Journal 3

Dictionary

1. Unilocular- Having or consisting of, or characterized by only one loculus or cavity, single chambered/ one cell one nuclei.
2. Multilocular- Having or consisting of, or characterized by multiple loculi or cavities, multi-chambered/ multiple cells multiple nuclei.
3. Cancellous- Having low density and strength but high surface area, of the kind that fills the inner cavity of long bones
4. Hemopoietic-pertaining to the formation of blood or blood cells; "hemopoietic stem cells in bone marrow"
5. Collagenase-any enzyme that catalyzes the hydrolysis of collagen and gelatin
6. Parafollicular-Parafollicular cells (also called C cells) are cells in the thyroid that produce and secrete calcitonin.
7. Spicule-A small, pointed epidermal appendage.
8. Totipotential -capable of developing into a complete organism or differentiating into any of its cells or tissues
9. Pluripotential-not fixed as to developmental potentialities ; especially : capable of differentiating into one of many cell types or capable of affecting more than one organ or tissue
10. Multipotential -having the potential of becoming any of several mature cell types.

Histology Journal 2

Reflections

This week in histology we covered cartilage and connective tissue. These are very interesting topics and the way they were presented was very interesting. I like the group activities because it gave me a chance to expresses my understanding of different topics to the class and also hear what my class mates deemed important. These activities also gave the class a chance to clear up any misunderstandings right away. I am a visual learner as well as a kinesthetic learner so the slide shows help my understanding visually. However, I would like to have optional worksheets that covered work that would be important for examination purposes. This class and what was learnt this week contributes to my future aspirations of becoming a pediatrician because I would need to know this information for medical purposes. I found this week in histology to be very interesting.

Histology Journal 1

Investigations:

This week I choose to investigate Paget’s disease. This is a disease that involves abnormal bone breakdown and reformation resulting in a deformity. The two sources I picked for this topic was http://www.nlm.nih.gov/medlineplus/ency/article/000414.htm this source stated that the cause of the disease may be a fungal infection early in life or a hereditary trait. In this disease, when the bone reforms it is bigger, but weaker and is filled with new blood vessels. Symptoms may include Bone pain (may be severe and persistent), Bowing of the legs and other visible deformities, Enlarged head, Fractures, Headache, Hearing loss, joint pain or stiffness, Neck pain, Reduced height, Skull deformities and Warmth of skin over the affected bone. However, Most patients have no symptoms.

MedlinePlus, 27 August 2009, National Library of Medicine, Paget’s disease, 10 September 2009, http://www.nlm.nih.gov/medlineplus/ency/article/000414.htm

My other source, Advanced Therapy of Breast disease was a book that covered Paget’s disease in the breasts. It stated that the most widely accepted hypothesis for the origin of Paget’s cells in the breast was that they are derived from an underlying mammary adenocarcinoma and reach the epidermis of the nipple by direct invasion, by intraepidermal metastasis or as an extension of malignant cells.

Breslin, Tara M., Fushen Xu, Paget’s Disease, Ontario, BC Decker Inc., 2004.

These are good sources however the second source did not go as in depth as I wanted and did not look into the science of the cells as I was looking for.

Reflection:

This class definitely fits into my future long-term career goals. I am learning information that pertains to my future aspiration of becoming a pediatrician. I am still a visual and kinesthetic learner. So far, I learnt about the importance of epithelial cells as well as the different techniques for viewing tissues. This class is making me think on a different level and bringing my thinking down to the level of the cell. I think of various aspects of biology such as tissues from the viewpoint of the cells that make them up.