Tissues Flashcards
Types of tissues and their functions
What are the four MAIN types of tissue?
Epithelial Tissue, Muscle Tissue, Nervous Tissue, Connective Tissue
What are the main types of muscle tissue?
Skeletal, Cardiac, Smooth Muscle tissue
What is Muscle tissue function?
Allow for movement and posture
What is cardiac muscle function?
Circulates blood
Maintains blood (hydrostatic) pressure
What are cardiac muscle characteristics?
Striations
Branching
Intercalated disk (Acts as glue)
What is skeletal muscle function?
-Moves or stabilizes the position of the skeleton
-Guards the entrences and exits to the digestive, respiratory, and urinary tract
-Generates heat
-Protects the internal organs
What is skeletal muscle characteristics?
-Nuclei are located at the periphery
-Striations
What is smooth muscle function?
-Moves food, urine, and reproductive tract secretions
-Controls diameter of respiratory passage ways
-Regulates diameter of blood vessels
-Smooth muscles are involuntary
What is smooth muscle characteristics?
Has a round purple nuclei
What cells does nerve tissue have?
What does nerve tissue do?
-Neurons
-Glial cells
Nerve tissue “communicates”
What are characteristics of nerve tissue?
-Nuclei located at the periphery
-Striations
What is epithelial tissue?
(skin) a sheet of cells that covers an exposed surface or lines the internal cavity. Classified by number of layers and cell shape.
What is simple epithelial tissue?
Single layer of cells
What is stratified epithelial tissue?
Multiple layers of cells
What is psudostratified?
Looks like multiple layers but is compose of only one single layer
What is simple squamous function?
-Redues friction
-Controls vessel permeability
-Performs absorption and secretion
What is simple cuboidal function?
-Limited protection
-Secretion
-Absorption
What is simple columnar function?
-Protection
-Absorption
-Secretion
What is pseudostratified columnar epithelium function?
-Protection
-Secretion/absorption -Microvilli
What are Pseudostratified characteristics ?
-Looks like more than one cell layer
-Nuclei are not in a straight line
-Brush boarder (Cilia, microvilli)
-Almost always present
What is transitional epithelium?
Permits expansion and recoil after stretching
What are transitional epithelium characteristics?
-Looks like balloons or bubbles
-Free edge
What are the accessory structures?
(Epithelium)
-Cilia
-Microvilli
What is loose connective tissue function?
-Support
-Nutrients (Vascularized)
Locations of loose connective tissue?
-Skin
Organs such as:
-liver
-Spleen
-Kidney
Tubes such as:
-Arteries
-Veins
-Gut tube
What is Dense connective tissue function?
Withstanding tension
Locations of dense connective tissue?
-Skin
-Tendons and ligaments
-Walls of arteries, bronchial tubes, gut tube
What is bone connective tissue function?
For support
Locations of bone connective tissue?
Skeleton
What is blood connective tissue function?
-Delivers nutrients
-Removes waste
-Provides immune support
Locations of Blood connective tissue?
-Arteries
-Veins
-Capillaries
