Exam 3

The masseter muscle originates on the __________. a. inferior border of the zygomatic arch only b. medial and lateral surfaces of the maxilla and the inferior and superior border of the zygomatic arch c. medial surfaces of the maxilla and the zygomatic arch as well as the inferior border of the zygomatic arch d. medial surface of maxilla, but not the zygomatic arch

The masseter is innervated by the _____________ branch of the trigeminal nerve. a.lingual b. maxillary c.ophthalmic d.mandibular

The temporalis muscle is innervated by the mandibular branch of the __________. a. optic nerve b. trochlear nerve c. trigeminal nerve d. abducens nerve

The temporalis muscle originates on the __________ and inserts on the __________. a. temporal process; mandibular fossa b. zygomatic arch; temporal fossa c. temporal fossa; coronoid process of mandible d. temporal fossa; zygomatic arch

sternocleidomastoid

The external intercostals elevate the rib cage during __________. a. inspiration b. expiration c. both expiration and inspiration d. neither inspiration nor expiration

The origin of the external obliques includes ribs __________. a. seven through twelve b. five through twelve c. six through twelve d. eight through twelve

The actions of the internal intercostals are most important during __________. a. forced inspiration b. forced expiration c. normal inspiration d. normal expiration

The actions of the internal obliques include __________. a. compression of the rib cage to assist in forced expiration b. compression of the rib cage to assist in forced inspiration c. compression of the abdomen to assist in forced expiration d. compression of the abdomen to assist in forced inspiration

The origins of the rectus abdominus muscle are on the __________. a. ileum bone b. sacral bone c. pubic bone d. ischial bone

The transversus abdominus muscle is innervated by the __________. a. left scapular nerve b. intercostals nerves c. thoracic nerve d. inguinal nerve

The muscle that generates the most power during elbow flexion is the __________. a. brachialis b. biceps brachii c. triceps brachii d. brachioradialis

The prime mover of elbow extension is the __________. a. biceps brachii b. anconeus c. triceps brachii d. brachialis

At the completion of supinator action, the palm is turned __________. a. anteriorly b. medially c. laterally d. posteriorly

Movement of the elbow joint movement is limited to __________. a. extension and pronation b. flexion and extension c. pronation and supination d. supination and flexion

Movement of the forearm includes __________. a. flexion and extension b. extension and pronation c. supination and flexion d. pronation and supination

The lateral rotators act on the __________. a. lumbar vertebrae b. sacrum c. os coxae d. femur

The piriformis originates on the __________ and inserts on the __________. a. sacrum; lesser trochanter of the femur b. ischium; lesser trochanter of the femur c. sacrum; greater trochanter of the femur d. ischium; greater trochanter of the femur

The prime mover of hip extension is the __________. a. adductor magnus b. pectineus c. gracilis d. gluteus maximus

The tensor fascia latae is involved in hip __________. a. abduction b. extension c. lateral rotation d. adduction

To allow for flexion, the __________ unlocks the knee joint. a. semimembranosus b. sartorius c. popliteus d. biceps femoris

The majority of the fibers of the gluteus maximus insert onto the __________. a. inferior border of the os coxae b. ileotibial tract c. superior border of the os coxae d. gluteal tuberosity

The gluteus maximus is the most powerful muscle during __________. a. extension b. lateral rotation c. medial rotation d. flexion

Both heads of the biceps femoris muscle __________. a. extend the leg at the knee b. extend the hip c. flex the leg at the knee d. flex the hip

The long head of the biceps femoris muscle originates on the __________. a. anterior superior iliac spine b. posterior superior iliac spine c. iliac crest d. ischial tuberosity

The biceps femoris is located in the __________. a. anterior thigh b. anterior arm c. posterior thigh d. posterior arm

The main action of the fibularis longus is to __________. a. dorsiflexes the foot b. invert the foot c. plantar flexes the foot d. evert the foot

The origins of the lateral head of the gastrocnemius muscle are the __________. a. patellar surface and anterior surface of the femur b. medial condyle and posterior surface of the femur c. patellar surface and posterior surface of the femur d. lateral condyle and posterior surface of the femur

