Reviewing the Medical Books and Journals that constituted Medical understanding a century back.

History of the Book of Medicine

April 6th, 2008 at 6:32 pm

The Fibula and Sciatic Nerve

the fibula.  -- not only does this second bone-the fibula-get additional string in support to the lake proper, but it likewise increases the bony area or surface of the lake, to which its powerful muscular lovers are attached. The Sciatic Nerve.- the large sciatic nerve, its position, course and distribution, is graphically outlined, and as we look upon this point, since the court, we are deeply impressed with the force and truth of what Shakespeare makes one of his characters, to moan say:
"________the cold sciatica Cripples our senators, but their limbs may halt as plainly as their manners."
Now I do understand that this is not terribly exciting reading at this point in time.  Enough to let a person get some sleep at a hotel trying to offer up time share real estate Branson options, I'm sure.

Additional Articles from the Book of Medicine:

  • How Mosquitoes Develop

    How mosquitoes develop.-A Female mosquito lays from 200 to 300 eggs at a time and always in standing water, as the eggs must have still water and no matter how filthy the water, it will not destroy the eggs or prevent their development.

    This is such a basic description that it is almost not worth the ink it is printed with.  But if you take a look at Wikipedia, you might get just a simple sense of how much our knowledge has grown.  Below is what constitutes a basic reference on the biology of Mosquito from Wikipedia.  Where are previous knowledge of a mosquito could be measured in a couple dozen bits, it might now take a few megs of ram to contain our knowledge.

    Anatomy

    The mosquito is composed of a head, thorax, and abdomen. The head contains two compound eyes and proboscis. The proboscis is a piercing mouthpart used to suck blood from its prey. The mosquito’s head is mostly eye. Each eye is made up of many tiny lenses forming a compound eye. This type of eye allows a very big field of vision that easily detects movement. Next is the thorax. The thorax has one pair of wings and one pair of halteres. The thorax also has markings that are used in the identification of the mosquito. The abdomen, or gut, expands as it ingests its prey’s blood. The abdomen also has many markings that are used to identify the mosquito species.


    [edit] Life cycle and feeding habits

    Culex mosquito larvae

    Culex mosquito larvae

    In its life cycle the mosquito undergoes complete metamorphosis, going through four distinct stages: egg, larva, pupa, and adult, first described by the Greek philosopher Aristotle.[28]


    [edit] Egg

    Female mosquitoes lay their eggs one at a time or together in rafts of fifty or more eggs on the surface in fresh or any stagnant water. Anopheles and Aedes mosquitoes do not make egg rafts but lay their eggs separately. Culex, Culiseta, and Anopheles lay their eggs on water while Aedes lay their eggs on damp soil that is periodically flooded by water. Most eggs hatch into larvae in about 48 hours. A female mosquito may lay a raft of eggs every third night during its life span if it can find enough blood to develop the eggs.


    [edit] Larval stage

    The hatching eggs turn into larvae that live in the water, coming to the surface to breathe. The first larval stage is known as the first instar. As they grow, they shed or moult their skin about four times, growing larger after each moulting. After the first molt they are second instars, then third, then fourth. Most larvae use siphon tubes going to the water surface for breathing and hang on or near the water surface. Anopheles larvae do not have a siphon and typically lie parallel to the water surface. The larvae eat micro-organisms and organic matter in the water for food. Mosquito larvae, commonly called “wigglers” or “wrigglers”, must live in water from 7 to 14 days depending on the water’s temperature. At their last moult they may be up to 1 cm or 1/2 inch long. In each stage they may be eaten by other insects or fish. Mosquito larvae in the genus Toxorhynchites eat other mosquito larvae.

    The length of the first three stages (or instars) is dependent on the species and temperature, with lower temperatures increasing the length of the development stage.[29] Culex tarsalis may complete its life cycle in 14 days at 20 C (68 F) and only ten days at 25 C (77 F). Some species have a life cycle of as little as four days, whereas in other species some adult females can live through the winter, laying their eggs in the spring. Many species of mosquito live their adult stage in roughly two weeks to two months. The larvae are the “wrigglers” found in puddles or water-filled containers. These breathe air through a siphon at the tail end. The pupae, or “tumblers”, are nearly as active as the larvae, but breathe through thoracic “horns” attached to the thoracic spiracles. Most larvae feed on micro-organisms, but a few are predatory on other mosquito larvae. Some mosquito larvae, such as those of Wyeomyia live in unusual situations. These mosquito wigglers live either in the water collected in epiphytic bromeliads or inside water stored in carnivorous pitcher plants. Larvae of the genus Deinocerites live in crab holes along the edge of the ocean. On the fourth molt the larva changes into a pupa.


    [edit] Pupa

    The pupae are lighter than water and float on the surface as the mosquito larva metamorphoses (changes) into an adult mosquito in about two days. Pupae do not have mouths and therefore do not feed. This is important to know from a larviciding point of view because most larvicide has to be ingested by the mosquito. A surface oil or mmf (monomolecular film) should be applied to the breeding site as a means of suffocating the pupa.


    [edit] Adult

    The newly emerged adult must rest on the surface of the water for a short time to allow itself to dry and all its parts to harden before it can fly. This requires still water: mosquitoes do not breed in fast-moving water.

    The total time to go through all four stages depends on the temperature and the type of mosquito, but typically takes 14 days or less in warmer weather. In various species the time varies from 4 to 30 days.

    Most mosquito species outside of the tropics overwinter as eggs, but many overwinter as larvae or adults. Mosquitoes of the genus Culex (a vector for St. Louis encephalitis) overwinter as mated adult females.

