Mod 4: Tissues Flashcards
What are the four types of tissues that the body contains
Epithelial tissue, connective tissue, muscle, nerve tissue
What tissue contracts to produce movement
Muscle
What tissue covers or lines body surfaces
Epithelial tissue
The outer layer of the skin, the walls of capillaries, and kidney tubules are part of what tissue?
Epithelial tissue
The tissue that connects and supports parts of the body; may also transport and store materials
Connective tissue
What tissue include bone, cartilage, and adipose tissue
Connective tissue
What tissue generates and transmits impulses to regulate body function
Nerve tissue
What are the key functions of the epithelial tissue?
Protection, absorption, filtration, and secretion
What are the different classifications of epithelial cells?
Squamos, cuboidal, columnar
How are epithelial cells classified?
By cell shape and cell layers
What is the structure of a simple epithelia?
Every cell touches the basement membrane
What is the structure of a stratified epithelia?
Some cells stack on top of other cells and the upper layers of the cells don’t touch the basement membrane
In tissue development, what are the three layers the cells organize into?
Ectoderm, mesoderm and endoderm
What is the process called when each layer gives rise to the different types of tissues?
Differentiation
What is the function of the ectoderm?
outer layer - Gives rise to epidermis and nervous system
Function of the endoderm?
inner layer - Produces mucous membrane of respiratory tract, thyroid gland, secretory parts of pancreas
Function of the mesoderm?
middle layer - Gives rise to connective and muscle tissue
What’s the function of exocrine glands?
Secretes products into ducts
Function of the endocrine glands
Secretes hormones into blood
What is the most widespread, and the most varied of all the tissues?
Connective tissue
What is the role of neurons?
Conduct nervous impulses
What is the role of neuroglia?
Protect and assist neurons
What is the soma of the neuron, and what does it contain?
Large cell body – contains the nucleus and the organelles
Where are the dendrites found, and what is their role?
Multiple extend from the soma -Receive impulses from other cells, which they then transmit to the soma
Where is the axon found, and what is the role of the axon?
Neuron contains a single, long nerve fibre - axon - which transmits signals to other cells
What is the key component of the extracellular matrix of connective tissue?
The framework into which the cells of tissue are embedded
What type of tissue lies underneath almost all epithelia and connects tissues and organs together?
Areolar
*What are the basic classifications of connective tissue?
Fibrous connective tissue, Cartilage, bone, and blood
Fibrous connective tissue’s maybe either
Dense or loose
Loose connective tissues are further Divided as being
Areolar tissue, adipose tissue, reticular issue