The gastrocnemius muscle is innervated by the __________. a. ulnar nerve b. tibial nerve c. plantar nerve d. fibular nerve

The two heads of the gastrocnemius muscle converge to insert onto __________. a. the posterior surface of the tibia b. the middle phalanx of digit one c. digits two through five d. the calcaneus

Muscles that act on the knee joint form most of the mass of the __________. a. calf b. knee c. hip d. thigh

The origin of the rectus femoris is the ____________. a. anterior inferior iliac spine b. greater trochanter c. linea aspera d. anterior femu

The rectus femoris muscle extends the leg at the __________. a. knee b. elbow c. ankle d. hip

All fibers of the semimembranosus muscle converge to insert on the __________. a. anterior tibia b. posterior tibia c. posterior femur d. anterior femur

The semimembranosus __________ the thigh at the hip and __________ the leg at the knee. a. flexes; extends b. abducts; flexes c. extends; flexes d. adducts; extends

The semitendinosus muscle lies ______________ to the semimembranosus muscle. a. posterior b. lateral c. anterior d. deep

The semitendinosus muscle is innervated by the __________ nerve. a. coxal b. femoral c. patellar d. tibial portion of the sciatic

The soleus muscle shares an insertion with the __________. a. gastrocnemius muscle b. flexor digitorum longus c. flexor hallucis longus d. fibularis longus muscle

The soleus muscle __________ the foot at the ankle and is innervated by the __________. a. extends; tibial nerve b. extends; fibular nerve c. flexes; fibular nerve d. flexes; tibial nerve

The tensor fasciae latae stabilizes the hip joint and the __________ joint. a. knee b. elbow c. sacral d. ankle

The tibialis anterior muscle dorsiflexes the foot at the ankle and also assists in __________ of the foot. a. plantar flexion b. extension c. inversion d. eversion

The action of the extensor digitorum longus muscle is to __________. a. plantar flex the foot b. flex the digits c. extend digits d. invert the foot

Which of the following is NOT an action of the trapezius? a. elevate, retract, depress, and rotate scapula upward NOTE: Retracting both scapulae gives a sensation of "squeezing the shoulder blades together." b. elevate scapula c. circumduction of scapula NOTE: Movement of the shoulder in a circular motion so that if the elbow and fingers are fully extended the subject draws a circle in the air lateral to the body. d. extention of neck

Which muscle produces the same action (synergist) as the teres minor? Which muscle produces the same action (synergist) as the teres minor? a. teres major b. infraspinatus c. trapezius d. latissimus dorsi

Which of the following muscles produces extension of the finger joints and wrist? a. extensor digitorum b. triceps brachii c. aconeus d. brachioradialis

The action of this muscle includes flexion, adduction and medial rotation at the shoulder. a. sternocleidomastoid b. pectoralis major c. palmaris longus d. biceps brachii

Which of the following muscles does NOT flex the elbow (forearm)? a. brachioradialis b. brachialis c. triceps brachii d. biceps brachii

Which of the following muscles is NOT part of the hamstring group? a. biceps femoris b. gluteus medius c. semimembranosus d. semitendinosus

What is the action of the gastrocnemius? a. extension of knee; flexion and medial rotation at hip b. dorsiflexion c. flexion of knee; extension and lateral rotation at hip d.plantar flexion

What is the action of the gluteus maximus? a. adduction and lateral rotation of hip b. flexion and medial rotation of hip c. abduction and medial rotation of hip d. extension and lateral rotation of hip

Which of the following muscles is NOT part of the quadriceps femoris group? a. rectus femoris b. tensor fasciae latae c. vastus medialis d. vastus lateralis

Which of the following is NOT part of the adductor group? a. gracilis b. sartorius c. adductor longus d. pectineus

Which of the following muscles produces dorsiflexion when contracted? a. gastrocnemius b. tibialis anterior c. soleus d. extensor digitorum longus