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TX HEB ISD 9th Grade Science Set 2
Texas HEB ISD 9th Grade Science, Second Set
43
Science
9th Grade
02/24/2019

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Cards

Term
Digestion
Definition
Converts food into small molecules that can be used by the cells of the body
Term
Ingestion
Definition
Act of putting food into your mouth
Term
Absorption
Definition
Process of transferring water and nutrients from food in the large intestine
Term
Elimination
Definition
Process of feces passing through the rectum and is eliminated from the body through the anus
Term
Salivary Amylase
Definition
Breaks down starches into disaccharides in the mouth
Term
Pepsin
Definition
Breaks down proteins into large peptides in the stomach
Term
Pancreatic Amylase
Definition
Continues the breakdown of starches in the small intestine
Term
Lipase
Definition
Breaks down fats in the small intestine
Term
Forty Hours
Definition
The amount of time for all undigested matter to be eliminated from the body
Term
Respiration
Definition
Process of picking up oxygen from the air we inhale and release carbon dioxide as we exhale
Term
Trachea
Definition
Long tube that air follows to get to your lungs from your mouth
Term
Epiglottis
Definition
Covers the trachea so we don't choke on our food
Term
Larynx
Definition
Another name for the vocal chords
Term
Bronchi
Definition
The trachea splits into these which lead to the lungs and bronchioles
Term
Alveoli
Definition
Tiny air sacs in the lungs
Term
Capillaries
Definition
Places where the lungs exchange air into the circulatory system
Term
Villi
Definition
Fingerlike projections in the intestines that absorb nutrients into the blood
Term
Gas Exchange
Definition
Process where oxygen diffuses from the air in the alveoli into the blood, and carbon dioxide diffuses from the blood back into the alveoli
Term
Medulla Oblongata
Definition
Area in the brain that controls the regulation of oxygen levels and signals muscles to increase or decrease breathing
Term
Circulation
Definition
Process for transporting nutrients, oxygen, carbon dioxide, hormones, and blood cells to and from the body
Term
Aorta
Definition
Largest main artery of the circulatory system
Term
Vena Cava
Definition
Blood vessels that carry blood from the upper and lower parts of the body
Term
Septum
Definition
Separates the left and right sides of the heart
Term
Pulmonary Arteries and Veins
Definition
Blood vessels that carry blood to and from the lungs
Term
Chambers of the Heart
Definition
Left and right atrium and left and right ventricle
Term
Valves
Definition
Structures that keep the blood from flowing backwards in the heart
Term
Nervous System
Definition
Process that collects information about the internal and external environment, process that information, and respond to it
Term
Central Nervous System
Definition
Brain and spinal cord
Term
Peripheral Nervous System
Definition
Network of nerves that extend throughout the body
Term
Neurons
Definition
Conduct impulses in the nervous system
Term
Gilial Cells
Definition
Protect and support impulse transportation
Term
Dendrites
Definition
Receive impulses from other neurons
Term
Axon
Definition
Carries impulses away from the neuron
Term
Meninges
Definition
Membranes in the brain that protect it
Term
Brain Stem
Definition
Connects the spinal cord to the brain and conducts many survival functions
Term
Cerebellum
Definition
Coordinates muscle activities, balance, and posture
Term
Cerebrum
Definition
All other voluntary and conscious activities, sensations, and emotions
Term
Excretory System
Definition
Eliminates waste
Term
Kidneys
Definition
Excrete wastes, water, salt, and acid from the blood
Term
Homeostasis
Definition
Process of maintaining a relatively constant internal environment despite changes in the external environment
Term
Mouth
Definition
Begins mechanical digestion
Term
Urethra
Definition
Excretes urine from the body
Term
White Blood Cells
Definition
Protect the body by engulfing foreign cells and producing antibodies
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