Neurology Flashcards
What are the 4 restriction points of the esophagus in order
Cricopharyngeus M.
Aortic Arch
L. Bronchus
Esophageal Hiatus
Where does the phrenic N. Lie in the mediastinum
Between the mediastinal parietal pleura and the fibrous pericardium
What does the phrenic N. Innervate
Sensory information from central diaphragm and mediastinal pleura and pericardium
The intercostal N. Are what specifically
Anterior Rami
What do collateral branches of intercostal N. Innervate
Intercostal M. Along with intercostal N.
What does Lateral cutaneous Branches innervate
Skin of thoracic wall, T4-6 supply breast
What do ANterior cutaneous branches innervate
Anterior aspect of thoracic wall
What doe muscular branches innervate
Intercostal M.’s
What does the intercostal brachial N. Supply
SubQ tissue of the axilla and skin
Presynaptic fibers that enter the paravertebral ganglia and exit without synapsing travel in what
A splanchnic N.
Define the thoracic sympathetic trunk
Paravertebral sympathetic ganglia with presynaptic sympathetic N. Fibers synapsing onto long postsynaptic N. Cell Bodies
What N. Sends superficial fibers to the deep cardiac plexus
Cardiac splanchnic N.
What N. Sends fibers to the pulmonary plexus
The pulmonary splanchnic N.
What does the greater splanchnic N. Do
Sends fibers to the esophageal plexus and the celiac ganglion in the abdomen
What does the lesser splanchnic N. Send fibers too
The superior mesenteric plexus
Define the pulmonary plexus
Signals and their input
Sympathetic - pulmonary splanchnic N.
Parasympathetic - pulmonary branches of vagus N.
Innervates the lungs, bronchi, and pleura
What N. Takes signals from chemoreceptors in pulmonary V. To SC
Parasympathetic branch of pulmonary plexus
Define cardiac plexus
Input and location of signals
Sympathetic - cardiac splanchnic N.
Parasympathetic - superior, middle, and inferior cardiac branches of the Vagus N.
What is the location of the superficial cardiac plexus
The anterior surface of the aorta
What is the location fo the deep cardiac plexus
Anterior to the bifurcation of the trachea and posterior to the aortic arch
Define the aortic plexus
Innervation and location
Sympathetic and parasympathetic continue with superficial cardiac plexus in the abdomen and feeds into the intermesenteric plexus
Define the eophageal plexus
Input and location
Sympathetic and paraysmpathetic to esophagus
