microscopic view of alveoli
https://drive.google.com/open?id=0B1GcfihbWYbzV3hVN1JZVzJhYUk
(the video was a violation in the Tumblr rules since it was considered âsexually explicitâ so hereâs a link to the video)
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@dissectingacat
microscopic view of alveoli
https://drive.google.com/open?id=0B1GcfihbWYbzV3hVN1JZVzJhYUk
(the video was a violation in the Tumblr rules since it was considered âsexually explicitâ so hereâs a link to the video)
 Epiglottis
the opening into the larynx.
made out of cartilage and covered in mucous.
closes the glottis (under the epiglottis) during swallowing, preventing food and drink from entering the larynx and trachea (windpipe) and directing it further back into the opening of the esophagus (where food should go).
Larynx
attached to the vertebrae and trachea & contains vocal chords (âvoice boxâ) & connected to lungs.
below and behind tongue.
makes sure to take in air instead of food.
causes mammals coughs to remove anything thatâs not air.
Trachea
windpipe
attached to the larynx.
allows air to come into the body.
lead to the right and left main (primary) bronchi.
Left and Right Primary Bronchi (LPB/RPB)
aka âleft and right main bronchiâ.
they enter into two different lobes.
an airway in the respiratory tract that conducts air into the lungs.
they branch into smaller secondary and tertiary bronchi which branch into smaller tubes aka bronchioles.
C-Shaped Cartilage
back of the trachea.
aids in breathing - cartilage opens at the esophagus and is replaced by connective tissue and muscle. (so able to expand because itâs not a hard bone...itâs a cartilage.)
Alveoli
tiny air sacs.
at the edges within the lungs.
have the wet walls, but they are very thin.
gas exchange from oxygen to carbon dioxide.
Diaphragm
located under the lungs.
in the respiratory system.
sheet of muscle that separates the chest from the abdomen.
attached to the spine, ribs and sternum and is the main muscle of respiration, playing a very important role in the breathing process.Â
Left and Right Lung Anterior Lobes
located inside of the lungs. â
both perform the same functions -Â gather blood from the top parts of the body and takes it to the heart.
at the top of all of the other lobes. (superior).
carry blood into the heart.
Left and Right Lung Medial Lobes
located inside of the lungs.Â
same function -Â gather blood from the middle parts of the body and takes it to the heart.
between the (left/right) anterior and posterior lobes.Â
Left and Right Posterior Lobes
located under the rest of the lobes inside of the lungs.
same function -Â gather blood from the lower parts of the body and takes it to the heart.
Mediastinal Lobe
located between the left and right lungs and under the heart.
helps in combining oxygen and blood and helps the oxygen-filled blood go through the body.
bone markings
muscle system
november 16, 2016
prelab/introduction
1a.)
head: the upper part of the body of a vertebrate, containing the brain and the eyes, ears, nose, mouth, and jaws.
tendon: Â a flexible tissue attaching a muscle to a bone. does not rip. fascia: Â a thin sheath of tissue attaching a muscle or other organ.
insertion: the attachment of a muscle tendon to a movable bone.
fascicle: the compartments that contain bundle of muscle cells.
origin: the attachment of a muscle tendon to a stationary bone.
perimysium: sheath of connective tissue that covers fascicles.
muscular system: organ system made up of skeletal, smooth and cardiac muscles. the muscular system takes care of movement, maintaining posture, and regulating temperature.
endomysium: connective tissue wrapping that surrounds each individual muscle cells/fibers.
epimysium: Â dense irregular tissue surrounding the skeletal muscle
superficial fascia: aka hypodermis. thin layer of fatty connective tissue in the body.Â
1b.) prime mover: aka agonist. a muscle that has the major responsibility for making a certain movement. antagonist muscles oppose or reverse a particular movement. antagonist helps regulate action of prime mover by contracting slightly to provide some resistance to prevent overshooting the mark; prime mover and antagonists are located on opposite sides of joint. synergists help prime movers by adding a little extra force to their movement or reducing unnecessary movements that might occur as prime mover contracts also known as âjoint stabilizersâ.
1c.) Â muscular movements are controlled by the nervous system, which controls the # of muscle fibers it stimulates for a particular movement. small movements require only a few muscle fibers to be used. powerful movements cause many muscle cells to be used. the nervous system must predict how big and powerful a movement needs to be & must send the appropriate nerve impulses down to the muscle fibers at that area of the muscle. (i hope the last sentence made sense.)
