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Respiratory system basic function
provides the blood with oxygen
blood carries oxygen throughout the body
oxygen carried to blood via inspiration (breathing in)
CO2 eliminated from blood via expiration (breathing out)
Entire process (inspiration + expiration) = respiration
air conducting function
trachea
bronchi
bronchioles
gas exchange function
respiratory bronchioles
alveoli
General theories on the respiratory system from ancient Greece
pneuma is a vital substance in the air
our bodies extract it from the air via respiration
breathing distributes pneuma in the body
the lungs, taking in air from outside, are vulnerable to:
temperature
moisture
pressure
particles
Respiratory tract is shaped like inverted tree: roots at the top, branches at the bottom
lungs pump pneuma to heart
lungs regulate heart temperature
Hippocratic Corpus treatise On Breathes
“wind in bodies is called “breath”; outside bodies it is called “air”
Breath is continuous and essential
Consists of inspiration and expiration
Aristotle significance to respiratory system
Thought that heart had 3 chambers and that all chambers connected directly to the lungs. This was incorrect, but significant because he was the first to recognize the branching system of vessels emanating from heart and connecting to lungs
Galen thoughts on respiratory system
respiration was partially voluntary (correct)
It was connected to speech (correct)
fire was extinguished if air cut off (correct)
Breathing was necessary to maintain body temperature (not too hot or too cold) (partially correct)
Respiratory system in Ancient Greek in short
The ancient Greeks got a lot correct about the human respiratory system
pneumothorax
PNEUM- = air, gas
-o- = CV
THORAX- = chest, cavity, pleural (side) cavity, thorax
posterolateral
POSTER- = behind, in back
-o- = CV
LATER- = side
-al = adjective
staphylococci
STAPHYL- = (bunch of grapes)
COCC- = (berry) (used specifically for spherical bacteria, whereas BACTER- is used for more rod-shaped bacteria)
microorganisms that cluster together like grapes
streptococci
STREPT- = twisted
COCC- = (berry)
microorganisms that form twisted chains
tracheostomy/tracheotomy
TRACH(E)- = trachea
STOM- = opening
OR
TOM- = cut
-y = noun ending
bacteriophage
BACTER(I)- (small staff) bacterium
PHAG- = eat
e- = noun ending
(sometimes just “phage”)
across the thorax
transthoracic
pneumocentesis part of speech
noun
vasovagal part of speech
adjective
atrium part of speech
noun
otorhinolaryngologist part of speech
noun
mitral part of speech
adjective
asphyxiate part of speech
verb
expire part of speech
verb
ossify part of speech
verb
bisect part of speech
verb
aspirational part of speech
adjective
abduct part of speech
verb
metabolic part of speech
adjective
a. Briefly (in 1 sentence) explain what linguistic feature the terms convalesce, crescent, and senescence have in common.
b. Analyze one of these words as a specific example, giving the prefix (if any), combining form, suffix (if any), connecting vowels (if any), and the meanings of these parts.
a. The linguistic feature the terms above have in common is that they are all inceptive verbs, which means that they all have the letters -sc- inserted in between their stem word and their ending, which indicates that the verb action is beginning to be performed.
b. crescent (adjective)
CRESC-ent
CRESC is a latin word stem that means (begin to) grow (note that this contains the "-SC," which is where the "begin to" comes from).
-ent is a verb- or adjective-forming suffix.
Originally (in the UK), an independent judicial officer who acts on behalf of the Crown (the royal family) to investigate the cause and circumstances of violent or unnatural, sudden, or unexplained deaths. Now more usually called a "medical examiner."
coroner
Briefly (in 2–3 sentences) explain the relationship between the combining form BOL- and the current meaning of the word "diabolic." Include the literal meaning of the word.
The combining form BOL- means “a throwing.” A derivative of this word/a word that contains this stem is “diabolos,” which was a word that was used to refer to the devil or Satan. When “diabolos” itself was translated into English, it become devil, but words derived from diabolos still exist in English today, one of those words being diabolic, which means devilish, and the literal meaning is “Pertaining to a throwing across/apart; dia-BOL-ic).”
Briefly (in 1 sentence) explain William Harvey's most significant contribution to our knowledge about the cardiovascular system. Include the century in which he made his contribution.
William Harvey’s most significant contribution to our knowledge about the cardiovascular system is the fact that he discovered that our circulatory system is a closed system, which describes how blood moves and circulates through the body, which he discovered during the 17th century.
