how does the skeleton move?
what is forearm flexion?
bending the elbow
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how does the skeleton move?
what is forearm flexion?
bending the elbow
what is insertion?
what is the origin?
what is a prime mover/agonist?
what is a synergist/fixator?
what is an antagonist?
to extend the knee, a group of four muscles called the quadriceps femoris in the anterior compartment of the thigh are activated (and would be called the __ of knee extension). However, to flex the knee joint,__ an ____ set of muscles called the hamstrings is activated.
*these terms would be reversed for the opposing action*
If you consider the first action as the knee bending, the hamstrings would be called the ____ and the quadriceps femoris would then be called the ____
if the biceps brachii (anterior compartment of arm) is the agonist and the triceps brachii (posterior compartment of arm) is the antagonist, what is the movement?
biceps brachii flexes the forearm and the triceps brachii extends the forearm.
if the hamstrings (posterior compartment of thigh) are the agonist and the quadriceps (anterior compartment of thigh) are the antagonist, what is the movement?
hamstrings extend the leg and the quadriceps extend the leg.
true or false: are there skeletal muscles that do not pull against the skeleton for movements?
true.
true or false: are there skeletal muscles in toungue and external urinary and anal sphincters?
true.
what is a fascicle?
in what ways can skeletal muscles be classified based on the pattern of the fascicle arrangement?
parallel, circular, convergent and pennate.
how are fascicles arranged in parallel muscles?
what is fusiform?
what are circular muscles also called?
sphincters
what occurs to circular muscles when they relax and contract?
when you contract the circular muscle around your mouth, what happens?
what does orb refer to?
what does oris refer to?
what does oculi refer to?
what is a convergent?
what could the attachment point for a convergent muscle be?
what is an example of a convergent muscle and why?
what is a pennate muscle?
true or false: the muscle fibers in a pennate muscle can only pull straight?
false.
what are the three types of pennate muscles?
what is a unipennate muscle?
example: extensor digitorum of forearm.
what is a bipennate muscle?
what is a multipennate muscle?
what is abduct?
what does the connection of the muscle to the bone determine?