Anatomy Flashcards
What does adduction of the vocal cords do and what nerve does this?
closes the rima glottidis
vagus nerve
What nerves supply the intercostal muscles?
Intercostal nerves
What nerve controls contraction of the anterolateral abdominal wall muscles?
intercostal nerves
What nerve tenses the soft pallate?
CN V - trigeminal
What nerve elevate the soft pallate?
vagus nerve
When sneezing what sensory receptor nerves are stimulated?
CN V or CN IX (trigeminal or glossopharyngeal)
What sensory receptor nerves are stimulated in coughing?
CN IX or CN X (glossopharyngeal or vagus)
What does the vagus nerve descend down to the mediastinum in?
Carotid sheath
What 4 things does the right carotid sheath obtain?
the vagus nerve
the right internal carotid artery
the right common carotid artery
the right internal jugular vein
Where is the pulmonary plexus and what 3 things make it up?
At the bifurcation of the trachea
sympathetic axons, parasympathetic axons, visceral afferents
What nerve sensory receptors are present in the mucosa of the oropharynx?
CN IX
What nerve sensory receptors are present in the mucosa of the laryngopharynx?
CN X
What nerve sensory receptors are present in the mucosa of the larynx?
CN X
What are present in the sensory receptors of the mucosa in the respiratory tree?
Visceral afferents
What is the phrenic nerve composed of?
The combined anterior rami of cervical spinal nerves 3,4 and 5
Where in the neck can the phrenic nerve be found?
On the anterior surface of the scalenus anterior
Where in the chest can the phrenic nerve be found?
Descending over the lateral aspect of the fibrous pericardium anterior to the lung root
What 4 areas does the phrenic nerve supply somatic sensory and sympathetic axons to?
The fibrous pericardium
The mediastinal parietal pleura
The diaphragmatic parietal pleura
Th diaphragmatic parietal peritoneum
What does the phrenic nerves somatic motor axons supply?
The diaphragm
What are the intercostal nerves?
The anterior rami of spinal nerves T1 - T11
What 3 muscles are the accessory muscles of inspiration?
Pectoralis major
Pectoralis minor
Sternocleidomastoid
Scalenous anterior, medius and posterior
What are the muscle attachments of the pectoralis major?
sternum/ribs and the humerus
What are the muscle attachments of the pectoralis minor?
ribs 3,4 and 5 (3-5)
the coracoid process of the scapula
What are the attachments of the sternocleidomastoid muscle?
sternum/clavicle and mastoid process of the temporal bone