"cessation of breathing, especially during sleep"
apnea
Digestion
dis-/di- = apart, away
GEST- = carry, bear
-ion = noun suffix
Literal: carry away
Actual: breakdown of food into increasingly smaller components for absorption into the body
pertaining to bile (adj.)
biliary
vomiting of fecal material (noun)
copremesis
incomplete development of the tongue (noun)
ateloglossia or hypoglossia
process by which complex substances are converted into simpler substances (i.e., broken down) (noun)
catabolism
Enzyme of gastric juice, acts as catalyst to break down protein
pepsin
Gibberish stimulating coherent speech; babbling; speaking in tongues (noun)
glossolalia
involuntary series of contractions in the walls of organs through which food passes, propelling food along (noun)
peristalsis
swallowing (noun)
degluitition
study and analysis of feces; literature using fecal imagery (noun)
scatology
dung-eating (adj.)
coprophagous
inflammation of the diverticula (small pouches formed by herniation of the wall of an organ, usually the colon) (noun)
diverticulitis
first section of the small intestine, approximately 12 inches long
duodenum
(abnormal) narrowing of the pyloric orifice (noun)
pyloric stenosis
agent that induces chemical changes in other substances without being altered itself (noun)
enzyme
The GI organ that takes its name from its fleshy consistency
pancreas
This cul-de-sac (dead end) or blind portion of the large intestine is known as the
cecum
This straight segment of the large intestine is known as the
rectum
This S-shaped segment of the large intestine is known as the
sigmoid colon
Widespread beverage named after the digestive enzyme pepsin and the kola nuts used in the recipe
pepsi-cola
Conjugation
Changes in verb endings
Participles
Word forms that “participate” in both adjective and verb functions (adjectives formed from verbs). (They can also be used as nouns).
English examples: running, swimming, reading
Participles endings (for present tense)
-ant, -ent, -ient
Inceptive verbs
characterized by the letters -sc- inserted between the stem (cf) and the ending. They denote the beginning of an action (the “inception” or start of an action)
antebrachium
ante-BRACHI-um
ante- = before
BRACHI- = (upper) arm
-um = noun
forearm
Fungi
FUNG- = mushroom, fungus
i- = noun plural ending
Somnifacient
SOMN- = sleep
-i- = CV
FAC- = make
-ient = latin participial suffix
causing sleep
insomnia
in- = not
SOMN- = sleep
-ia = noun ending
facial hemiplegia
FACI- = face
-ial = adjective(?) suffix
hemi- = half
PLEG- = strike, paralyze
-ia = noun suffix
OR
-plegia = suffix for paralysis
Paralysis of the muscles on one side of the face
bisection
bi - two
SECT- = cut
-ion = noun ending
The act of cutting something in two
abduction
ab- = away from
DUCT- = lead, bring, carry
-ion = noun ending
movement (of the limbs) away from the median plane of the body; the act of taking someone away by force
adduction
ad- = to, toward
DUCT- = lead, bring, carry
-ion = noun ending
movement (of the limbs) toward the median plane of the body
Did hospitals exist in ancient Greece/Rome?
No
Hospital definition
a building especially for sick people, where they would be treated by doctors
Earliest hospital
Built in the early 9th c. CE in Baghdad (in Mesopotamia/Persia, later Iraq), during the Islamic Golden Age (8th-14th centuries)
Greek forerunner of hospital
dormitories in the sanctuaries of Asclepius
Treatment at sanctuaries of Asclepius involved a process known as…?
temple incubation
Temple incubation
A method to induce meaningful dreams via dream divination that was used to cure illness and was used mainly at sanctuaries of the god Asclepius
Why does Asclepius have a snake (staff of Asclepius)
Various theories:
Snakes shed their skin and seem “reborn” or healed
snakes go under the ground and come back up, and thus seem “reborn,” healed, and/or rejuvenated
because snakes go to and from underground, they might have been seen as communing with the dead
Story of how Asclepius witnessed one snake resurrect another and learned from this snake
Venom as an antidote/medicine in some cases
What is a sanctuary?
A plot of land set apart as sacred to a particular deity. Within the sanctuary were various buildings, including a temple to the deity, storehouses, housing for the temple priests, and many other structures
Where was the main sanctuary of Asclepius?
