FINAL CHAPTER TEST Flashcards
Explain the significance of oxygen
oxygen makes ATP energy through cellular respiration
significance of CO2
body disposes CO2
process of respiration
breathe O2 in-transfer to RBC-RBC carry body cells- RBC drops ofF o2
blood picks up CO2 from body cells- blood carries CO2 back to lungs- breathe out CO2
2 functions of the respiratory system
provide body with O2
dispose of CO2
List the structures that air passes through in the respiratory system, in order
nose/mouth, nasal cavity, pharynx, larynx, trachea, bronchial tree, alveoli in lungs
filters, warms, and moistens air
upper respiratory system
upper respiratory structures
nose, nasal cavity, pharynx, larynx
move air to gas exchange surface and gas exchange
lower respiratory system
structures in lower respiratory system
trachea, bronchial tree, lungs
scientific name for windpipe
trachea
scientific name for voice box
larynx
scientific name for throat
pharynx
flap of cartilage which covers airway when swallowing
epiglottis
why does trachea have rings
to hold it open
thin walled round chamber that is surrounded by many capillaries for gas exchange in and out
alveoli
provides huge surface area for gas exchange
alveoli
2 respiratory muscles
intercostal muscles and diaphragm
muscles between ribs
intercostal muscle
muscle under lungs
diaphragm
viral- many different viruses can cause; no antibiotics
common cold
viral-no antibiotics; no severe than colds
flu
fluid accumulates in alveoli and bronchioles swell
pneumonia
bacterial infection- antibiotic treatment; can cause rheumatic fever or kidney problems
strep throat
thick, sticky mucus- clogs air passageways and traps bacteria
cystic fibrosis
inflammation of mucous membranes of bronchi- excess mucus
bronchitis
walls of alveoli break down and eventually thicken- decrease surface area for gas exchange
emphysema
commonly caused by smoking
emphysema
progressively worsening case of a combination of chronic bronchitis and emphysema
COPD
caused by smoking- inhaling carcinogens- mutates cells to cancer
lung cancer
What type of microorganism causes the common cold and the flu
viral
Explain why it is inappropriate to take an antibiotic for the common cold or flu
only for bacterial infections
Explain why it is important to treat strep throat.
cause rheumatic fever or kidney problems
How does someone acquire cystic fibrosis
inherited disease
What 3 respiratory disorders listed are most commonly caused by smoking
COPD, lung cancer, emphysema
List the organs that compose the gastrointestinal tract, in order
mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anus
List the 4 digestive accessory organs
salivary glands, pancreas, liver, gall bladder
List the 3 functions of the mouth
mechanical and chemical digestion
monitors food quality
moistens and manipulates food so it can be swallowed
how many teeth do humans have
32
mechanical breakdown of food
teeth
how many salivary glands do we have
3 pairs
moistens and binds food
saliva
What begins digestion by the saliva?
enzymes- sugar starches
4 functions of the tongue
taste
speech
manipulation of food and mix with saliva
begins swallowing
what is the tongue made of
muscle
store food and regulate release of food to small intestine
liquefy food
carry out initial digestion of proteins via enzymes
stomach
ph of stomach
7.4
Name two substances that can be absorbed through the stomach
alcohol and aspirin
functions: chemical digestion and absorption
small intestine
List the 3 major macromolecules that we chemically digest
carbohydrates, proteins, and fat
7 substances that the stomach absorbs
monosaccharides, amino acids, fatty acids, water, ions, vitamins, and minerals
Identify the primary site/organ of absorption of nutrients in the body
small intestine
largest region of large intestine
colon
absorbs h2o and ions
stores, forms, and expels feces
large intestine
undigested food, cells, water, mucus, and millions of bacteria
feces
secretes enzymes to digest most nutrients
function of pancreas
Describe the location where the pancreatic enzymes are released
into the first part of small intestine