Pheripheral Autonomic System Flashcards
..?.. Forms the idiopathic part of the peripheral nervous system
Autonomic(visceral or vegetative) nervous system.
The autonomic nervous system VI’s linked to the central me vous system by….
Cranial and
Spinal nerves
……….. Consists of multitude if small nerves plexus and ganglia that coordinates the function of this internal organs essential for life.
Autonomic nervous systems.
The autonomic nervous system regulates processes such as?
Respiration, cir ulqtion, digestion, metabolism, body temperature, water balance, reproduction and many other functi ons.
The autonomic nervous system is regulated by ?
Cerebrospinal mechanisms
The afferent component of the ANS can be divided into
Sympathetic and parasympathetic
The Sympathetic and Parasympathetic portions of the ANS canconsist of neurons that link the CNS to the innervated structures. True of false
True
The first multipolar neuron(myelinated, preganglionic neuron) of each pair has it’s cell body within the CNS and sends it’s axon out as part of the peripheral system. True / False
True
The first multipolar neuron (Myelinated, pr eganglionic neuron) synapse with the second neuron of the chain(non myelinatefd axon of the postganglionic neuron) which terminates on the……..
cells of the effector organ.
The cell bodies of the preganglionic neurons of the sympathetic division are located within The……….
Lateral column of the thoracic and lumbar spinal cord.
The cell bodies of the preganglionic neurons of the parasympathetic nerve are located …….
In the nuclei of origin of certain cranial nerves within the brain stem and the lateral columns of the sacral segments of the spinal cord
The sympathetic trunk run through the spinal cord and suppppies the
Heart, liver, reproductive system and goes cranially to relate with the cranial nerves.
True/ False the autonomic nervous system is under the Cerebrospinal Control.
TrTrueue.
The post ganglionic neurons ordinarily occurs in clusters referred to as
Ganglia
The sympathetic postganglionic neuron are located in ……………. While that of parasympathetic post ganglionic neurons are located ……..
a) vertebrae ganglia of the sympathetic trunk or in more peripheral prevertebra ganglia.
B)small ganglia close to or within the walls of the organ they innervate.
-The transmitter at the last sympathetic synapse is………, while that of the parasympathetic portion is……….
A) nor adrenaline
B) acetylcholine
…….. Stimulation results in an overall increase in body activity, while ………..stimulation has a sparing effect
) sympathetic
An) Parasympathetic.
The preganglionic origin for the sympathetic and parasympathetic divisions of ANS are?
A) thoracolumbar spinal cord(T1-L3)
B) Sacral Spinal Cord & brain stem.
The axon of the sympathetic preganglionic neurons join the. entral roots to reach the……….. From which they pass to the ……….. Of the sympathetic trunk as the …………
A) Spinal nerves
B) vertebra ganglia
C) White communicating branches.
Majority preganglionic fibres , after entering the sympathetic trunk passes through… …
Sympathetic trunk to synapse in other prevertebral ganglia located at the origins of the visceral branches of abdominal aorta.
The last group preganglionic fibres after entering the sympathetic trunk constitutes the ……..
Splanchnic nerves
The sympathetic trunk consists of three chains of vertebral ganglia. True or falsd
False. It contains two
The sympathetic trunk can be divided into several parts which are…..
#Cephalic and cervical parts #Thoracic parts #Abdominal parts #Sacral and coccygeal part.
The cranial continuation of the thoracic part of the sympathetic trunk(without directly contacting the vertebra columns of is the ……………..
Cephalic and cervical part.
…….. Forms the vagosympathetic trunk
The cervical region of the sympathetic trunk and the vagus. Nerve
The cervical part starts ate the……….
Cervicothoracic ganglion.
At the …… The sympathetic trunk and vagus nerve separate and then the former terminates in the
Atlas
Large, cranial cervical ganglion.
……..provides sympathetic innervation for the head
The cranial cervical ganglion.