    Most mosquitoes stay fairly close to the ground and do not range too far from where they were born, but may be dispersed long distances by wind. Mosquitoes are not strong flyers, making only 1-2 km/h (1-1.5 mph); therefore, an electric fan may suffice as an effective mosquito screen. They feed mostly in the mornings and evenings and occasionally at night, avoiding the heat of the day. During the day they usually find somewhere cool to rest. Mosquitoes can tend to live over puddled water or grassy areas.

    Mosquito biting finger

    Mosquito biting finger

    Only female mosquitoes bite animals to get blood needed to produce eggs. Male mosquitoes do not bite, but both the male and female feed on the nectar of flowers for food. In most female mosquitoes, the mouth parts form a long proboscis for piercing the skin of mammals (or in some cases birds or even reptiles and amphibians) to suck their blood. As opposed to a syringe’s typically smooth needle, the mosquito proboscis is highly serrated, which leaves a minimal number of points of contact with the skin being pierced — this reduces nerve stimulation to the point where the “bite” is typically not felt at all. (See the Mosquitoes and health section below for an explanation on the swelling). The females require protein for egg development and laying, and since the normal mosquito diet consists of nectar and fruit juice, which has no protein, most females must drink blood to lay eggs. Males differ from females, with mouth parts not suitable for blood-sucking.

    The female mosquitoes locate their next blood donor victims primarily through scent. They are extremely sensitive to the carbon dioxide in exhaled breath, as well as to substances found in sweat and various body odours such as 1-octen-3-ol. They are believed to be able to track potential prey for tens of meters. Some people attract more mosquitoes than others, apparently based on how they “smell” to a mosquito. Mosquitoes can also detect heat, so they can find warm-blooded mammals and birds very easily once they get close enough. Repellents like DEET work by disorienting the mosquito as it gets close to its potential next meal but do not kill mosquitoes. Surprisingly this works about 95% of the time.[citation needed]

    Male mosquitoes may tend to be smaller than females, with features such as feathered antennae and conspicuous external genitalia.

  • Grace and Ease in Walking

    Grace and Ease in Walking.- in the several beautiful and anatomical charts illustrating the bony, muscular and an internal mechanism of the human frame we have been consciously awakened to its complexity we been forcibly impressed as the amazing skill in wisdom displayed in his marvelous arrangement, and at the general order, system, harmony and perfection which everywhere prevails throughout the diversified contrivance of the body.  But its wonders do not stop there.  The graceful motion, ease with which we won, lead, etc., demonstrating with/entity difference Russell’s concern to those movements contract and obey the impulse of the will.

    This is the last section of entries from Book 1 of the Book of Medicine and soon I will be toasting the completion of the transcription of the first 70 pages of the book toasting myself with a nice red wine in a new set of Riedel wine glasses.  I am going to be temporarily skipping Book 2 on anatomy and focus next on Book 3 ‘Preventative Medicine’ which includes such interesting sections as ‘How to Get Rid of Flies’ and killing cockroaches, sexual diseases and sexual education for children. I’ve got a feeling this next section will be much more interesting.

    Here’s the last few sections all together to complete Book 1.

    The Voice.- the voice may utter 1500 letters in a minute, yet the articulation of each of those sounds requires a different and distinct position of the vocal organs, the muscles of which move a surprising celerity and swiftness.

    Deafness of the Fingers.- in music we train the muscles of the fingers until the glide over the keyboard of the piano with dexterity and precision, and perform the most simple and delightfully exquisite music and onto the grand, difficult and complex passage of a private harmony.  The mind of the skillful and professional violinist is upon the music which his right hand is executing by the very movements of the bow, yet the muscles of his left hand and fingers are deathly engaged in determining the length of the space of the strings, the character and duration of each note; and so rapidly, carefully, aye, even unconsciously are these complex movements made, but not a false note is heard, though the variation of a singles hair’s breadth would cause a discord, and is spoil the pleasing effect of the music, and destroy the attractiveness of its harmony.

    Muscle Development.- the bicep muscle in the arm of the blacksmith may grow strong, Howard, firm, and a solid almost as a club; the legs of the pedestrian may become large and well developed; the hand of a prizefighter trains over the force of a sledgehammer; while the end and terms, engraver trees line so delicate line as the invisible to the naked eye, and the fingers of the blind acquirer delicacy of touch that almost compensates for the missing sense.  Thus there are few conceptions of the designing mine which the muscular system of man cannot be made to execute and perform.

  • Breathing Capacity of Lungs

    Breathing Capacity of Lungs. –the breeding capacity of the lungs bears a close correspondence to the stature of man. For an ordinary sized man of about 5′8″ in height, it will be 230 cubic inches, or about 1 gallon of air, and for each additional inch of stature up to 6 feet, there will be an increase of 8 cubic inches. in a forcible expiration all the air in the lungs is not expelled; or still remains behind 100 cubic inches. thus, with his son expelled air, the breeding capacity of an ordinary sized man is about 330 cubic inches, or equivalent to 11 pints of air. Of the 230 cubic inches, 100 can only be forced into lungs by the exercise of great effort, and is available for emergencies as striking a heavy blow, or for the purpose of training, as in singing, rolling, running, climbing, etc.; but the extra amount of air old was on hand in the lungs is of great value, since it enables the lungs to perform their functions continuously, even under severe and violent exertions.

    _________________________

    At this point in time I’m on page 47 of this text. We’ve been walking through basic anatomy, and I have a layman’s education in anatomy. I think this might be the first time that I’ve actually learned something conceivably useful from the book. I do not know how accurate it might be, I was intrigued by the concept that some of the air for the lungs remains in the lungs continuously. I do understand the concept of air pressure and this does make logical sense in that regards. It would also explain why it’s important to cover hole in the chest if you happen to puncture a lung. The puncture creates a deflated long which is lost that amount of air which remains at a constant level.

    All in all I’m quite impressed that I have learned something from the book that’s meant to teach me something.

 

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