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Tissue Definitions

Crash Course Tissue #1 (nervous & muscle)

QuestionAnswer
What are the purposes of nervous tissues? To provide control & communication
What are the purposes of muscle tissues? To provide movement. They can also contact, which is super handy for everyday tasks
What are the purposes of Epithelial Tissues? To line, cover, & protect the body
What is the purpose of connective tissue? To provide support
Histology definition Study of tissues
What is the purpose of staining & dying cells? To make them more visible & have more variation under microscopes
Basic nervous tissues carry out what function? Sensing stimuli & sending electrical impulses
What cells make up nervous tissues? Neurons & glial cells
What are neurons? Cells that conduct the electrochemical nerve impulses that let you do anything
What 3 parts make up neurons? The cell body, the dendrites, & the axon
What is the cell body of a neuron? The neurons life support. It contains everything a normal cell would; a nucleus, mitochondria, and DNA
What are the dendrites of a neuron? They look like the trees they're named after & collect signals from other cells to send back to the soma. They are the listening end of a neuron.
What is the axon of a neuron? A long rope-like part that acts as the transmission cable.It carries messages to other neurons, and muscles, and glands
What are the purpose of glial cells? The act as the neuron's pit crew, providing support, insulation, & protection, and tethering them to blood vessels
What does the term "well-vascularized" mean? It means that there is a lot of blood coming & going
What types of muscles tissues are there? Skeletal, cardiac, & smooth
What is the purpose of skeletal muscle? It's what attaches to all the bones in your skeleton, supporting you & keeping your posture in line
The term "striations" refers to what? A striped appearance
What is the purpose of cardiac muscle tissue? It forms the walls of your heart & its regular contractions are what makes blood pump through your circulatory system
Where is cardiac muscle found? In the heart (its only found in the heart)
Where is smooth muscle tissue found? It lines the walls of most of your blood vessels and hollow organs
Why is smooth muscle tissue called smooth muscle tissue? Because it lacks striations and are arranged to form tight-knit sheets
Created by: kresidori29
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