Muscle / Nervous Tissue Flashcards
Main function is to contract, or shorten, making movement possible
Muscle tissue
Pumps blood under involuntary control
Cardiac muscle
Conduct action potentials (electrical signals)
Nervous tissue
Transmit information
Neurons
Three major parts of neurons
Cell body
Dendrites
Axon
Site of general cell functions; contains nucleus
Cell body
Receive stimuli leading to electrical changes
Dendrites
Send action potential to another neuron
Axon
Surround the neurons; support cells
Glia
A thin sheet or layer of tissue that covers a structure
Tissue membrane
Called as cutaneous membrane
Skin
External tissue membrane
Cutaneous membrane
3 major categories of internal tissue membranes
Mucous
Serous
Synovial
Formed by connective tissue
Synovial membrane
3 types of serous membrane
Pleural
Pericardial
Peritoneal
Lungs
Pleural
Pericardial
Heart
Abdominopelvic cavity
Peritoneal
Occurs when tissue is damaged
Inflammation
Can result from the intermediate and painful events that can lead to trauma
Inflammation
Results when the agent is responsible for an injury is not removed or something else interferes with the healing process
Chronic inflammation
An unpleasant but beneficial occurence in human body when tissues are damaged
Inflammatory response
5 signs of inflammation
- Redness / rubor
- Heat / calor
- Swelling / tumor
- Pain / dolor
- Disturbance of Function / Function laessa
Phagocytic WBC that fights infection
Neutrophil
The substitution of viable cells for dead cells
Tissue repair
Normal function is usually restored; no scar formation
Regeneration
Self renewing; cells that continue to divide throughout the life
Stem cells
Causes scar production and the loss of some tissue function
Fibrosis / replacement
What is the tissue process?
…
Dried clot
Scab
Contain threadlike protein, binds the wounds together and stop the bleeding
Clot
