MUSCLES . Form is For Function. We See This in bones when we look at a vertebrae Processes are for attachment of muscles, tendons and ligaments. Openings such as foramen are for nerves and blood vessels. .
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Their characteristics depend on which type of muscle they are found: skeletal, muscle or cardiac.
Which Type of Muscle are we referring to here??Muscle Cell =Muscle Fiber= Myocyte: But BEWARE…ALL Muscles cells are NOT ALIKE!!
Sarcoplasmic reticulum – specialized endoplasmic reticulum
Plus: The Neuromuscular Junction: where it all happens: This IS Muscle Physiology!
Will the I band reappear? When?
What causes the I band to dissapear?The Case of the Shrinking Sarcomere
Find the T-Tubules
Name of Muscle: Biceps Brachii
Origin:Scapula of Shoulder girdle
Insertion: Proximal Radius
Action: Flexes elbow and supinates ( to turn backward = supinate ) forearm
All skeletal muscles have fascicles
Fascicle arrangement allows
different functions of muscles
Determined by fascicular arrangement
Skeletal muscle shortens to 70%
of resting length
Figure 11–1c, d, e
Acetylcholine receptors at the neuromuscular junction.
NT can’t bind and stimulate AP to muscle.