Shared Flashcard Set

Details

Histology Exam 1
Lecture 9 (Muscle Tissue)
9
Other
Not Applicable
06/09/2008

Additional Other Flashcards

 


 

Cards

Term
Skeletal Fibers
Definition
- multinucleated
- striated due to arrangement of myofibril proteins
- contains sarcoplasmic reticulum
- has satellite cells
- do not undergo regeneration or have mitotic capability
- induced to proliferate in response to stress or trauma
Term
sarcoplasmic reticulum
Definition
- stores, releases and reaccumulates calcium ions essential for skeletal muscle contraction
Term
Myofibril Arrangements
Definition
- A band
- I band
- Z line
Term
cardiac muscle
Definition
- mononucleated
- striated
- connected by intercalated discs
- contract w/o nerve stimulation
- no satellite cells
- believed to have stem cells
Term
Intercalated Discs
Definition
- fascia adherens
- desmosomes
- gap junctions
Term
smooth muscle
Definition
- found in walls of blood vessels, organs
mononucleated
- not striated
- communicate via gap junctions
- most efficient in regenerating
Term
hypertrophy
Definition
- increase in size of muscle fibers
Term
hyperplasia
Definition
- increase in number of muscle fibers
Term
disuse vs. denervation atrophy
Definition
- shrinkage when not used
- tied to nerve damage
Supporting users have an ad free experience!