★ Must-know
📌 Animal tissues are classified as epithelial, muscle, nervous, and connective tissue.
Further detail
Epithelial tissue has closely packed cells arranged on a basement membrane.
Muscle tissue consists of elongated cells or muscle fibers that can contract.
Nervous tissue contains neurons with numerous extensions and glial cells that, among other roles, nourish neurons.
Connective tissue has loosely arranged cells and abundant intercellular substance containing protein fibers.
★ Must-know
📌 Simple squamous epithelium consists of flat cells and enables the transport of substances such as oxygen and carbon dioxide.
Further detail
📌 Simple cuboidal epithelium has cube-shaped cells and secretes and absorbs substances.
1. Which four broad tissue types are used to classify animal tissues?
2. Which feature distinguishes nervous tissue from the other major animal tissue types?
3. Which epithelial type is suited to transporting oxygen and carbon dioxide across a surface?
Which four categories classify animal tissues?
Epithelial, muscle, nervous, and connective tissues.
What shape are the cells of simple squamous epithelium?
Flat.
What substances can simple squamous epithelium transport?
Oxygen and carbon dioxide.
How does stratified squamous epithelium protect the body?
It helps prevent pathogens from entering the body.
What are the cell shape and nuclear position of skeletal striated muscle fibers?
They are long and cylindrical, with many nuclei at the edges.
How is skeletal striated muscle contraction usually controlled?
It is almost always voluntary.
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