Science test Flashcards
The _____ are the main organs of the respiratory system
lungs
Membranes that line the nose secrete a thick sticky substance called ______
mucas
The _______ leads down ward to the esophagus and the larynx.
Pharynx
at the back of the mouth and nose is the part of the throat called the
pharynx
The _______ is an elastic tube that is located posterior to (behind) the larynx.
esophagus
The ______ is a boxlike structure composed of several ieces of cartilage.
Larynx
The _____ keeps food from going up into the nasal cavity when you swallow
uvula
The space between these folds is called the
glottis
The ______ is an open tube made of a series of cartilage rings.
trachea
The trachea branches to form two similar but smaller air passages called the
bronchi
The air passing through the bronchiles finally enters microscopic sacs called
alveoli
The _______ is a domeshaped muscle that attaches to teh lower rubs the backbone and the sternum.
diaphragm
______ is an enfection that causes the alveoli to become inflamed and fill with fluid
pneumonia
________ is a bacterial infection that results in clumps of damaged lung tissue
tuberculosis
________ is a lung disease that is often associated with smoking
emphysema
_______________ ____ a lun collapses when the alveoli lose most of their air
collapsed lung
The bodys process of taking food apart is
digestion
The process of building living tussues from the digested foods is
assimilation
_________ ________ involves chemically breaking down the food into soluble substances that the body can use
mechanical digestion
________ ______ ivolves chemically breaking down the food into soluble substances that the body can use…..
chemical digestion
The ________ ____ runs from the mouth to the anus
alimentary canal
_______ us a type of muscular contraction
peristalisis
The ________ are the eight teeth in the front of the mouth.
incisors
the next tooth toward the back of the mout is the ______
canines
around the mouth are three pair of _________ ______ these glands produce slaiva
salivary glands
the mixture of food enzymbes and acid becomes a semiliquid called
chyme
the stomach gently squirts small amounts of chume through a valve and into the
small intestine
The inner suface of teh small intesiten has many folds lined with microscopic fingerlike structures called
villi
At the end of the small intestine the remaining undigested foods and fluids enter the
large intesitne
the _____ performs more than 500 functions including bile
liver
The _____ produces several enzymes used in the digestion of proteins
pancreas
Most of the _________ we eat are sugars or starches
carbohydrates q
these are made up of amino acids
proteins
____ are the fats and oils in foods.
lipids
The ______ ___ _________ of carbohydrates begins in the mouth.
digestion of carbohydrates
The _________ __ ______ starts in the stomach
digestion of proteins
_________________ __ ______ of lipids starts in the small intestine
digestion of lipids
trachea
alveoli
bronchi
trachea alveoli bronchi