Chapter 9 Practice Questions
The quadriceps femoris group DOES NOT include
Biceps femoris
Muscles that move the thumb will be named
Pollicis
Which muscle is named for its shape?
Pronator quadratus
The superior aspect of the pubic bones is the origin of:
Rectus abdominis
NOT adduct thigh?
Rectus femoris
Which does NOT adduct the thigh?
Rectus femoris
Standing on tiptoes is an example of a:
Second class lever system
Medial to lateral muscles of hamstring group
Semimembranous, semitentinosus, biceps femoris
NOT a muscle involved in movement of tongue to manipulate food when chewing and pushing bolus of food into throat?
Stylohyoid
Damage to the stylohyoid, mylohyoid, and geniohyoid impairs:
Swallowing
Which type of muscle work together with the agonist?
Synergist
Which works with agonist?
Synergist
NOT a muscle of the rotator cuff:
Teres major
From superficial to deep, the three muscles of the lateral abdominal wall are:
external oblique, internal oblique, transversus abdominis
Muscular walls of the thorax and abdomen are composed of
oblique and rectus muscles
John experienced a cut that severs the tendon that attaches the insertion of the gastrocnemius muscle. As a result of this injury, what action is difficult for him to perform?
plantar flexion
Which muscle forms anterior surface of neck?
platysma
which extends the forearm:
triceps brachii
All extend thigh and flex leg EXCEPT
vastus lateralis
The ability to produce muscle tension allow skeletal muscle to produce body movement known as an:
Action
Damage to the pectoralis major would interfere with a person's ability to
Adduct arm at shoulder
The levator ani muscle group inserts on the
Coccyx
A first class lever has the fulcrum situated farther from the point of the applied force, with the load to be moved in between.
False
A first-class lever has the fulcrum situated farther from the point of applied force, with load to be moved in between
False
Prime mover of elbow flexion is biceps brachii
False
When climbing stairs, the gluteus maximus and hamstring group muscles work as antagonists.
False
What best describes Fusiform skeletal muscle structure
Fusiform muscles tend to be thicker in their belly and taper at their ends.
Abducts the thigh, medically rotated thigh and pelvis of moving limb during walking
Gluteus minimus
Synergist to adductor group
Gracilis
What is the fulcrum of a lever system?
Joint at which movement occurs
Which muscle is a powerful agonist of addiction, medial rotation, and extension of the arm?
Latissimus dorsi
Works as antagonist to orbicularis oculi
Levator palpebrae superioris
Bone that is NOT attached to sternocleidomastoid muscle?
Mandible
A lever system works at a mechanical advantage when:
The fulcrum is located farther from the applied force
In the human body what is the fulcrum in a lever system?
The fulcrum is the joint at which movement occurs.
Which extends the forearm:
Triceps brachii
An angonist is a muscle that provides most of the force required for a given movement
True
The soleus is a synergist of the gastrocnemius during plantar flexion.
True
The union of the muscles of the quadriceps femoris group forms the quadriceps tendon, which continues to form the patellar ligament
True
The deltoid is responsible for __________.
abducting the arm
Triceps brachii and biceps brachii perform opposing actions and are classified as:
antagonists
The masseter and temporalis muscles provide much force for:
chewing
Muscles with a triangular shape, such as the pectoralis major muscle in the chest, typically have a __________.
convergent fascicle arrangement
What joint serves as the fulcrum when triceps brachii moves the forearm?
elbow joint
Damage to the trapezius would cause a person to have difficulty:
extending the head
What type of muscle performs an anchoring function by holding a bone in place?
fixator
Flexes and abducts hand?
flexor carpi radialis
Where does the infraspinatus insert?
greater tubercle of humerus
iliiopsoas in formed by the union of two muscles known as
iliacus and psoas major
Where does the mentalis muscle insert?
skin of chin
What is the proper position of the erector spinae muscles situated from medially to laterally relative to the axis of the vertebral column?
spinalis, longissimus, iliocostalis