Unraveling Muscle Fascicle Patterns: Why Pectoralis Major Stands Apart

Which of the following is unique to the muscles of facial expression? a. They all originate from the scalp musculature. b. They insert onto the cartilage found around the face. c. They only insert onto the facial bones. d. They insert into the skin.

Which of the following helps an agonist work? a. a synergist b. a fixator c. an insertion d. an antagonist

Which of the following statements is correct about what happens during flexion? a. The angle between bones is increased. b. The angle between bones is decreased. c. The bone moves away from the body. d. The bone moves toward the center of the body.

Which is moved the least during muscle contraction? a. the origin b. the insertion c. the ligaments d. the joints

Which muscle has a convergent pattern of fascicles? a. biceps brachii b. gluteus maximus c. pectoralis major d. rectus femoris

A muscle that has a pattern of fascicles running along the long axis of the muscle has which of the following fascicle arrangements? a. circular b. pennate c. parallel d. rectus

Which arrangement best describes a bipennate muscle? a. The muscle fibers feed in on an angle to a long tendon from both sides. b. The muscle fibers feed in on an angle to a long tendon from all directions. c. The muscle fibers feed in on an angle to a long tendon from one side. d. The muscle fibers on one side of a tendon feed into it at a certain angle and muscle fibers on the other side of the tendon feed into it at the opposite angle.

The location of a muscles insertion and origin can determine ________. a. action b. the force of contraction c. muscle name d. the load a muscle can carry

Where is the temporalis muscle located? a. on the forehead b. in the neck c. on the side of the head d. on the chin

Which muscle name does not make sense? a. extensor digitorum b. gluteus minimus c. biceps femoris d. extensor minimus longus

Which of the following terms would be used in the name of a muscle that moves the leg away from the body? a. flexor b. adductor c. extensor d. abductor

Which of the following is a prime mover in head flexion? a. occipitofrontalis b. corrugator supercilii c. sternocleidomastoid d. masseter

Where is the inferior oblique muscle located? a. in the abdomen b. in the eye socket c. in the anterior neck d. in the face

What is the action of the masseter? a. swallowing b. chewing c. moving the lips d. closing the eye

The names of the extrinsic tongue muscles commonly end in ________. a. -glottis b. -glossus c. -gluteus d. -hyoid

What is the function of the erector spinae? a. movement of the arms b. stabilization of the pelvic girdle c. postural support d. rotating of the vertebral column

Which of the following abdominal muscles is not a part of the anterior abdominal wall? a. quadratus lumborum b. rectus abdominis c. interior oblique d. exterior oblique

Which muscle pair plays a role in respiration? a. intertransversarii, interspinales b. semispinalis cervicis, semispinalis thoracis c. trapezius, rhomboids d. diaphragm, scalene

What is the linea alba? a. a small muscle that helps with compression of the abdominal organs b. a long tendon that runs down the middle of the rectus abdominis c. a long band of collagen fibers that connects the hip to the knee d. another name for the tendinous inscription

The rhomboid major and minor muscles are deep to the ________. a. rectus abdominis b. scalene muscles c. trapezius d. ligamentum nuchae

Which muscle extends the forearm? a. biceps brachii b. triceps brachii c. brachialis d. deltoid

What is the origin of the wrist flexors? a. the lateral epicondyle of the humerus b. the medial epicondyle of the humerus c. the carpal bones of the wrist d. the deltoid tuberosity of the humerus

Which muscles stabilize the pectoral girdle? a. axial and scapular b. axial c. appendicular d. axial and appendicular

The large muscle group that attaches the leg to the pelvic girdle and produces extension of the hip joint is the ________ group. a. gluteal b. obturator c. adductor d. abductor

Which muscle produces movement that allows you to cross your legs? a. the gluteus maximus b. the piriformis c. the gracilis d. the sartorius

What is the largest muscle in the lower leg? a. soleus b. gastrocnemius c. tibialis anterior d. tibialis posterior

The vastus intermedius muscle is deep to which of the following muscles? a. biceps femoris b. rectus femoris c. vastus medialis d. vastus lateralis

What effect does fascicle arrangement have on a muscles action?

Movements of the body occur at joints. Describe how muscles are arranged around the joints of the body.

Explain how a synergist assists an agonist by being a fixator.

Describe the different criteria that contribute to how skeletal muscles are named.

Explain the difference between axial and appendicular muscles.

Describe the muscles of the anterior neck.

Why are the muscles of the face different from typical skeletal muscle?

Describe the fascicle arrangement in the muscles of the abdominal wall. How do they relate to each other?

What are some similarities and differences between the diaphragm and the pelvic diaphragm?

The tendons of which muscles form the rotator cuff? Why is the rotator cuff important?

List the general muscle groups of the shoulders and upper limbs as well as their subgroups.

Which muscles form the hamstrings? How do they function together?

Which muscles form the quadriceps? How do they function together?