Epidaurus
Temple incubation process
A visitor had to follow certain rituals:
fasting (for bodily purification)
praying to Asclepius
bathing (also for purification)
sacrificing to the god (e.g., a bull or sheep)
After the temple incubation process, what did a patient do in the sanctuary of Asclepius?
spends night in abaton - sometimes many nights, depending on the severity of the illness
sees Asclepius in their dreams
receives advice in dreams
upon waking up, tells the doctors of his dreams
doctors follow the advice
patient is miraculously cured
Systole
refers to the period of contraction of the heart when the blood is sent through the aorta and the pulmonary artery
Diastole
the period of expansion when the heart dilates and the atria and ventricles fill with blood from the venae cavae and the pulmonary vein
sphygmomanometer
Blood pressure machine
Mitral valve
lies between the left atrium and left ventricle and allows passage of blood from the atrium into the ventricle. It is also called the bicuspid valve because it has two cusps. It is meant to be a one-way valve.
Metabolism
The sum of the processes of anabolism (and catabolism). Anabolism is the constructive phase of metabolism, the process by which cells take nutrients from the blood required for repair and growth of tissue. Catabolism is the process by which complex compounds are reduced to simpler ones, often accompanied by the release of energy
History of the CF “BOL-” and it’s modern day meaning(s)
“BOL-” means a throwing. A verb diaballein had a secondary meaning which meant to make a false accusation or to slander. From this, the noun diabole (slander) was formed. The noun diabolos originally meant one who slanders an evil person. This word was used in the devil as diabolos, for devil. Some of the modern-day words that use “BOL-” have a derivative of this meaning rather than it’s meaning of a throwing. One such example of this is the word diabolic, which means devilish.
Heart
pumps blood
Artery
vessel that carries blood away from the heart to various parts of the body
Vein
Vessel through which blood passes back to the heart from various body parts
Galen
2nd century CE Greek working in the Roman Empire
Worked at medical school at Alexandria
Came up with the first main working theory of how blood circulates in the body
Incorrect theory, but highly influential
Studied medicine from early age (16)
Returned to Pergamum, became surgeon to gladiators
on-the-job training as doctor, surgeon, nutritionist
162 CE on: appointed official physician to emperors Marcus Aurelius, Commodus, Septimius Severus
Based his investigations on earlier (Greek) works of physiology and medicine
(probably) not allowed access to human bodies
saw inside humans via injuries and surgery
mostly experimented on living and dead animals
accepted doctrine of 4 humors
body parts and their actions resulted from different combinations of the elements, qualities, and humors
Galen’s thoughts on the cardiovascular system
veins contain blood
liver is source of all veins
food becomes blood, purified in liver
assimilated blood (in tissues) is lost via evaporation
blood nourishes lungs
heart intrinsically pulsates
contracts during phase called systole
dilates (expands) during phase called diastole
respiration cools the system
arteries contain both air and blood
arteries and veins are different
arteries always pulsate
veins do not
Open-ended vascular system
mainly blood in arteries (not air); pores in heart separate venous blood from arterial blood
What did Galen’s cardiovascular system provide an explanation for?
digestion
production of blood
distribution of nourishment in body
generation/conveyance of heat
Galen’s most significant contribution to cardiovascular discoveries
Synthesized existing knowledge from previous scholarship
first to demonstrate (convincingly) that arteries contain blood
narrowed down questions still needing answers (ex: movement of blood within heart)
What was Galen wrong about in regards to the cardiovascular system?
concept of “open” circulatory system - that blood did not return to the heart or other organs (ex: liver)
body “consumes” blood, which needs to be replenished
liver produces blood from ingested food
(among other things)
When were Galen’s errors corrected?
The 17th century CE by William Harvey
systole (breakdown)
syn- = together/with
STOL- = send, contract
-e = noun-forming suffix
contraction of the heart
diastole (breakdown)
dia- = through, across, apart
STOL- = send, contract
-e = noun-forming suffix
Dilation of the heart
coronary
CORON- = crown
-ary = adjective-forming suffix
crown
cordiform
CORD- = heart
-i- = CV
-FORM = shape
adjective; looks like heart
vagotropic
VAG- = (wandering) vagus nerve
-o- = CV
TROP- = turn
-ic = adjective-forming suffix
affinity for the vagus nerve
Inflected
Words change their forms (usually their endings) to indicate their functions in the sentence
Declension
The patterns of inflections for nouns and adjectives
Conjugation
Verb inflection patterns