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In this unit, you will be using microscopes. Please complete these steps to revisit how to properly use a microscope.
Nervous Tissue:
MICROSCOPE INTRODUCTION
Step 1: Label the parts of a microscope on the picture your teacher gave you.
Parts of a microscope practice quiz: USE THIS NOW TO LABEL THE PARTS OF A MICROSCOPE
https://www.biologycorner.com/microquiz/#
Step 2: Watch the video tutorial on how to use a microscope.
Step 3: Take both of these quizzes and show your results to your teacher when you are done.
MICROSCOPE QUIZ 1
Take this microscope quiz in class and show your results to your teacher:
https://www.biologycorner.com/quiz/qz_microscope.html
MICROSCOPE QUIZ 2
Take this in class and show your results to your teacher:
http://www.proprofs.com/quiz-school/story.php?title=microscope-parts-functions
TISSUES - An Introduction to Histology
Tissue ID practice: https://www.youtube.com/watch?v=NDWYZdow87I
In this unit you will learn about how cells come together and specialize to form different tissues in the body. You will get a lot of microscope practice finding these tissues and you will learn about their features as you draw or photograph them and label their characteristic features. Lastly, you will learn to recognize the pattern and organization of each tissue type and identify features that histologists use to diagnose diseases such as cancer.
Learning Objectives:
Describe the four major groups of tissues in the body (nervous, epithelial, connective, and muscle and their general characteristics; give examples of each - know which group each of the specific tissues belong to.
Describe the functional difference between simple epithelium and stratified epithelium and give an example of a place in the body where you would find each and what function it serves there.
Be able to correctly identify the following tissue types under a microscope: blood, simple squamous epithelium, stratified squamous epithelium, bone, hyaline cartilage, 3 muscle tissues, nervous tissue, simple columnar, simple cuboidal, transitional epithelium, pseudo-stratified ciliated columnar epithelium, dense irregular, loose areolar, adipose.
Be able to identify features in each of the tissue types above and a function (or characteristic) they help perform (e.g. abundant watery matrix in cartilage tissue helps cartilage to reduce friction at the joints in the skeleton; or lamella in bone contains the calcium/phosphate salts that make bone hard and resistant to crushing; striations in muscle cell are due to the...why are they arranged this way???)
Some words to know (know their structure and their function
Great photo identification practice for tissues - go through this before the test!
http://quizlet.com/2621787/histology-lab-photo-quiz-flash-cards/
Practice Quiz for Epithelial - great website:
http://biologycorner.com/anatomy/histology/
A decent website about Connective tissues:
http://www.siumed.edu/~dking2/intro/ct.htm
Great photo identification practice:
http://quizlet.com/2621787/histology-lab-photo-quiz-flash-cards/
Great pictures and practice test:
http://www.gwc.maricopa.edu/class/bio201/Histology/HistoRev0a.htm
Crash course videos to review Tissues: (the first one has about 5 mins of background info)
Crash course Tissues # 2: https://www.youtube.com/watch?v=i5tR3csCWYo
Crash course Tissues # 3 - connective tissues : https://www.youtube.com/watch?v=D-SzmURNBH0
Crash course Tissues # 4 -muscle: https://www.youtube.com/watch?v=Jvtb0a2RXaY
An alternative to Crash Course: https://www.youtube.com/watch?v=LNNMYwF7dHg
What are HeLa cells?
SKIN - The Integumentary System
In this unit you will learn about the different layers in the skin and their features as well as the accessory organs that contribute to skins many functions. You will learn about human skin color and why indigenous groups of people have evolved to have different skin colors over time. We will look briefly at the different types of skin cancers and other skin disorders/diseases. You will also learn what constitutes a 1st, 2nd or 3rd degree burn and a bit about treatment and healing of burns.
In the picture above can you find the blood vessels of the dermis? The sweat gland? the sebaceous glands? The erector pili muscle? The deep touch receptor? The light tough receptors? The stratum corneum and stratum basal of the epidermis? The dermis? The hair follicle? The subcutaneous fat? (Do you notice the irregular collagen fibers in the dermis? Elastin not shown.) NOTE: There is a pain receptor creeping into the base of the epidermis...most textbooks say they do not extend that high which is why you can sew a needle through your epidermis. There are definitely no pain receptors in the stratum corneum!!!
My lecture on the SKIN:
VIDEO LINKS
Introduction to the skin video shown in class: https://www.youtube.com/watch?v=Tgs_YjbqYw8
HHMI Skin Deep - The Evolution of Human Skin Color: https://www.youtube.com/watch?v=hFw8mMzH5YA
Video shown about the ABCDE's of identifying skin cancer (esp. melanoma) https://www.youtube.com/watch?v=qsG99rI8W68
Video about burn classification: https://www.youtube.com/watch?v=Up5z-e37v-A
Video about scarring: https://www.youtube.com/watch?v=ucRMDdw82yw
Short HHMI video explaining how we get our skin color: https://media.hhmi.org/biointeractive/interactivevideo/skinidoc/
Skin Learning Objectives for 2017
1. Be able to label the layers of skin, the primary tissue type(s) in each and the features and organs within them (similar to Fig. 6.6, p171 in your text book) --- (erector pili muscle, receptors, etc.)
2. Name and describe the different layers of the epidermis – stratum corneum verses statum basale. Explain why these layers are so different. Figure 6.3 p. 165
3. Describe the types of glands in the skin and their functions (eccrine, apocrine, and sebaceous)
4. Explain how the skin plays a role in regulating body temperature. (Be able to fill in any missing blanks in a similar diagram to Figure 6.12 in your book)
5. State the location and role(s) of the following proteins in the skin: Keratin, collagen, & elastin. (What does UV do to the later two over time?)
6. Identify characteristics of 1st, 2nd, and 3rd degree burns (including which are likely to lead to scarring and why) and explain why serious burns are life threatening.
7. State the difference between carcinomas and melanomas in terms of prevalence, severity, and how to recognize them. (Know the ABCDE’s, too) (p. 168-169 of textbook)
8. Describe the characteristics and causes of acne, blisters, and fingerprints.
9. Explain the theory discussed by Nina Jablonksi in the article, Skin Deep (Scientific American, 2002) about the patterns of indigenous skin colors around the globe. Demonstrate your understanding of her argument for why humans have their indigenous skin tones - (what is the selective pressure evolution wise?). Demonstrate your understanding of the following vocabulary words: melanin, UVA, UVB, melanocytes, vitamin D, folate (folic acid), cholesterol, DNA, genetics, natural selection, cancer, fetal development, latitude, indigenous, natural selection. Explain why the Inuit people in North America are an exception to this trend!
OTHER RESOURCES:
An overview of the Integumentary System -Bozeman Science:
https://www.youtube.com/watch?v=z5VnOS9Ke3g
Some additional details: https://www.youtube.com/watch?v=BVIIgHyNRdI
More about sensation and temperature regulation (start about 3 mins in): https://www.youtube.com/watch?v=fXIcwm1oqQw
A decent Quizlet on the anatomy of skin - picture form:
http://quizlet.com/1992321/skin-model-lab-review-flash-cards/
A good article about the skin from National Geographic:
http://science.nationalgeographic.com/science/health-and-human-body/human-body/unmasking-skin/
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