010 Muscular System
1.
Describe the origin and insertion as it relates to muscular attachment.
_________________________
Origin – the muscle attachment at the bone that does not move
when the muscle shortens.
_________________________
Insertion - the muscle attachment to the bone that moves
when the muscle shortens (can have more than one)
Slide #1
2.
Name the muscle that is the primary muscle responsible for the movement of the head?
a)
b)
c)
d)
Trapezius
Bicep
Quadriceps
Sternocleidomastoid
Slide #7
3.
Name the four pairs of thin muscles of the Abdomen.
1.
rectus abdominis
2.
external oblique
3.
internal oblique
4.
transverse adominis
Slide #11
4.
List the muscles used in breathing and discuss the function of each muscle group.
Inspiration – external intercostals life the ribs and the diaphragm contracts and the diaphragms dome
shape flattens out.
Expiration – internal intercostals are used to aid in forced expiration.
Slide #9, #10, #15
5. It is the connective tissue rectus sheath that connects all three lateral muscles of the abdominal
to the midline.
a.
b.
c.
d.
Linea alba
Aponeurosis
Rectus ligamentus
Surperficial fascia
Slide #13
6.
The lever and leverage system of muscles stress three fundamental principles these principles
are: fulcrum, resistance and effort. Describe using examples each of these three principles.
Fulcrum – it is the fixed point of movement for a specific bone/muscle action.
Resistance – the weight caused by an object and body part acting on a specific bone/muscle .
Effort – work done by muscle contraction to support the resistance experienced.
Slide #16
7.
The following list below contains an example of a first class lever system. Choose the correct
response.
a)
b)
c)
d)
e)
Upper and lower arm
Head and Neck
Foot, Ankle, Calf
Upper leg
All of the Above
8.
From the list above please provide the example of a second class lever system.
c)
9. From the list above please provide the example of a third class lever system.
a)
Slides #18, 19, 20