Chapter 6 Muscles

Question 0

Orbicularis oculi

Answer 0

Located around eye; closes eyelids

Question 1

Frontalis

Answer 1

Located on front of skull; raises eyebrows and wrinkles forehead

Question 2

Orbicularis oris

Answer 2

Located around the lips; known as the kissing muscle because it is used to pucker the lips

Question 3

Temporalis

Answer 3

Located on temporal bones of the skull; serves in elevation and retraction of mandible

Question 4

Zygomaticus

Answer 4

Located near zygomatic bone; draws angle of mouth upward and laterally

Question 5

Masseter

Answer 5

Located near zygomatic arch and maxilla; serves in elevation (as in closing of the mouth) and protraction of mandible

Question 6

Buccinator

Answer 6

Located between maxilla and mandible; compresses the cheeks against the teeth and is used in acts such as blowing

Question 7

Sternocleidomastoid

Answer 7

Located near manubrium sterni and medial portion of the clavicle; rotates the head to the opposite side or obliquely rotate the head

Question 8

Pectoralis major

Answer 8

Located near breasts; addicts and medially rotates the humerus. Also draws the scapula anteriorly and inferiorly.

Question 9

Rectus abdominus

Answer 9

Creates abs; serves as flexion of the lumbar spine

Question 10

External oblique

Answer 10

Located on side of abdomen; serves for contralateral rotation of the torso

Question 11

Internal oblique

Answer 11

Located on side of abdomen; compresses abdomen

Question 12

Biceps brachii

Answer 12

Located on upper arm; flexes elbow, flexes and abducts shoulder

Question 13

Deltoid

Answer 13

Located near shoulders; serves in shoulder abduction, flexion and extension

Question 14

Iliopsoas

Answer 14

Located near thigh; serves in flexion of the hip

Question 15

Quadriceps

Answer 15

Located in upper part of leg; serves in knee extension and hip flexion

Question 16

Tibialis anterior

Answer 16

Located in lower part of leg; serves in dorsiflexion and inversion of the foot

Question 17

Trapezius

Answer 17

Located near neck in back; serves in rotation, retraction, elevation, and depression of scapula

Question 18

Latissimus Dorsi

Answer 18

Located near the side in the middle of the back(vertically); serves in adducts, extends and internally rotates the arm when the insertion is moved towards the origin

Question 19

Triceps Brachii

Answer 19

Located in upper part of arm; extends forearm, long head extends, adducts arm, extends shoulder

Question 20

Gluteus Maximus

Answer 20

Located near buttocks; serves in external rotation and extension of the hip joint, supports the extended knee, chief antigravity muscle in sitting and abduction of the hip

Question 21

Gluteus Medius

Answer 21

Located anteriorly of buttocks; serves in abduction of the hip, preventing adduction of the hip. Also serves in medial rotation of the thigh.

Question 22

Hamstrings

Answer 22

Located on the posterior part of upper leg; serves in the flexion of the knee and extension of the hip

Question 23

Gastrocnemius

Answer 23

Located near the bulging shape of the calf; plantar flexes foot, flexes knee

Question 24

Soleus

Answer 24

Located in the back part of the lower leg; plantarflexion