anatomy and physiology of respiration Flashcards
nose
air enters from the nostrils (nares) passes through nasal cavity
nasal cavities
lined with mucous membrane and tiny hairs (cilia); filters out foreign materials
paranasal sinuses
hallow air-containing spaces; communicate with nasial cavity
pharynx (throat)
includes the nasopharynx, oropharynx, and laryngopharynx
nasopharynx
contains the adenoids or (pharyngeal tonsils)
oropharynx
contains the palatine tonsils; they re 2 round masses of lymphatic tissue
laryngopharynx
passage way that divides into the larynx (voice box) and esophagus
esophagus
leads to the stomach and carries food to be digested
larynx (voice box)
contains vocal cords and used for breathing, swallowing and talking
thyroid cartilage
Adams apple
epiglottis
the lid the covers larynx to prevent chocking, and food going down the wrong pipe
glottis
slit like opening to larynx
trachea (windpipe)
windpipe that connects larynx to lungs; stays stiffened by C-shaped rings of cartilage
mediastinum (mee-dee-uh-stai-nuhm)
region between the lungs in chest; divides into 2 parts left and right bronchial tubes
bronchi (singular: bronchus)
branch of trachea (windpipe) that is a passageway into the lungs; bronchial tube
bronchioles
smallest branch of the bronchi
terminal bronchiole
narrows into alveolar duct
alveoli (singular: alveolus)
air sacs located in the lungs
capillary
allows an exchange of gases to happen
erythrocytes
carries oxygenated blood away from lungs and to body parts; and carries deoxygenated blood back to lungs
pleura
double-layered membrane surrounding each lung
parietal pleura
outer layer of the double-layered membrane
visceral pleura
inner layer closes to the lungs
right lung
slightly larger divided into 3 lobes