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Histology Exam 1 With Questions And Correct Answers Latest Version
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Histology Exam 1 With Questions And Correct Answers Latest Version
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Histology Exam 1 With Questions AndCorrect Answers Latest Version
Histology Answer: - study of tissues at the microscopic level
- histo = tissue
- Cyto = cells
What is the difference between a tissue and organ? Answer: - an organ is a collection of tissues
- an example of an organ is the heart, it is made up of a collection of tissues including cardiac
muscle, connective tissue and nervous tissue
What kind of doctor uses histology? Answer: - a pathologist
Why is histology taught in medical school? Answer: - it is a building block
- ex: if you are going to be an orthopedic surgeon, you will need to understand the underlying
tissues
- in this profession you may need to look at an infection in the bone under a microscope for example
What are the four major tissue types? Answer: - epithelial
- connective
- muscle
- nervous
Epithelial Tissue Answer: - lines organs and vessels
- used as a protective barrier
,- squamous, stratified, columnar, pseudo-stratified
- secrete mucus and nutrients
- avascular meaning there are not blood vessels through the tissue
Connective Tissue Answer: - provides support for organs and other tissues
- blood, bone, adipose
- blood provides cells to organs
- vascular, does have a blood supply
- has a lot of extracellular material; extracellular matrix
Nervous Tissue Answer: - irregular structure of cells
- dendrites if we are looking at neurons
- in the brain and spinal cord and peripherally
- conducts impulses
Muscle Tissue Answer: - striated in appearance in cardiac and skeletal muscle tissue
- smooth muscle is not striated
- characteristic of movement
- individual cells are called muscle fibers
Tissue Classification Answer: - Morphologic: epithelial and connective
- Functional: muscle (contraction), nervous tissue (transmit electrical signal)
- can use both of these classifications for most tissues
Classifying Epithelial Tissue Answer: - cells are close together
, - at a free surface, at a duct
- ex: interior lining of gall bladder
Classifying Connective Tissue Answer: - cells that make up connective tissue are separated by a
matrix material, often collagen
Classifying Muscle Tissue Answer: - always has longitudinal arranged fibers (cells)
- they are pressed together similar to epithelial, but DO NOT line surfaces
Classifying Nerve Tissue Answer: - cells are further apart, there is extracellular material
separating the cells
Studying Histology Answer: - look at the name on the side
- the direction of the sample
- what kind of stain was used on the section
Looking at Digital Images or Slides Answer: - start at the lowest magnification to figure out
where you want to move on the slide
- when we look at a type of tissue you have to look at a lot of images of the tissue to master it
What technology advanced the fields of histology and cell biology? Answer: - the development
of microscopes and specifically the lenses
- there was a lot of advancement in lenses that were used to look at fabric for drapes and clothing
Advantages of traditional histology? Answer: - no glitches
- 3D nature of examining glass slides
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