In the horse the sympathetic part of the vagosympathetic trunk run along the …………….. in a caudal fold in the medial compartment of the…………
A)Internal Carotid artery
B) guttural pouch
True or false. Only post ganglionic fibres leave the cranial cervical ganglion
True
Post ganglionic fibres from the cranial cervical ganglion join the ..….. …. …. Cranial nerves and extend ing to the adventitia of all cranial nerves.
9th, 10th,11th&12th
………nerve arises from the apex of the cranial cervical ganglion
Internal carotid nerve. It passes through the lacerated foramen with the internal carotid artery.
The cervicothoracic ganglion is all know as…………
Stellate ganglion)
The middle cervical ganglion is connected to the cervicothoracic ganglion by the…….
ansa subclavia. Most of it’s neurons innervate the cardiac plexus.
The cervicohoracic ganglion Li’s medial to the first rib. TRUE/False
True
True or false the thoracic ganglian roughly correspond to the the thoracic nerve
True
……. And ……… Fuse to form the cervicothoracic ganglion
Cranial thoracic ganglia and caudal cervical ganglia.
True or false from the cervico thoracic rise branches to the cardiac, oesophageal and tracheal plexuses.
True
From the 6th thoracic ganglion caudally ,preganglionic neurons pass through the ganglia to reach the …………/////?
Greater splanchnic nerve
The greater splanic nervec increases in diameter more caudally and enters the abdomen along the main sympathetic trunk between the ………..and ………
CRU’s of the diaphragm and the psoas mi nor muscle
The
Lesser splanchnic nerve leaves the mzin sympathetic trunk caudal to the greater splanchnic nerve at the level of the ……….
Last two or three caudal thoracic vertebra.
True/False Both Splanchnic nerves pass with the celiac and the cranial messenteric arteries.
True
The abdominal part of the. sympathetic trunk lies between the …………….& ………….
Psoas musculature and the vertebra bodies
The lumbar splanchnic nerve pass from the ……….. To the ………..
Lumbar ganglia to the celiac and cranial mesenteric ganglia.
A dense plexus around the preventebra l ganglia and the roots of the celiac and cranial mesenteric arteries formed by the autonomic nervous system is called
Solar Plexus
The prevertebra ganglia are connected with each other by the
Splanchnic nerves, the sympathetic trunk and the abdominal aortic plexus at the aorta.
The nervous plexus surrounding the prevertebra ganglia receive parasympathetic fibres from the
Vagus nerve.
The pelvic plexus receives parasympathetic fibres from the
Pelvic nerves
True/False The sacral part of the sympathetic trunk is less consistent btw individuals and may partly fuse with the coccygeal part before extending into tail where it rapidly taper
A) True, I agree.
True/False
The pelvicplexus receives the hypogastric nerves
True.
The cell bodies of the preganglionic neurons of the parasympathetic system are located in the
nuclei of origin of certain cranial nerves in the brainstem and in the sacral spinal cord.
…….is used as a synonym for parasympathetic
“Craniosacral”
The parasympathetic nuclei of the cranial nerves are the: •
Parasympathetic nucleus of the oculomotor nerve, • Parasympathetic nucleus of the facial nerve, • Parasympathetic nucleus of the glossopharyngeal nerve, • Parasympathetic nucleus of the vagus nerve.
-The axons in nerves III, VII and IX are distributed to the …….., whereas the vagus nerve distributes autonomic fibres to the
A) head.
B)cervical, thoracic and abdominal viscera.
What is a neuromuscular synapse?
synapse made between the terminal end of a motor end plate and a skeletal muscle fibre
- This unit of a motor neuron and the muscle fibres it innervates is known as a
Motor Unit
True/ False
Muscle fibres that belong to one motor unit do not make synaptic contact with any other motor neurons.
True
Nerve impulses to skeletal muscle fibres are mediated by a
neuromuscular synapse
….. is made of a group of several terminal branches and skeletal muscle fibres.
Neuromuscular Synapse.
oblong disc‐like structures on skeletal muscle fibres are
Motor end plate
