Ch.4 Tissues Flashcards
What are tissues made of and what kind of cells are they made up of?
Cells. Made up by the same cells with the same structure and function.
The 4 types of adult tissues
Epithelial
Connective
Nervous
Muscular
How many germ layers do tissues have?
3
What are the three germ layers?
Ectoderm, mesoderm, endoderm
What kind of tissue does ectoderm become?
Epithelial and nervous tissue
What tissues does Mesoderm become?
Epithelial, muscular (cardiac,smooth, and skeletal), and adult connective tissues
What tissue does the endoderm become?
Epithelial tissue
What germ tissue does bone come from?
Mesoderm
What germ tissue does Epithelial tissue come from?
Ectoderm, mesoderm and endoderm
What germ layer does nervous tissue come from?
Ectoderm
Define differentiate
Un specialized cells coming together to form specialized cells
What are cell junctions?
Holds cells together and helps them
Communicate
This type of cell junction seals the cells making sure fluids can’t seep out. Like the lining of your stomach.
Tight junction
What kind of protein does tight junctions have?
Transmembrane proteins
What type of cell junction gives strength to the tissues when pulled or stretched?
Desmosome
What kind of tissues are desmosome?
Cardiac and epithelial (skin)
How do desmosomes give strength to their tissues?
Interlocking transmembrane glycoproteins that anchor the cell.
What is the name for a desmosome transmembrane glycoprotein?
Cadherin
What kind of cell junction locks the bottom of the cell into the basement membrane?
Hemideosome
What kind of tissues are hemidesmosome?
Epithelial
What is a hemidesmosome transmembrane glycoprotein called?
Integrin
What kind of cell junction allows communication between cells, allowing ions, signals and fluids to travel between them?
Gap junctions
What tissues to gap junctions service?
Epithelial, muscular and nervous tissue
How do gap junctions work?
They use connexons that are made up of hollow tubes called connexins that let things travel between the cells