Chapter 9 Flashcards
(12 cards)
3 types of muscles in the body?
Cardiac, skeletal, and smooth
What is aponeurosis?
A long, thin sheet that connects muscle to muscle
4 Properties of Muscle Tissue
Excitability, contractility, elasticity, extensibility
Functions of skeletal muscle?
Skeletal movement, maintain body posture/position, support/protect soft tissues, regulate entrance/exit of material, maintain body temperature
Skeletal muscle is…
Surrounded by epimysium ——> contains muscle fascicle
Muscle fascicle is…
Surrounded by perimysium —–> contains muscle fibers
Muscle fiber is…
Surrounded by endomysium ——> contains myofibrils
What transmits the action potential?
T-tubule
A first class lever is…
The applied force and resistance are on opposite sides of fulcrum.
AF. F. R.
Extension of head
A second class lever…
The resistance lies between the applied force and the fulcrum.
AF. R. F.
Flexion of calf muscle
A third class lever…
The force is applied between the resistance and the fulcrum
R. AF. F.
Flexion of the forearm
The cross bridge formation is…
The myosin heads bind to the active sites
