Bioscience 5 muscles

Question 1

Temporalis proximal attachment

Answer 1

Floor of temporal fossa - up to inferior temporal line

Question 2

Temporalis distal attachment

Answer 2

coronoid process of mandible

Question 3

Temporalis action

Answer 3

elevate and retract mandible

Question 4

Temporalis nerve supply

Answer 4

Mandibular division of trigemenal nerve

Question 5

Masseter proximal attachment

Answer 5

Zygomatic bone and Zygomatic arch

Question 6

Masseter distal attachment

Answer 6

Angle of mandible and lateral side of ramus of mandible

Question 7

Masseter action

Answer 7

Elevates mandible and assists protrusion

Question 8

Masseter nerve supply

Answer 8

Mandibular division of trigemenal nerve

Question 9

Lateral Pterygoid proximal attachment

Answer 9

greater wing of sphenoid and lateral surface of lateral pterygoid plate

Question 10

Lateral Pterygoid distal attachment

Answer 10

Neck of mandible and disc

Question 11

Medial Pterygoid proximal attachment

Answer 11

Medial surface of lateral pterygoid plate, palatine and maxilla

Question 12

Medial Pterygoid distal attachment

Answer 12

medial surface of ramus of mandible

Question 13

Medial Pterygoid action

Answer 13

Bilateral: Elevates and assist in protrusion. Unilateral: Producing grinding movements

Question 14

Sternocleidomastoid inferior attachment

Answer 14

Manubrium of sternum and medial 1/3 of clavicle

Question 15

Sternocleidomastoid superior attachment

Answer 15

Mastoid process of temporal bone

Question 16

sternocleidomastoid nerve supply

Answer 16

Accessory nerve CN XI and c2, c3 pain and proprioception

Question 17

Trapezuis distal attachment

Answer 17

Lateral 1/3 of clavicle, acromion and spine of scapula

Question 18

Trapezius proximal attachment

Answer 18

Medial 1/3 superior nuchal line, external occipital protuberance, nuchal ligament, C7 - T12 spinous processes

Question 19

Trapezius action

Answer 19

Elevate, retracts and rotates scapulae inferiorly

Question 20

levator scapulae inferior attachment

Answer 20

superior part of medial border of scapula

Question 21

Levator scapulae superior attachment

Answer 21

C1 - C4 transverse processes

Question 22

Latissimus dorsi proximal attachment

Answer 22

Spinous processes T7-T12, Thoracolumbar fascia, iliac crest, inferior ribs 3-4

Question 23

Latissimus dorsi distal attachment

Answer 23

Floor of bicipital groove of humerus

Question 24

Latissimus dorsi nerve supply

Answer 24

Thoracodorsal nerve

Question 25

Latissimus dorsi action

Answer 25

Extends, adducts and medially rotates humerus

Question 26

Middle scalene superior attachment

Answer 26

Posterior tubercles of C5 - C7

Question 27

Middle Scalene inferior attachment

Answer 27

1st rib, posterior to subclavian groove

Question 28

Middle Scalene action

Answer 28

Side bending, elevation of 1st rib during forced inspiration

Question 29

Posterior Scalene superior attachment

Answer 29

Posterior tubercles C5 - C7

Question 30

Posterior Scalene inferior attachment

Answer 30

External border of 2nd rib

Question 31

Posterior scalene action

Answer 31

side bending of neck, elevation of 2nd rib during forced inspiration