histology unit 2 seminar plan for tonight unit 3: histology project topic selection unit 2...
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Histology Unit 2 Seminar
Plan for tonight
Unit 3: Histology Project Topic Selection
Unit 2 Self-Assessment: Selected Questions (8)
Marfan Syndrome
Osteogenesis Imperfecta
Unit 3 HISTOLOGY PROJECT PART 1:Topic, Outline and References
Topic Proposal: The topic should be on any of the systems covered in part 1 of this course (Histology) and be either a tissue or organ. This outline must be uploaded to dropbox by the end of Unit 3.
For the tissue or organ that you selected, you should:
• Describe the histological characteristics of the tissue or organ.• Correlate the structural characteristics of the tissue with their
function.• Discuss the importance of histological characteristics of the tissue or
organ to the body function as a whole.References: The document should also include the references that you used (at least 3 other than your book). For information on APA reference style please go to the Kaplan Writing Center.
UNIT 2: Self-Assessment Question1Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
UNIT 2: Self-Assessment Question1Classify the following epithelial tissue marked with the arrows in the image below are:
Layer of flattened cells.
Basement membrane
What types of tissues are lined with this type of epithelium?
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
UNIT 2: Self-Assessment Question1Classify the following epithelial tissue marked with the arrows in the image below are:
Layer of flattened cells.
Basement membrane
What types of tissues are lined with this type of epithelium?
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
Tissues that need broad membranes for molecular diffusion and filtration.
Kidney Bowman’s Capsules and Glomeruli.
Lung Alveoli
UNIT 2: Self-Assessment Question 2Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
UNIT 2: Self-Assessment Question 2Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
What types of tissues are lined with this type of epithelium?
Basement membrane
Layer of cells as tall as they are wide.
UNIT 2: Self-Assessment Question 2Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
What types of tissues are lined with this type of epithelium?
Basement membrane
Layer of cells as tall as they are wide.
Protection, water-electrolyte balance (requiring active transport).
Covering of ovaries
Kidney Collection Tubules
UNIT 2: Self-Assessment Question 3Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
UNIT 2: Self-Assessment Question 3Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
Basement membrane
Single layer of cells attached to basement membrane. Uneven location of nuclei makes cells appear to be stratified.
What types of tissues are lined with this type of epithelium?
UNIT 2: Self-Assessment Question 3Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
Basement membrane
Single layer of cells attached to basement membrane. Uneven location of nuclei makes cells appear to be stratified.
What types of tissues are lined with this type of epithelium?
Secretion and absorption
Lining of trachea and upper respiratory tract.
UNIT 2: Self-Assessment Question 4Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
UNIT 2: Self-Assessment Question 4Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
What types of tissues are lined with this type of epithelium?
Basement membrane
Multiple cell layers with cells furthest from the basement membrane becoming squamous.
UNIT 2: Self-Assessment Question 4Classify the following epithelial tissue marked with the arrows in the image below are:
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Stratified epithelium
Pseudostratified epithelium
What types of tissues are lined with this type of epithelium?
Protection:
Lining of esophagus (non-keratinized)
Protection and dehydration prevention:
Skin (keratinized)
Basement membrane
Multiple cell layers with cells furthest from the basement membrane becoming squamous.
UNIT 2: Self-Assessment Question 5This muscle type has nuclei located at the periphery of the cell.Skeletal muscle
Cardiac muscle
Smooth muscle
None of the above
UNIT 2: Self-Assessment Question 5This muscle type has nuclei located at the periphery of the cell.Skeletal muscle
Cardiac muscle
Smooth muscle
None of the above
Hints!
Mus
cle
Fib
er
Nuc
lei
UNIT 2: Self-Assessment Question 6This muscle type is the least able to regenerate in adulthood.Skeletal muscle
Cardiac muscle
Smooth muscle
None of the above
UNIT 2: Self-Assessment Question 6This muscle type is the least able to regenerate in adulthood.Skeletal muscle
Cardiac muscle
Smooth muscle
None of the above
This one you either know it or you don’t.
UNIT 2: Self-Assessment Question 7Epithelial tissue consists of:Aggregated polyhedral cells
Elongated contractile cells
Fixed and wandering cells
Neurons with elongated processes
Glial cells with elongated processes
UNIT 2: Self-Assessment Question 7Epithelial tissue consists of:Aggregated polyhedral cells
Elongated contractile cells Muscle cells
Fixed and wandering cells Cells of the immune system
Neurons with elongated processes Nerve cells
Glial cells with elongated processes Support cells for nerves
UNIT 2: Marfan SyndromeAbout Marfan Syndrome
Marfan syndrome is a disorder of the connective tissue. Connective tissue holds all parts of the body together and helps control how the body grows. Because connective tissue is found throughout the body, Marfan syndrome features can occur in many different parts of the body.
Marfan syndrome features are most often found in the heart, blood vessels, bones, joints, and eyes. Sometimes the lungs and skin are also affected. Marfan syndrome does not affect intelligence.
About 1 in 5,000 people have Marfan syndrome. This includes men and women of
all races and ethnic groups.
ReferenceNational Marfan Foundation (2011). Retrieved online from http://www.marfan.org/marfan/2280/About-Marfan-Syndrome
UNIT 2: Marfan SyndromeWhat body systems are affected?Heart and Blood Vessels (Cardiovascular)* Enlarged or bulging aorta, the main blood vessel that carries blood from the heart (aortic dilation or aneurysm)* Separation of the layers of the aorta that can cause it to tear (aortic dissection)* “Floppy” mitral valve (mitral valve prolapse – MVP)
Bones and Joints (Skeletal system) * Long arms and legs* Tall and thin body type* Curvature of the spine (scoliosis or kyphosis)* Chest sinks in (pectus excavatum) or sticks out/pigeon breast (pectus carinatum)* Long, thin fingers* Flexible joints* Flat feet* Teeth that are too crowded
Eyes (Ocular system) * Severe nearsightedness (myopia)* Dislocated lens of the eye* Detached retina* Early glaucoma* Early cataracts
Other Body Systems * Stretch marks on the skin, not explained by pregnancy or weight gain * Sudden collapse of the lung (spontaneous pneumothorax)* Swelling of the sac around the spinal column (dural ectasia). This is found with CT or MRI scans of the back
ReferenceNational Marfan Foundation (2011). Retrieved online from http://www.marfan.org/marfan/2320/Features
UNIT 2: Marfan Syndrome
Normal Medial Aortic Wall Marfan Medial Aortic Wall
Fibrosis (Collagen)
Layer
Spongiosa (Loose
Connective Tissue)
Layer
Ventricularis (Elastin) Layer
Ventricularis (Elastin) Layer
UNIT 2: Osteogenesis imperfectaBrittle Bone Disease
CauseDefect in gene that produces Type I Collagen.
SymptomsAll people with OI have weak bones, which makes them susceptible to fractures. Persons with OI are usually below average height ( short stature). However, the severity of the disease varies greatly.
The classic symptoms include: * Blue tint to the whites of their eyes (blue sclera) * Loose joints * Multiple bone fractures * Flat feet * Early hearing loss (deafness) * Poor teeth
Symptoms of more severe forms of OI may include: * Bowed legs and arms * Kyphosis (excess curvature of spine) * Scoliosis (S-curve (sideways curve) of spine)