Chapter 11 Self Quiz

The muscle that forms the major portion of the cheek is the:

  

Masseter

  

Temporalis

  

Zygomaticus major

  

Buccinator



What are the three superficial posterior plantar flexors of the leg that insert on the calcaneus by way of the Achilles tendon.

  

Gastrocnemius, soleus, and plantaris

  

Quadriceps, gastrocnemius, and fibularis longus

  

Soleus, popliteus, and extensor digitorum longus

  

Plantaris, quadriceps, and popliteus



Longer fibers in a muscle result in a greater range of motion.

   True
   False


When flexing the forearm, the biceps brachii acts as the prime mover and the triceps brachii acts as the antagonist.

   True
   False


Which of the following muscles does not flex the thigh?

  

Rectus femoris

  

Gracilis

  

Sartorius

  

Iliacus

  

Tensor fascia latae



The iliotibial tract is composed of the tendon of the gluteus maximus muscle, the deep fascia that encircles the thigh, and the tendon of which of the following muscles?

  

Iliacus

  

Gluteus minimus

  

Tensor fascia latae

  

Adductor longus

  

Vastus lateralis



In order for movement to occur:
1. Muscles generally need to cross a joint
2. Contraction of the muscle will pull on the origin
3. Muscles that move a body part cannot cover the moving part
4. Muscles need to exert force on tendons that pull on bones
5. The insertion must act to stabilize the joint

  

1, 2, 3, 4, and 5

  

1, 2, 3 and 4

  

1, 2 and 4

  

1, 3, and 4

  

3 and 4



Because you did not do well on your recent anatomy and physiology exam, you leave the classroom pouting. Which one of these muscles are you using?

  

Mentalis

  

Orbicularis oris

  

Risorius

  

Levator labii superioris

  

Zygomaticus minor



The rectus femoris has fascicles arranged on both sides of a centrally positioned tendon. This pattern of fascicle arrangement is:

  

Unipennate

  

Fusiform

  

Multipennate

  

Parallel

  

Bipennate



The rectus abdominis muscle has fibers perpendicular to the midline of the abdomen.

   True
   False


The site of muscle attachment to a stationary bone is the:

  

Insertion

  

Belly

  

Origin

  

Antagonist



Muscles that stabilize the origin of prime mover muscles so that they can move more efficiently are known as:

  

Antagonists

  

Fixators

  

Synergists

  

Compartments



Strabismus is a condition in which there are improperly aligned eyeballs due to lesions in either the oculomotor or abducens nerves.

   True
   False


Which of the following incorrectly matches the muscular disorder with its symptoms?

  

Inguinal hernia; rupture of a portion of the inguinal area of the abdominal wall resulting in protrusion of part of the small intestine.

  

Contracture; permanent shortening of a muscle due to nerve damage and scar tissue development.

  

Carpal tunnel syndrome; caused by repetitive movement of the arm over the head that results in inflammation of the supraspinatus tendon.

  

Bell's palsy; paralysis of facial muscles as a result of damage to the facial nerve.



The hamstring refers to the muscle group including the:

  

Latissimus dorsi, trapezius, deltoids

  

Biceps femoris, semitendinosus, semimembranosus

  

Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

  

Subscapularis, supraspinatus, infraspinatus, teres minor



The trapezius muscle is referred to as the "swimmer's muscle".

   True
   False


The levator ani is a:

  

Pelvic floor muscle

  

Muscle of mastication

  

Muscle that moves the scapula

  

Flexor of the foot



The pronator and supinator muscles of the arm are antagonists.

   True
   False


A lever in which the fulcrum is between the effort and the load is a third-class lever.

   True
   False




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