1d.) if one doesnât name the muscles, you can not tell whether which muscle is which. most of the names of muscles are from either greek or latin word, thatâs why there are word roots that explain what muscle is what. sometimes the root hints of the action of what that muscle does.
purpose
to observe the different muscles and compare the akitoâs and a human beingâs muscles.
method
day 2: neck/throat muscles
put on the appropriate equipment, which includes the mask, gloves, and apron. one (out of two partners) grabbed the dissection book, from the back-right of the room facing the board. turned the page to the neck/throat muscle section and leave it on the side of the table. one (out of two partners) grab the assigned cat from the feline freezer to the table area where usually the tasks of dissection are performed. we carefully opened the lid of the box. took out the toolbox and checked if there are enough tools, just in case. slowly removed the cat from the plastic bag on the lid, while keeping all of the liquids in the same bag. closed the bag and kept the cat on top of the lid. Â grabbed the scalpels and cut in the middle of the neck of the cat really slowly. knowing the muscles are in layers, check how deep the scalpel went through. kept cutting until went a little farther than should have. used the teaser needle, the bent one, to move the skin layer (which is thick) on the side. used the forceps to open up to have a better view of the catâs neckâs muscles. observed and took pictures of the muscles. used the dissection book to clarify which muscle is which. put the cat back in the bag, made sure the bag is closed and does not have any leaks. cleaned up the lid and tools and the table area where we worked. put the tool box inside and then closed the lid. put the box with the tools and the cat back in the fridge of the dead felines.
day 3 : chest muscles
put on the appropriate equipment, which includes the mask, gloves, and apron. one (out of two partners) grabbed the dissection book, from the back-right of the room facing the board. turned the page to the neck/throat muscle section and leave it on the side of the table. one (out of two partners) grab the assigned cat from the feline freezer to the table area where usually the tasks of dissection are performed. we carefully opened the lid of the box. took out the toolbox and checked if there are enough tools, just in case. slowly removed the cat from the plastic bag on the lid, while keeping all of the liquids in the same bag. closed the bag and kept the cat on top of the lid. opened the dissection book to page 6 which should have another catâs chest dissected. Â found each chest muscle and divided each muscle with the scalpel. observed and took pictures of the muscles. used the dissection book to clarify which muscle is which. put the cat back in the bag, made sure the bag is closed and does not have any leaks. cleaned up the lid and tools and the table area where we worked. put the tool box inside and then closed the lid. put the box with the tools and the cat back in the fridge of the dead felines.Â
day 4 : abdomen muscles
put on the appropriate equipment, which includes the mask, gloves, and apron. one (out of two partners) grabbed the dissection book, from the back-right of the room facing the board. turned the page to the neck/throat muscle section and leave it on the side of the table. one (out of two partners) grab the assigned cat from the feline freezer to the table area where usually the tasks of dissection are performed. we carefully opened the lid of the box. took out the toolbox and checked if there are enough tools, just in case. slowly removed the cat from the plastic bag on the lid, while keeping all of the liquids in the same bag. closed the bag and kept the cat on top of the lid. opened the dissection book to page where the abdomen muscle layers were. found each chest muscle. muscles were found easier because of the white, vivid outline that showed where each muscle is. the outlines were only defined because thatâs how akito is. and divided each muscle with the scalpel. observed and took pictures of the muscles. used the dissection book to clarify which muscle is which. put the cat back in the bag, made sure the bag is closed and does not have any leaks. cleaned up the lid and tools and the table area where we worked. put the tool box inside and then closed the lid. put the box with the tools and the cat back in the fridge of the dead felines.Â
day: i lost count because i was missing too long and my account managed to get hacked. new link will come soon as soon everything goes out well.
put on the appropriate equipment, which includes the mask, gloves, and apron. one (out of two partners) grabbed the dissection book, from the back-right of the room facing the board. turned the page to the neck/throat muscle section and leave it on the side of the table. one (out of two partners) grab the assigned cat from the feline freezer to the table area where usually the tasks of dissection are performed. we carefully opened the lid of the box. took out the toolbox and checked if there are enough tools, just in case. slowly removed the cat from the plastic bag on the lid, while keeping all of the liquids in the same bag. closed the bag and kept the cat on top of the lid. opened the dissection book to the pages where the leg and arm muscles were. if itâs not your cat, watch carefully and point where the cat should be cut. make sure your partner agrees and understands what you are talking about.
