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homeostasis
the maintnence of a constant internal enviroment in a changing external enviroment
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tissue
groups of simaler cells that work togethor
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organ
two or more tissues that work togethor
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model
a representation of a system or object
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pernicious
harmfull or destructive
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joint
the point at which two or bones meet to allow your body to move when muscles contract
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avarice
a greedy desire for wealth
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munificent
extraordinarily genorous
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ligament
connective tissue that connects bone to bone
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tendon
connective tissue that connects muscle to bone
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epidermis
the outermost layer of skin
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dermis
thick layer of skin that lies below the epidermis
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impugn
to attack as false
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allay
to lessen fear; to calm
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saliva
a secretion of water,protein, and salts in the mouth that begin food breakdown
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esophagus
tube-like structure that connects the throat to the stomach and pushes food downward
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epiglottis
peice of flexible cartiledge that covers your wind pipe when swallowing
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stomach
attached to lower-end esophogus; produces acids, enzymes, and contractions to breakdown food
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pancreas
organ between small intestine and stomach; secretes digestive enzymes and the hormones insulin and glucagon
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liver
largest organ within the body; produces bile to break up fat, breaks down toxins, and stores nutrients
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small intestine
aids in food breakdown after leaving the stomach; 6-7 meaters long
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large intestine
aborbs water form undigested food; forms a semo-solid material that passes through the rectum and anus
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accolade
an award given as a sign of respect
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kidneys
pair of organs near the mid-spinal column that filter waste and water from blood and excrete waste form urine
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altruisic
showing an unselfish concern for others
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narcissistic
extreme love of oneself with disregard for others
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nephrons
filters within the kidneys
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opulent
having great wealth; extravagent
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artery
vessel that carries blood away from the heart; contans smooth muscle
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vein
vessel that carries blood to the heart
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capillary
small, thin-walled blood vessel that allows the exchange of nutrients, oxygen, and wastes between blood and cells
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itenerant
tending to move around frequently
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prudent
wise and cautious
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atruim
upper chamber of the heart, recieves blood from veins
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ventricle
lower chamber of the heart that recieves blood form veins and forces it into ateries
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diastolic pressure
pressure in the arteries when the ventricles relax
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systolic pressure
bloodk pressure in the arteries when ventricles contract
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blood
connective tissue; contains red/white cells, plasma, and platelets
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plasma
fluid component of blood; contains minerals, sugar, protein, and water
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platelets
peices of larger cells in marrow that are in plasma; react with protein to assit in blood coagulation
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hemoglobin
oxyegen-carrying protein in RBC's; give RBC"s their color
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pathogens
viruses, bacteria, etc. that act as agents of disease
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antibodies
chemicals that identify and destroy pathogens
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racontuer
one who tells stories with skill and wit
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loquacious
extremly talkative
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lymph
fluid and small particles absorbed into the lymph capillaries
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lymph nodes
small masses of tissue that remove pathogens and dead cells from lymph. located in armpits, neck, and groin
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banter
good-humored teasing or conversation
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thymus
located behind the breastbone, develops killer-t cells that fight infection
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spleen
the largest lymph organ. it contains a white pulp to fight infection and a red pulp to remove dead and unwanted materials
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wrest
to pull away from by violently twisting
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tonsils
lymphatic tissue that traps pathogens entering the mouth. located at the back of the throat on either side of the tounge and in the nasal cavity
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respiration
the process by which an organism gets and uses oxyegen and releases water ans carbon dioxide
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phayrnx
the passage from the mouth to the layrnx and the throat. branches into the esophogus and the layrnx
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zealous
filled with enthusiasm
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larynx
leads to the lungs and contains vocal chords; at the entrance of the trachea
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