Preganglionic parasympathetic neurons of the glossopharygeal nerve synaps in the , which sends out postganglionic neurons to innervate the parotid gland
The "fight" or "flight" response is due primarily to the activation of nerves
Stimulating the vagus nerve will heart rate via increasing the effect of tone