cat to human comparison
neck/throat
humans and cats have similar neck/throat muscles, not all muscles are the same since cats have six throat muscles and humans have fourteen different muscles on the outside. they both contain a masseter muscle, digastric muscle, mylohyoid muscle, sternohyoid muscle, sternothyroid muscle, and sternocleidomastoid. they have cartilage going from the middle of the throat and under, there is cartilage. the differences are that the humanâs neck/throat muscles connect to the hyoid bone and a catâs throat muscle does not connect to the hyoid bone at the top.
chest muscle
cats and humans have similar muscles like the pectoralis major and the pectoralis minor. though the pectoralis minor is very huge, in size, on the cat, and smaller on the human. major is very small, in size, on the cat and bigger on the human chest. the human chest does not include the pectoantebrachialis and xiphihumeralis like the cat chest; though the human chest has more muscles on the superficial layer.
abdomen muscle
humans have the rectus abdominis, external oblique, latissimus dorsi, internal oblique, and transverse abdominis. cats have that and linea alba, which humans do not have. humans, they have more muscles including the rectus sheath, serratus anterior, external and internal intercostal.
discussion/analysis
during the day that the abdomen muscles were being observed, the mistake of cutting in the linea alba. later to be discovered that the cut was supposed to be in between of the linea alba and external oblique. The mistake of the huge cut that made it deep into the intestines made a small ruckus and caused to mess up the lab portion that was being worked on, so to fix that mistake, the cut was forced to close by 4 pairs of forceps.
personal reflection:Â
i felt uncomfortable starting out my year with cutting a cat, but this is what it takes to pass highschool. honestly, this is not the first worst think iâve ever experienced. cutting into the cat was stressful yet very exciting in its own twisted way. i have fun doing this with a partner like sarah hoac. iâm not a book-kind of learner. iâm more of a hands on learner which i recently found out through these lab projects. i appreciate the fact that hoac also saw that i am a hands-on person and she lets me cut the cat and talks while iâm doing it so i will understand whatâs going on. i feel bad for relying on her because on day one and two i could tell she didnât like this whole idea of cutting the cat. the first three or four days just felt like complete chaos. i think it was the third day we cut way too deep and mrs. carey closed the gap with forceps. though overall, i really appreciate hoac for understanding the book. when working on the back, i realized hoac and i cut the wrong side but we continued going because it still worked out well.Â
later on, i went to a different country, which is the country i was born in. i tried buying tickets before but they didnât accept my paperwork until i have become 18. there was an 80% i couldnât come back but the 20% kept me going for years. the timing of the trip was awful because itâs a school week which almost drove me nuts. i spent some days in couple cafes to contact sarah and see what was going on. overall, my situation got bad.
once i came back, i had a new partner which wasnât bad since sheâs really pretty and very smart. i was kind of relieved i had someone to catch up with, though my timing these couple months isnât great since my wifi got shut of for weeks so the editing my blog thing only happened in school and a friendsâ houses.Â
emily murphy, my new part-time partner, came back and we worked on the cat as much as possible. i personally still donât understand the arms and legs but I kind of get the estimated area and where they are, i guess. (i donât know how to word this.) it was a new cat that we worked with, and i really wish i was faster when it came to this but i have to find other ways to learn.Â
i apologize iâm doing not so great but itâll change. iâm having a hard time right now but you canât succeed without failing. (this sounds like a diary entry now haha, sorry.)
references
Marieb, E. N. (2004). Human Anatomy and Physiology (Sixth ed.). San Francisco, CA: Pearson Benjamin Cummings. Allen, C., &Â
Harper, V. (2006). Cat Dissection: A Laboratory Guide. Hoboken, NJ: Wiley. âAbdomen.â Abdomen Anatomy, Area & Diagram | Body Maps Healthline Media, 25 Oct. 2014. Web. 28 Nov. 2016.Â
diagrams and labels
human neck:Â
https://drive.google.com/file/d/0B1WRoBZGrsWLZU9qdzdRMEwzX00/view
https://drive.google.com/file/d/0B1WRoBZGrsWLRy05ZlQxRmY2bFE/view
cat neck:Â
https://drive.google.com/file/d/0B1WRoBZGrsWLbWFLeUpDWTVGd1E/view
https://drive.google.com/file/d/0B1WRoBZGrsWLQkgxQjNTYzlKS2c/view?usp=sharing
human chest:Â
https://drive.google.com/file/d/0B1WRoBZGrsWLT1RGLWp6NHR5dW8/view
cat chest:Â
https://drive.google.com/file/d/0B1WRoBZGrsWLQlJuOFFQbVpBRUU/view
https://drive.google.com/file/d/0B1WRoBZGrsWLXzkwQ25FR25rQkU/view?usp=sharing
cat leg muscles:Â
itâs a video. (the word video is linked.)
