includes vocabulary for 7th grade science final exam
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Adrenal Gland | Produces ADRENALINE in response to physical or emotional stress (fight or flight)
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| Heart | Major organ of cardiovascular system
-cardiac muscle allows it to pump
-cardiac muscle is skeletal and doesn't tire easily
-four sections: Right and left atrium, and right and left ventricle
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| Stomach | Food undergoes mechanical digestion when stomach muscles churn the food
-chemical digestion occurs when HCI and pepin break down proteins
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| Kidneys | Filter blood that has collected wastes from cells
-Nephrons: filters in the kidneys
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| Urinary Bladder | Muscular organ that holds urine
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| Ureters | tubes that lead from each kidney to the bladder
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| Esophagus | Smooth muscles force food into the mucus-lined esophagus
-peristalsis moves food downward
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| Small intestine | Most digestion occurs here because the small intestine is six meters long
Intestinal juices break down food
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| Large intestine | undigested food spends about 18 to 24 hours here, and most of the water is absorbed
Materials that are not absorbed then become solid waste
1.5 meters long
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| Urethra | Tube that carries urine from the bladder out of the body
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| Brain | the central organ of the nervous system which is protected by the skull. Coordinates actions
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| Joint | Any place where two or more bones meet
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| Ligament | Tough bans of tissue that hold bones together at the joint
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| Diaphragm | a muscular area that helps the lungs expand and contract
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| Voluntary Muscle | Can be controlled
All striated muscles except cardiac muscles are voluntary
Skeletal Muscle
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| Sensory neuron | Picks up a stimulus and turns it into a nerve impulse
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| Recessive trait | A trait that can be carried in a person's genes without appearing in that person
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| Phenotype | A trait's observable characteristics
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| heredity | The passing of characteristics from parents to children
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| Involuntary Muscle | Unable to control these
cardiac and smooth
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| genotype | the way a trait is expressed in letters
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| dominant trait | an observable trait
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| Pancreas | produces pancreatic juices that are released into the small intestine to break down proteins, starches, and fats
Produces insulin which controls sugar levels in the blood
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| Parathyroid | produces parathormone which controls calcium levels
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| Pituitary gland | "Boss Gland"
Produces a growth hormone which controls growth and homeostasis
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| Thyroid | Produces thyroxin to regulate metabolism
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| Testes | Produces testosterone used in sperm production and the development of male traits
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| Ovaries | produce estrogen used in egg production and the development of female traits
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