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Questions and Answers
What is the study of tissues called?
Which of the following are types of tissues in the body? (Select all that apply)
What type of tissue is responsible for protection and secretion?
Epithelial tissue
Connective tissue has a good blood supply.
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Match the types of intercellular junctions with their characteristics:
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What is the function of muscle tissue?
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Epithelial tissues lack _____ vessels.
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Which of the following shapes does epithelial tissue have? (Select all that apply)
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Epithelial cells readily divide and heal rapidly.
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What helps medications cross the blood-brain barrier?
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Study Notes
Histology
- The study of tissues is called histology.
Types of Tissues
- There are four main types of tissues in the body: epithelial, connective, muscle, and nervous.
Epithelial Tissue
- Epithelial tissue is responsible for protection and secretion.
- It lacks blood vessels.
- Epithelial tissue can have various shapes, including squamous, cuboidal, and columnar.
- Epithelial cells have a high rate of division and can heal quickly.
Connective Tissue
- Connective tissue has a good blood supply.
Intercellular Junctions
- Tight junctions prevent leakage between cells.
- Desmosomes provide strong adhesion between cells.
- Gap junctions allow for communication between cells.
Muscle tissue
- Muscle tissue enables movement.
Blood-Brain Barrier
- The blood-brain barrier is selectively permeable, limiting what substances can cross from the bloodstream into the brain.
- Medications can more easily cross the blood-brain barrier if they are fat-soluble.
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