(this is probably the worst grade yet.)
day 1
october 11, 2016
introduction:Â
dissection is an act of cutting into a body (usually/hopefully a corpse) human or nonhuman for the purpose of studying or analyzing it. comparative anatomy is the study of similarities and differences in the anatomy of different species. comparative anatomy has long serves as evidence for evolution, it indicates that various organisms share a common ancestor. cats are used for dissection because they have a large body so the insides are seen better and the catsâ structure are very similar to a human's body.
purpose:
the observation of the external features that the cat, named Akito, has.
method:
the students picked a number from a bucket since the number corresponds to a cat and a bin. put cat on the lid of the box and checked if there are enough tools in the toolbox. grabbed the scissors and cut the sealed part of the bag. slowly removed the cat from the plastic bag, while keeping all of the liquids in the same bag. in the end, everyone took photographs of their cats and their different regions. to see the cat's mouth, the students used tweezers to open the cat's mouth. to see close, use sissors to cut a piece of skin from the lower/hind legs and neck. receive a glass slide and microscope. turn on the microscope and put one of the skin pieces on the glass slide, and place the slide on the microscope. use the 4x knob and take a picture of the skin. repeat with the other skin piece of skin thatâs from the neck region (thick skin).
discussion/analysis:
the original claim was supported by/from the data. all the data, or information, and pictures shows what was seen on the cat. the catâs anatomy is very similar to a humansâ anatomy. the differences are the different placement of the teeth within humans and cats, the placement of ears, humans have hands, cats have paws, cats have whiskers and humans donât, and the mammary glands are in different places. cats have mammary glands along their body and humans have it in their upper body.
results akito is female. She had a slit throat strands of hair all over her body, and is skinned. she had a lot of fat around her thoracic and pelvic region. she also had a bright-blue vein on her right arm and a red vein on her left arm. she had cloudy eyes, which means she was blind, and a slight locked jaw. akito had two forelimbs and two hind limbs, a tail, a face, whiskers, vibrissae, paws, ears, teeth, and pads. in the mouth, akido had four canines, eleven incisors, four molars, and eight premolars.
questions (well answers actually):
the cat, akito, had a lot of fur on her head. she had these blue eyes but not well seen since they were cloudy which means she is blind. knowing that she is blind, means she had to feel what was going around her. every cat has a rough tongue which is used to clean fur off themselves and their spawn.
the thick pads (or the toe beans) are used for balance while the cats are walking. the pads allow her to move around without falling because they create friction to the ground and on steep areas.
the air or wind carry vibrations. the catsâ whiskers can help the cats detect their paths while walking, danger, and etc.
catsâ and humansâ dental structures are very similar to each other but the difference is that the felinesâ dentition is much more far apart than a humanâs and some of the teeth are sharper than humansâ.
akito is a female. her legs are farther apart than other cats and smooth anal region which means no male reproductive system.Â
conclusion:
the external features of the cat was observed on a surface and microscopic level. the students first had to look at the different regions of their cat. pictures were taken of the different parts of the cat. the students observed the different parts of the cat's face. they looked at and in their cat's mouth. in the mouth, the students figured out the different type of teeth and looked the tongue that was sticking out. the students also looked at their cat's eye, where they saw the three eyelids. the cat's gender was seen around the anal region. they concluded that the cats have whiskers for balance, catâs tongue is used to groom herself, cats have similar dental structure but some things are different, and akito was a female since she had a smooth anal region. akito is a fat and blind cat. really dead too. the anatomy of a cat is very similar to humanâs anatomy. thatâs it.
reference:
Cat anatomy. (n.d.). Retrieved October 11, 2016, from https://en.wikipedia.org/wiki/Cat_anatomy
Comparative anatomy. (n.d.). Retrieved October 11, 2016, from https://www.britannica.com/science/comparative-anatomy
diagrams and labels: link
thin skin under a microscope 1 & 2
(the numbers are linked^)
thick skin video & image
(the words âvideoâ and âimageâ are both linked)