Deck 11: Muscles of the Body

Question 1

Use the diagram above to answer the following questions.
Identify the letter that indicates the serratus anterior.

A) A
B) B
C) C
D) D
E) E

Answer 1

A

Question 2

Use the diagram above to answer the following questions.
Identify the letter that indicates the zygomaticus major and minor.

A) A
B) B
C) C
D) D
E) E

Answer 2

C

Question 3

Use the diagram above to answer the following questions.
Identify the letter that indicates the serratus anterior.

A) A
B) B
C) C
D) D
E) E

Answer 3

E

Question 4

Use the diagram above to answer the following questions.
Identify the letter that indicates the masseter.

A) A
B) B
C) C
D) D
E) E

Question 5

Use the diagram above to answer the following questions.
Identify the letter that indicates the pectoralis minor.

A) A
B) B
C) C
D) D
E) E

Question 6

The rectus femoris demonstrates this type of muscle fascicle arrangement.

A) parallel
B) bipennate
C) convergent
D) unipennate
E) circular

Question 7

The pectoralis major is an example of a muscle with this type of fascicle arrangement, that tends to be triangular in shape.

A) parallel
B) bipennate
C) convergent
D) unipennate
E) circular

Question 8

Use the diagram above to answer the following questions.
Identify the letter that indicates the rectus abdominis.

A) A
B) B
C) C
D) D
E) E

Question 9

Use the diagram above to answer the following questions.
Identify the letter that indicates the aponeurosis of the external oblique.

A) A
B) B
C) C
D) D
E) E

Question 10

Use the diagram above to answer the following questions.
Identify the letter that indicates the orbicularis oris.

A) A
B) B
C) C
D) D
E) E

Question 11

The fascicles of the biceps brachii muscle have this type of arrangement.

A) bipennate
B) convergent
C) fusiform
D) multipennate

Question 12

Use the diagram above to answer the following questions.
Identify the letter that indicates the sternocleidomastoid.

A) A
B) B
C) C
D) D
E) E

Question 13

Use the diagram above to answer the following questions.
Identify the letter that indicates the epicranial aponeurosis.

A) A
B) B
C) C
D) D
E) E

Question 14

Use the diagram above to answer the following questions.
Identify the letter that indicates the deltoid.

A) A
B) B
C) C
D) D
E) E

Question 15

Which type of fascicle arrangement shortens the least?

A) bipennate
B) circular
C) fusiform
D) parallel

Question 16

Use the diagram above to answer the following questions.
Identify the letter that indicates the pectoralis major.

A) A
B) B
C) C
D) D
E) E

Question 17

The muscle fascicle arrangement of the orbicularis oris is best characterized as

A) parallel.
B) bipennate.
C) convergent.
D) unipennate.
E) circular.

Question 18

Use the diagram above to answer the following questions.
Identify the letter that indicates the internal oblique.

A) A
B) B
C) C
D) D
E) E

Question 19

Use the diagram above to answer the following questions.
Identify the letter that indicates the linea alba.

A) A
B) B
C) C
D) D
E) E

Question 20

Use the diagram above to answer the following questions.
Identify the letter that indicates the temporalis.

A) A
B) B
C) C
D) D
E) E

Question 21

A muscle with fascicles that insert into only one side of the tendon is categorized as

A) parallel.
B) bipennate.
C) convergent.
D) unipennate.
E) circular.

Question 22

Visceral muscle differs in its embryonic origin from skeletal muscle because it is derived from

A) myotomes.
B) myotomes and somitomeres.
C) somitomeres.
D) splanchnic mesoderm.

Question 23

Shin splints result from damage to which muscle or muscle group?

A) soleus
B) hamstrings
C) tibialis anterior
D) adductors of the thigh

Question 24

The main "swallowing" muscles are the

A) esophageal muscles.
B) pharyngeal constrictors.
C) buccinators.
D) masseters.

Question 25

The muscles in the anterior compartment of the arm are innervated by the ________ nerve.

A) median
B) musculocutaneous
C) radial
D) ulnar

Question 26

The biceps brachii operates in a ________-class lever system.

A) first
B) second
C) third
D) fourth

Question 27

A prime mover for flexion of the arm at the shoulder is the

A) pectoralis major.
B) deltoid.
C) latissimus dorsi.
D) coracobrachialis.

Question 28

This arrangement of fascicles tends to provide the greatest range of motion (shortening distance), though not the greatest power.

A) parallel
B) bipennate
C) convergent
D) unipennate
E) circular

Question 29

Which set correctly matches the function of the designated muscle compartment?

