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Histology Review Questions
Terms in this set (37)
What are the 4 Basic Tissue Types and examples?
1.Connective Tissue = Bone
2. Nervous Tissue = Brain
3. Muscle Tissue = Cardiac Muscle
4. Epithelial Tissue = Skin
What is the function of Connective Tissue?
Connective = Provides structural support and connects other tissues together.
What is the function of Nervous Tissue?
Nervous = Detect sensations, process and integrate information, and controls body movement and body functions.
What is the function of Muscle Tissue?
Muscle = Body Movement, heart contractions, and Contractions of the intestine, uterus, and bladder.
What is the function of Epithelial Tissue?
Epithelial = Provide protection, Produces secretions, and filter substances.
What are the types of epithelial cell shapes?
1. Squamous = flat
2. Cuboidal = square
3. Columnar = Tall
What are the 3 types of arrangements of epithelial cells?
Where is transitional epithelium found?
Lines the bladder and the uterus
Where can squamous epithelium be found?
Lines lungs, capillaries, and make up skin.
What is the difference between microvilli and Cilia?
Microvilli - Finger-like projections formed from the cell membrane itself. They increase the surface area of the cell to enhance the movement of substances in and out of the cell. - Collectively called the Brush Boarder
Cilia - Hair like appendages on the cell membrane that move substances across the cell surface.
What type of tissue is the most abundant in the body?
Areolar connective tissue.
Give 2 examples of dense connective tissues?
Regular Dense Connective= Same direction of fibers
Irregular Dense = Different directions, found in ligaments and tendons.
What is the stroma and where do you find it?
= Reticular Connective Tissue - The stroma is a 3D framework in solid organs, it holds the cells in position. Found in spleen lymph and vessels.
What are the 3 types of cartilage and where might you find each?
1. Hyaline = Bone ends and articular surfaces
2. Elastic = in Pinnae and epiglotis
3. Fibrocartilage = Between vertebrae, knee joints, and pelvis.
What are the major functions of bones?
Structural support, protection, and production of RBC's
What are the two major types of bone?
Cancellous and cortical
What is the name of the place you find the osteocytes located?
Found in the lacunae
What is the name of the little canals that connect the osteocytes?
What is the function of osteoclasts?
Phagocytosize bony tissue and repair. They make calluses into clasts which remove material.
What is blood matrix composed of?
Plasma = Water, protein, nutrients, hormones, and electrolytes.
What is the function of nervous tissue?
Receive and transport signals
What is the axon?
Axon = send the signal
What is the dendrite?
Receive the signals
Which way is the electrochemical impulse going?
From Dendrite to axon
What are the cells that support the neurons
What are the three muscle types? Which are striated and which are non-striated?
1. Smooth = Non-striated = involuntary
2. Cardiac = Striated = Involuntary = Movement in length and width.
3. Skeletal = Striated = Voluntary
What are the specialized proteins in muscle tissue?
Actin and Myosin
What unique histological feature is found in cardiac muscle?
What is Histology?
The study of the microscopic structure of tissues
What is Histopathology?
The study of the changes in the microscopic structure of tissues associated with disease
What is the function of collagenous fibers?
strong, thick, and resist pulling = in tendons and ligament.s
What has all 4 tissues types in it?
Describes the structure of Connective Tissue
- Cells widely separated by non-living extracellular matrix.
-Collagenous, Reticular, and Elastic Fiber make up the Matrix.
Describes the structure of Cartilage
Tough but fexible tissue with:
- No blood Vessles
- No Nerves
Describes the structure of Bone
-Stores calcium and Phosphorus
- Bone matrix = Osteoid
- Cells = Ostoeblats (Immature), clasts, cytes (Mature).
Describes the structure of Blood
Carries nutrients and gasses to the cells
Removes waste materials from cells.
What is an Organ system?
A group of body parts that work together to perform complex functions.
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