Cardiovascular/Respiratory Flashcards
How would the diaphragm change to inhale?
It would flatten and lower
How would the rib cage change to inhale?
The ribs would become further apart
What is the main function of cilia in the respiratory system?
Prevent dust from entering the lungs
In which structure is gas from the atmosphere exchanged with gas from the bloodstream?
Alveoli
A patient is complaining of shortness of breath. A doctor takes a biopsy of the patients lungs tissue and sees that the alveoli are breaking down. Which of the following diagnoses is the most reasonable?
Emphysema
Air enters the respiratory system through the ________
Nostrils
The __________ are covered in a mucous membrane that heats and moistens the air
Nasal sinuses
The _______ connects the nasal cavity with the larynx
Pharynx
The epiglottis stands upright when a person is not swallowing, allowing air to enter the
Larynx
Within the wall of the _______ are cartilaginous rings that prevent the blockage of the airway
Trachea
The bronchial tree consists of branched airways that connect the trachea with the
Alveoli
Connects brainstem to the body. Decreases heart rate
Vagus nerve
Increases heart rate
Accelerator
Initiates the cardiac cycle and is the “pace maker” of the heart
S/A node
Receives signal from S/A node and relays to atria and ventricles
A/V node
What makes the lub sound
A/V valves closing and ventricles contracting
What makes the dub sound
Pulmonary and aortic valves closing
Symptoms of hypotension
Dizziness, blurred vision, nausea, fatigue