A) anterior thigh-thigh extension
B) lateral leg-foot eversion
C) medial thigh-thigh abduction
D) posterior leg-dorsiflexion

Question 30

The biceps brachii has this fascicle arrangement, which maximizes the range of motion possible.

A) parallel
B) bipennate
C) convergent
D) unipennate
E) circular

Question 31

A prime mover of arm abduction is the

A) sternocleidomastoid
B) deltoid
C) trapezius
D) pectoralis major

Question 32

When the diaphragm contracts, it

A) opens a hole in its center through which air flows.
B) aids in expiration.
C) becomes flatter.
D) becomes more dome-shaped.

Question 33

The extensor muscles of the upper limb lie almost exclusively in the ________ region of that limb.

A) posterior
B) anterior
C) medial
D) lateral

Question 34

Based on their embryonic origin, which set of muscles is most closely related?

A) chewing muscles-tongue muscles
B) extrinsic eye muscles-pharyngeal constrictors
C) suprahyoid muscles-infrahyoid muscles
D) trapezius-erector spinae

Question 35

The gastrocnemius operates in a ________-class lever system.

A) first
B) second
C) third
D) fourth

Question 36

The muscles in the ________ compartment of the thigh are innervated by the femoral nerve.

A) anterior
B) posterior
C) medial
D) lateral

Question 37

The tongue muscles are innervated by the ________ nerve.

A) facial
B) trigeminal
C) hypoglossal
D) vagus

Question 38

The muscles in the medial compartment of the thigh

A) extend the leg
B) flex the leg
C) abduct the thigh
D) adduct the thigh

Question 39

The arrangement of muscle fascicles in a sphincter is

A) parallel.
B) bipennate.
C) convergent.
D) unipennate.
E) circular.

Question 40

The prime mover for trunk flexion when doing a sit-up is the

A) rectus abdominis.
B) erector spinae.
C) splenius capitis.
D) splenius cervicis.

Question 41

A prime mover for flexing the forearm at the elbow is the

A) triceps brachii.
B) brachialis.
C) brachioradialis.
D) anconeus.

Question 42

A muscle inserting on the pisiform bone of the wrist is

A) the flexor carpi ulnaris.
B) a lumbrical.
C) the extensor digitorum.
D) the pronator teres.

Question 43

Which muscle inserts on the lesser tubercle of the humerus?

A) subscapularis
B) supraspinatus
C) biceps brachii
D) deltoid

Question 44

A muscle that originates along most of the shaft of the femur is the

A) iliopsoas.
B) adductor magnus.
C) vastus intermedius.
D) semitendinosus.

Question 45

A muscle that originates on the medial epicondyle of the humerus is the

A) flexor carpi radialis.
B) short head of the triceps.
C) brachioradialis.
D) extensor digitorum.

Question 46

The deepest muscle of the anterior abdominal wall is the

A) external oblique.
B) transversus abdominis.
C) internal oblique.
D) rectus abdominis.

Question 47

A prime mover for extension of the forearm at the elbow is the

A) brachialis.
B) triceps brachii.
C) biceps brachii.
D) anconeus.

Question 48

The muscle that originates on the anterior superior iliac spine is the

A) rectus femoris.
B) sartorius.
C) pectineus.
D) psoas major.

Question 49

A muscle that originates on both the spine of the scapula and the clavicle is the

A) pectoralis major.
B) trapezius.
C) deltoid.
D) subclavius.

Question 50

A muscle that originates on the lateral surfaces of the superior eight ribs is the

A) rectus abdominis.
B) subclavius.
C) serratus anterior.
D) subscapularis.

Question 51

A muscle that opens the mouth is the

A) orbicularis oculi.
B) buccinator.
C) orbicularis oris.
D) digastric.

Question 52

A nursing infant develops a powerful sucking muscle that adults also use for whistling. This muscle is the

A) platysma.
B) buccinator.
C) zygomaticus.
D) masseter.

Question 53

An individual with damage to the radial nerve would be unlikely to contract the

A) biceps brachii.
B) coracobrachialis.
C) extensor digitorum.
D) pronator teres.

Question 54

An important function of the soleus muscle is to

A) extend the leg at the knee.
B) evert the foot.
C) invert the foot.
D) plantar flex the foot.

Question 55

Which of these is not a criterion for naming a muscle?

A) action
B) color
C) location
D) shape

Question 56

The main function of the flexor retinaculum in the wrist is to

A) reduce friction.
B) hold blood vessels.
C) bind the radius, ulna, and carpals together.
D) prevent the flexor tendons from moving anteriorly when all fingers are flexed.

