011 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 musculoskeletal lever and leverage system is based on three fundamental principles:
fulcrum, resistance and effort . Describe each principle with the use of an example.
Fulcrum – muscle acts on a rigid rod of bone that moves around a fixed point (axis).
Resistance – weight of the muscle and rigid rod and perhaps an object.
Effort - work done by muscle contraction.
Slide #16
7.
From the list below identify the example from the body that illustrates a first class lever system.
a)
b)
c)
d)
e)
Foot, ankle, calf
Upper and lower arm
Upper leg
Head neck and back
All of the above
Slide #18, 19, 20.
8. In the list above choose the example from the body that illustrates a second class lever.
a)
9.
In the list above choose the example from the body that illustrates a third class lever.
b)
10. Name the following fascicle arrangements
a) parallel
b) fusiform
c) circular
d) triangular
e) unipennate
f) bipennate
g) multipennate
Slides 21, 22.
11. This next questions is an application question, the above fascicle arrangements also have
examples in the body. Give examples for each type of muscle arrangement a) through g)
a)
b)
c)
d)
e)
f)
g)
Sternocleidomastoid
Bicep
Muscles around the eye or mouth (obicularis oculi/oris)
Deltoid
Extensor digitorum longum (any muscle of the hands)
Rectus femoris
Deltoid
12. All of the following statements are true about fascicle arrangements except:
a) A contracting muscle shortens to about 70% of its normal length
b) Muscles with shorter fibers have a greater range of motion
c) A shorter fiber can contract as forcefully as a longer fiber
d) All are true
Slide # 21, 22
13. All of the following statements are true about muscles arranged in opposing pars at joints
except:
a) Prime mover or agonist contracts to cause the desired action.
b) Antagonist stretches and yields to prime mover
c) Synergist contract to stabilize nearby joints
d) Fixators stabilize the origin of the antagonist.
Slide 23
14. The insertion and orientation of all the muscles of the arm allow for which of the following
typical arm movements:
a) Flex, extend, evert
b) Flex, extend, adduct, abduct
c) Flex, extend, hyperextend, adduct, abduct
d) Flex, extend, invert
Slide 24,25
15. The insertion and origin of the bicep brachii is
a)
Humerus to ulna
b) Scapula to radial tuberosity
c) Scapula to humerus
d) Humerus to radius
Slide # 26, 27
16. Anconeus muscle of the arm is used to:
a) Extend the elbow and the shoulder
b) Flex the elbow and the shoulder
c) To extend the elbow
d) To flex the elbow
Slide #, 28, 29
17. Carpal Tunnel Syndrome is the painful compression of the medial nerve due to the narrowing
passageway under:
a) Tendon of the flexor pollicis longus
b) Tendon of the flexor digitorum profundus
c) Tendon of the flexor retinaculum
d) Tendon of the flexor digitorum superficialis
Slide # 32, 33
18. The intrinsic muscles of the hand allow for all of the following movement:
a) opposition
b) flexion
c) extenstion
d) abduction
e) adduction
f) all of the above
g) none of the above
Slide 34.
19. All of the following statements are true about the iliopsoas muscle
a) It extends the hip joint
b) Arises from the lumbar vertebrae and ilium
c) Inserts and the greater trochanger
d) All of the above
Slide 35, 36.
20. The quadricepts have four heads to the muscle three of them have the same origin. Which
body part does the three heads of the muscle originate from.
a)
b)
c)
d)
Patella
Greater trochanter
Femur
Anterior superior iliac spine.
Slide 35, 36
21. Which of the following pairs of muscles are not an adductor muscle set of the thigh?
a) Pectineus and adductor longus
b) Adductor brevis and gracilis
c) Adductor magnus and rectus femoris
d) All of the above are adductor muscles of the thigh.
Slide 37, 38.
22. There are four muscles listed pick the set of three that have an insertion point on the calcaneus.
1. Gastronemius
2. Plantaris
3. Soleus
4. Tibialis posterior
a)
b)
c)
d)
1,2,3
1,2,4
2,3,4
1,3,4
SLdie 39, 40.
23. Shin splint syndrome diagnosis is made off of what common symptom:
a) Pain and soreness of the posterior tibia
b) Pain and soreness of the anterior tibia
c) Pain and soreness of the anterior/posterior tibia
d) Pain and soreness of the anterior/posterior fibula
Slide # 41, 42
24. The foot is a very intricate structure that has multiple layers of muscle. How many layers are
there?
a) 2 layers
b) 3 layers
c) 4 layers
d) 5 layers
Slide #43, 44