Chapter 6 Muscles Flashcards Preview

Anatomy > Chapter 6 Muscles > Flashcards

Flashcards in Chapter 6 Muscles Deck (25):
0

Frontalis

Located on front of skull; raises eyebrows and wrinkles forehead

1

Orbicularis oculi

Located around eye; closes eyelids

2

Orbicularis oris

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

3

Temporalis

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

4

Zygomaticus

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

5

Masseter

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

6

Buccinator

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

7

Sternocleidomastoid

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

8

Pectoralis major

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

9

Rectus abdominus

Creates abs; serves as flexion of the lumbar spine

10

External oblique

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

11

Internal oblique

Located on side of abdomen; compresses abdomen

12

Biceps brachii

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

13

Deltoid

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

14

Iliopsoas

Located near thigh; serves in flexion of the hip

15

Quadriceps

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

16

Tibialis anterior

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

17

Trapezius

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

18

Latissimus Dorsi

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

19

Triceps Brachii

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

20

Gluteus Maximus

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

21

Gluteus Medius

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

22

Hamstrings

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

23

Gastrocnemius

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

24

Soleus

Located in the back part of the lower leg; plantarflexion