Question 57

A muscle that attaches to the skeleton at the pubic crest and the xiphoid process and costal cartilages of ribs 5-7 is the

A) rectus abdominis.
B) external oblique.
C) transversus abdominis.
D) internal intercostal.

Question 58

The agonist for jaw closure is the

A) digastric (posterior head).
B) digastric (anterior head).
C) medial pterygoid.
D) masseter.

Question 59

A synergist muscle can do all of the following except

A) add extra force to a movement.
B) hold a bone in place to create a stable base for the prime mover.
C) prevent inappropriate extra movements that might otherwise be produced.
D) reverse a particular movement caused by the prime mover.

Question 60

The prime movers of jaw closure and biting are the

A) temporalis and buccinator muscles.
B) masseter and temporalis muscles.
C) buccinator and masseter muscles.
D) temporalis and lateral pterygoid muscles.

Question 61

The spine of which vertebra is most prominent in the posterior midline of the neck?

A) C₁
B) C₂
C) C₇
D) T₂

Question 62

Which of the following structures is not used to define the borders of femoral triangle?

A) the anterior superior iliac spine
B) the sartorius
C) the inguinal ligament
D) the adductor longus

Question 63

A prime mover for lateral rotation at the shoulder is the

A) pectoralis major.
B) supraspinatus.
C) teres major.
D) teres minor.

Question 64

Which of the following structures does not lie within the anterior triangle of the neck?

A) submandibular gland
B) infrahyoid muscles
C) subclavian artery
D) suprahyoid muscles

Question 65

To avoid damaging important structures in the lower limbs of infants, intramuscular injections are administered into the

A) gluteus maximus.
B) gluteus medius.
C) gluteus minimus.
D) vastus lateralis.

Question 66

The latissimus dorsi originates primarily on the

A) linea alba.
B) humerus.
C) vertebral column.
D) clavicle.

Question 67

The lateral border of the cubital fossa is formed by the

A) brachioradialis.
B) pronator teres.
C) tendon of the biceps brachii.
D) median nerve.

Question 68

The popliteal fossa is located

A) posterior to the knee.
B) anterior to the knee.
C) in the groin.
D) in the groove between the big toe and the second metatarsal.

Question 69

When you stand on your tiptoes, the lateral and medial bulges seen in your calf are the

A) soleus.
B) heads of the gastrocnemius.
C) hamstrings.
D) Achilles tendon.

Question 70

Which vertebra lies at the intersection of the supracristal lines and is used as the site to insert a needle to obtain a sample of cerebrospinal fluid (CSF)?

A) C₇
B) T₁₂
C) L₁
D) L₄

Question 71

A prime mover for leg extension at the knee is the

A) rectus femoris.
B) sartorius.
C) semimembranosus.
D) biceps femoris.

Question 72

Which of the following statements concerning surface anatomy is false?

A) It studies internal organs as they relate to surface landmarks.
B) It serves as a basis for a standard physical examination.
C) It is best studied in cadavers.
D) It is used to take pulses, insert tubes, make surgical incisions, and perform other clinical procedures.

Question 73

Which of the following structures does not lie in the posterior triangle of the neck?

A) accessory nerve
B) cervical plexus
C) trunks of the brachial plexus
D) external carotid artery

Question 74

The jugular notch is a notch in the

A) clavicle.
B) manubrium.
C) common carotid artery.
D) hyoid bone.

Question 75

A prime mover of foot inversion is the

A) flexor accessorius.
B) abductor hallucis.
C) tibialis posterior.
D) soleus.

Question 76

The best site to listen to lung sounds is

A) the triangle of auscultation.
B) the anterior triangle.
C) the posterior triangle.
D) over the xiphoid process.

Question 77

A muscle that inserts on the lesser trochanter of the femur is the

A) iliopsoas.
B) adductor magnus.
C) vastus intermedius.
D) semitendinosus.

Question 78

Which forearm muscle is absent in about 30% of individuals?

A) extensor pollicis
B) flexor carpi ulnaris
C) palmaris longus
D) pronator quadratus

Question 79

This muscle inserts into the central tendon of the perineum.

A) bulbospongiosus
B) coccygeus
C) levator ani
D) superficial transverse perineal

Question 80

A prime mover for extending the arm at the shoulder is the

A) latissimus dorsi.
B) pectoralis major.
C) triceps brachii.
D) serratus anterior.