Lungs Flashcards
What area/structure does the Pulmonary Artery supply?
Left and Right Lungs
Where does the Pulmonary Artery originate from?
Pulmonary Trunk - Right Ventricle
What is a branch/terminal branch of the Pulmonary Artery?
Pulmonary Arterioles
What is the root/origin of the Phrenic nerve?
Ventral nerve roots C3-C5
What is the motor innervation of the Vagus Nerve?
Intrinsic Laryngeal Muscles
- Thyroarytenoid
- Posterior Cricoarytenoid
- Lateral Cricoarytenoid
- Transverse and Oblique Arytenoid Muscles
What is the parasympathetic function of the Vagus nerve?
Decrease heart rate
Increase vasodilation
Bronchial constriction
Increase GI motility and peristalsis
Increase glycogen synthesis in liver
Increase urinary output
What functional deficit would be observed if the Phrenic nerve was lesioned?
Weakening or paralysis of the diaphragm, reducing the ability to breathe.
What are branches that arise from the Vagus Nerve?
Right and Left Recurrent Laryngeal Nerves
Anterior and Posterior Vagal Trunks
What is the sensory innervation of the Phrenic Nerve?
Fibrous Pericardium
Mediastinal Pleura
Diaphragmatic Peritoneum
Where does the Pericardiacophrenic Vein come from?
Pericardium
Thoracic Diaphragm
Where does the Pericardiacophrenic Vein drain into?
Internal Thoracic Vein
What is the sensory innervation of the Vagus Nerve?
Most of the Digestive tract and accessory organs (up until the splenic flexure of the large colon).
What area does the Pericardiacophrenic Vein drain?
Pericardium
Thoracic Diaphragm
What functional deficit would be observed if Vagus Nerve was lesioned?
Increased heart rate
Increased vasoconstriction
Bronchial dilation
Decreased GI motility
Increased conversion of glycogen to glucose in the liver
Decreased urinary output
What is the origin of the Vagus Nerve?
Medulla of the Brainstem
