We Be-lung Together
- hollow space behind the nose
- warms & moistens inhaled air
What is nasal cavity?
What is brainstem control of respiration?
Flattens during inspiration & increases top to bottom length of thorax
What is the diaphragm?
normal breathing
What is eupnea?
the only organ that can float on water
what is lungs?
- made up of several pieces of cartilage
- where vocal cords are located
- voice production
- passageway for air to move to and from lungs
voluntary control of respirations
What is cerebral cortex of respiration?
contraction elevates ribs and increase size of thorax from front to back and side to side
What is external intercostals?
slow and shallow respirations
What is hypo ventilation?
true or false
if lungs were unfolded and expanded out to their fullest size, they would roughly be the size of a ping pong table
what is false?
- includes nasopharynx, oropharynx, laryngopharynx
- passageway for food, liquids, & air
What is pharynx?
permits the body to adjust to varying demands for oxygen supply & carbon dioxide removal
What is homeostasis of blood gases?
contraction depresses ribcage and decreases the size of thorax from front to back
What is internal intercostals?
labored or difficult respirations
What is dyspnea?
true or false
a person who lives to 80 will breath over 600 000 000 breaths in their lifetime
What is true?
- tube that extends from larynx into thoracic cavity
- c-shaped rings of cartilage
- passageway for air to move to and from lungs
What is trachea?
- chemoreceptors respond to changes in carbon dioxide, oxygen & blood acid levels
- responds to stretch in lungs
What is respiratory reflexes?
elevates diaphragm, decreasing size of thoracic cavity from top to bottom
What is abdominal muscles?
temporary cessation of breathing
What is apnea?
this gas makes up 21% of the air we breath
- branches into smaller and smaller tubes
- ends in clusters of alveoli
- passageway for air to move to and from alveoli
What is bronchial tree?
TV, VC, RV
What is tidal volume, vital capacity, & residual volume?
external respiration vs internal respiration
external: pulmonary ventilation and pulmonary gas exchange
internal: systemic gas exchange and cellular respiration
failure to resume breathing after a period of apnea
What is respiratory arrest?
these two parts were important symbols in ancient Egypt
What are Lungs & trachea?