God is here.inside of me. it’s why my body works like this.
versus stupid drugs: if anyone destroys God's temple, God will destroy that person; for God's temple is sacred, &you together are that temple. (1 cor 3:17)
i don’t know about u, but I found God in science classes. no way this stuff just “happens.”
skeletal SYSTEM// starts to form at 9 weeks in belly
as adult you have “less bones” than when you were a child. b/c 350 fuse together over time to =206
skeleton weighs 18%-20% body weight (30 lbs?)
skeleton is replaced every 2 years
you’re taller in the morning because “pads” (fibrocartilage that function as a cushion/ shock absorbers) between vertebrae are expanded with no pressure on them
1/3 of your bones are tissue &live cells. the rest, ECM. (a bone exists of a osteons/“columns” &this calcium, phosphorus salts, collagen material, &a “spongy” end made for movement). this “tissue”/bone is made of a network of beams with yellow (fat storer) &red (blood formation) marrow filling in the gaps.
b/c women, not men have babies, their pelvic bones are a more rounded arch with the ability to extend more than 90 degrees, so a larger outlet exists for baby.
a baby is soft/ “cartilagey” till 18 months, having just been compressed through a birth canal (ew!)
every part is critical to the skeletal system. examples include:
scapula -irregular bone with flat thin blade; conducive to sharing a border with humerus bone
lumbar -at bottom of spinal cord, u-shaped bone is largest &ideally, strongest. (hey kim).
femur -long “spongy” ended bone, allows for much storage &support
cranial is essentially surrounded by a helmet of bone, being the most protected cavity in the body. the spinal cavity is the next most protected cavity. even when an epidural is given during labor, the doctor has to meticulously place a needle in between vertebrae to get in there.
organs protected by the bony thoracic cage include the heart &the lungs. 3 kinds of ribs: true, ”false” (cartilage), &floating (flexibility). all ribs articulate posteriorly (backside) with vertebrae &most connect anteriorly (front) to the sternum, either directly or indirectly. shape of thoracic cage is cone.
spine is “s-shaped” (&contains discs that slide) for flexibility in the trunk of your body &to absorb shock from running &jumping! “primary” curvatures refer to ones we’re born with. like the lovely lady lumps: thoracic &sacral (bum) regions. secondary ones are curvatures later developed; when baby starts to lift head (cervical) &when she starts to walk (lumbar).
muscular system is made of stripes (striation) that pull on bones/skin when contracted.
25 tons could be held by your body if every muscle was “fit.” (don’t doubt your strength).
“smooth” muscular tissue differs/is slower than cardiac &.. (intestines)
my heart &your blood// electrocardiogram, an ekg tells you exactly what you do to my <3.
p wave (1st): as a result of depolarization, atria contracts. irregular/absent waves =prob.
qrs complex (2nd/big roller coaster): contraction of vesicles, at much greater force. very deep/wide Q waves indicates heart attack. alert alert!
t wave: less “action;” ventricular muscles are relaxing &building up electrical potential for next contraction. abnormalities here may indicate calcium/potassium disturbances.
an intrinsic conduction system has an “av node” delayed for a fraction of a second to allow atria to empty &ventricles to fill before the ventricles contract again.
keratin is the waterproof protein found in skin cells
summer babies,cuidado. exposure to uv radiation makes a weaker defense (immune) system, causes wrinkles//premature aging. a breakdown of collagen/elastin fibers leads to skin cancer.
different levels of melatonin &what that looks like.. freckles are sporadic concentration of melanin. while darker skin color/Cuban -more melanocytes, melatonin producing cells
10 minutes of daily exposure to sunlight will give us the vitamin d we need for a day.
ubv radiation changes “ergosterol” in skin into vitamin d! (strengthens bones/muscles/I.S)
too much exposure can change a person’s dna! unlike plants, who only get energy from this one source, humans get energy from food &sleep. sun could add “too much energy.” spf 30 means it would take 30x more than normal amount of solar energy to burn.
the hype is never something to believe in. but, that “human physiology” course all seniors in high school had to take with mr. keaney turned out to be everything i had made up in my mind. as if intentional, (right before the college years) the course would function as a “dare to be drug free” p.s.a. as well. minus talk on dopamine, the teacher would make the course (PER USUAL). he was the boys soccer coach &infamous for catching kids in the hallways after the bell had already rung. &despite a British accent, his spunk was contagious. he’d lean against this skeleton on wheels, like it was a pal of his. he loved this stuff! &now i would too.
to all great teachers, thank you for influence. (ending my academic career soon..)
can we talk about your brain? so intricate &delicate, it must be Handmade..
when everything has a function; once distorted, the system is bound to fail.
how communication in the brain normally functions: via electric signals &chemical messages. when potential is actioned, an impulse gets carried down axon (protected by myelin sheath which ensures transmission of impulse) of the presynaptic neuron toward its terminals. once reached, electrical impulse causes membranous sacs (vesicles) to fuse with the terminal’s membrane &contents are released into synapse (space between pre &post synaptic neuron). molecules in vesicle now contain chemical compound called neurotransmitter. here, the “messenger” binds to specific receptors (proteins) of postsynaptic neuron, which then spark electric impulse in now presynaptic neuron. as a postsynaptic neuron, the receptors then release NT that’s taken back up by “presynaptic” neuron where it will be recycled for another electrical impulse. &it goes round &round &round again.
the control unit of all our behavior/mental/physical functions, the brain functions as the body’s nucleus; our command center, how we process info. what happens when this Godly natural drug communication system in brain gets interrupted by some mere substitute? slow stoners like “leo” in that 70’s show are made. your brain on drugs is like an arm functioning as a leg. it doesn’t work that way, silly!
drugs disrupt neurotransmission (&don’t forget, communication is everything!!)
**nothing ever touches like the 1st time &your brain is forever caught trying for that 1st euphoria again. catch 22: when impulse inhibited by drug, more of drug is needed to get high**
like baking, we are made for exact measurements. cravings/withdrawing arise from the brain’s need to now maintain a state of homeostasis (breakdown results in sickness/disease) with the drug. hence, a very moody drug addict. (eat a snickers/get sober).
so, when you snort cocaine up that pretty little nose, you not only kill the cells in your nostrils (bye bye vessels of communication), but the mucus over time decreases. in this final paper for the course, on page “name 4” (mla) most extreme ex. of too much is detailed as nostrils collapsing &1 nostril remaining.
your brain on cocaine has the neurotransmitter (ex. dopamine) so rudely blocked from performing its job properly (attaching to receptors &returning back for rebranding).
alcohol kills neurons that control mental functions, consciousness, those that create new memories. with alcohol abuse, brain’s capability for learning decreases. #loss
in (heroin) addicts, tolerance is built when drug is now metabolized more efficiently &quicker &brain cells become more resistant. receptors become less efficient in activating 2nd messenger system because the effect of the drug (opiates) has on, now diminished senses.
psychoactive chemical in marijuana, thc effects many brain regions including movement, balance, coordination, memory &judgement. hippocampus, where memories are stored &formed.. the damage here is done.
effects of lsd/hallucinogens long-term: psychosis, disorientation, disorganization &inability of brain to recognize reality; dramatic mood swings, flashbacks.
meth - damage to dopamine &serotonin producing cells (neurotransmitters/messengers)
hard to get to “happiness”
ecstasy/mdma - “scoops of brain gone” when neurons in hypothalamus are killed &only maybe grow back later. damages serotonin releasing neurons &reduces serotonin transport (makes u more sad). emotions effected/motivations.
caffeine, stimulant found in coffee “exerts its effects by preventing a neurotransmitter called adenosine from binding to its receptor.” currently, blocking the job function of the neurotransmitter, adenosine which causes sedation. (born with a natural sedative/Drug?? God is good). &now the coffee’s “working.” i’m up!
even our brain can get addicted to negative thoughts (hence depression). a meme i recently saved to desktop reads, “if you realized how powerful your thoughts are, you would never think a negative thought.” your brain is following a pattern, trying to be as efficient as possible.
kinds of NT’s (dated 4/5/07)
acetylcholine, found at neuromuscular junction (nerves &muscles)
dopamine, used in reward system to give you pleasure
norepinephrine, responsible for fight/flight response
serotonin involved in mood &appetite. low levels signify depression.
much goes into an addictive brain besides your brain learning a new “norm” from the drugs. like, risk factors: genetics, environment, possible abuse. knowing what we know now about how addictive our brain is (&how it’s made to function like this for more efficiency).. granted they are committing a crime by taking an illegal substance, going to jail wouldn’t treat an addict.
i am no bird; &no net ensnares me. -charlotte bronte
"never give in, never give in, never, never, never, never -in nothing, great or small, large or petty -never give in except to convictions of honor &good sense." -w. churchill. 10/28/41
the man who does not read has no advantage over the man who cannot read. m.t
i am not afraid of storms, for i am learning how to sail my ship. -louisa may alcott
nothing in this world can take the place of persistence. talent will not: nothing is more common than unsuccessful men with talent. genius will not; unrewarded genius is almost a proverb. education will not: the world is full of educated derelicts. persistence &determination alone are omnipotent.
i am not an extraordinary man, &i am quite ordinary. but God chose me for something quite extraordinary. -a. valladares receives '16 canterbury medal.
not failure, but low aim, is crime -james russell lowell
a genuine leader is not a searcher for consensus but a molder of consensus -mlk jr.
i don't lose any sleep at night over the potential for failure. i cannot even spell the word. -"mad dog mattis"
soft minded men always fear change -mlk jr.
it is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. the credit belongs to the man who is actually in the arena, whose face is marred by dust &sweat &blood; who strives valiantly; who errs, who comes short again &again because there is no effort without error &shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worth cause; who at the best knows in the end the trump of high achievement, &who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold &timid souls who neither know victory nor defeat. -theodore roosevelt
we are what we repeatedly do. excellence, then, is not an act, but a habit. -aristotle
no one can make you feel inferior without your consent. -eleanor roosevelt
i have nothing to offer but blood, toil, tears &sweat. -winston churchill, 1940
i keep my ideals, because in spite of everything i still believe that people are really good at heart. -anne frank
the most courageous act is still to think for yourself. aloud. -coco chanel
art is the signature of man.
a dead thing can go with the stream, but only a living thing can go against it.-gk c.