Exam 1

Question 1

Trapezius
-Spinotrapezius
-Acromiotrapezious
-Clavotrapezius

Answer 1

Origin: Occipital bone, cervical and thoracic vertebrae
Insertion: Scapula, clavicle
Action: Adduct, elevates, and raises scapula, raises clavicle

Question 2

Deltoid
-Spinodeltoid
-Acromiodeltoid
-Clavodeltoid

Answer 2

Origin: Clavicle, scapula
Insertion: Humerus
Action: Abduct arm

Question 3

Levator scapulae (ventralis)

Answer 3

Origin: Cervical vertebrae
Insertion: Scapula
Action: Raises scapula

Question 4

Latissimus dorsi

Answer 4

Origin: Sacrum, ilium, lumbar and thoracic vertebrae, ribs
Insertion: Humerus
Action: Extends, adducts, rotates arm medially; pulls shoulder down and back

Question 5

Rhomboideus major

Answer 5

Origin: Thoracic vertebrae
Insertion: Scapula
Action: Elevates, adducts scapula and rotates it downwards; stabilizes scapula

Question 6

Rhomboideus minor

Answer 6

Origin: Cervical and thoracic vertebrae
Insertion: Scapula
Action: Elevates, adducts scapula and rotates it downward; stabilizes scapula

Question 7

Rhomboideus capitus (cat)

Question 8

Infraspinatus

Answer 8

Origin: Scapula
Insertion: Humerus
Action: Laterally rotates and adducts arm

Question 9

Supraspinatus

Answer 9

Origin: Scapula
Insertion: Humerus
Action: Abducts arm

Question 10

Terres Major

Answer 10

Origin: Scapula
Insertion: Humerus
Action: Extends, adducts, rotates humerus

Question 11

Splenius (capitis)

Answer 11

Origin: Cervical and thoracic vertebrae
Insertion: Temporal and occipital bone
Action: Extends and rotates head

Question 12

Serratus ventralis (anterior)

Answer 12

Origin: Ribs
Insertion: Scapula
Action: Abducts scapula and rotates it upward

Question 13

Serratus dorsalis (posterior)

Answer 13

Origin: Vertebrae
Insertion: Ribs
Action: Elevates ribs

Question 14

Spinalis (thoracis)

Answer 14

Origin: Thoracic and lumbar vertebrae
Insertion: Thoracic vertebrae
Action: Extends vertebral column

Question 15

Longissimus thoracis

Answer 15

Origin: Sacrum
Insertion: Thoracic vertebrae and ribs
Action: Extends and bends vertebral column

Question 16

Longissimus cervicis

Answer 16

Origin: Thoracic vertebrae
Insertion: Cervical vertebrae
Action: Extends Cervical vertebrae

Question 17

Longissimus capitis

Answer 17

Origin: Thoracic and cervical vertebrae
Insertion: Temporal bone
Action Laterally flex and extend head

Question 18

Illiocostalis

Answer 18

Origin: Ribs
Insertion: C7 vertebrae; lower ribs
Action: Extends and bends vertebral column

Question 19

Multifdus

Answer 19

Origin: Sacrum, ilium, cervical, thoracic, and lumbar vertebrae
Insertion: Vertebrae above origin
Action: Straightens and rotates vertebral column

Question 20

Pectoantebrachialis (cat)

Question 21

Pectoralis major

Answer 21

Origin: Clavicle, sternum, ribs
Insertion: Humerus
Action: Flexes, adducts and rotates shoulder upwards

Question 22

Pectoralis minor

Answer 22

Origin: Ribs
Insertion: Scapula
Action: Depresses scapula, rotates shoulder upward

Question 23

Xiphihumeralis (cat)

Question 24

External oblique

Answer 24

Origin: Ribs
Insertion: ilium; linea alba
Action: Compresses abdomen; flexes vertebral column

Question 25

Internal oblique

Answer 25

Origin: ilium Insertion: Lower ribs; linea alba Action: Compresses abdomen; flexes vertebral column

Question 26

Transversus abdominis

Answer 26

Origin: ilium, ribs Insertion: Sternum, linea alba, pubis Action: Compresses abdomen; flexes vertebral column

Question 27

Rectus abdominis

Answer 27

Origin: Pubis Insertion: Sternum, ribs Action: Compresses abdomen; flexes vertebral column

Question 28

Sternocleidomastoid

Answer 28

Origin: Sternum, clavicle Insertion: Temporal bone Action: Flex and rotate head

Question 29

Sternomastoid (cat) Cleidomastoid (cat)

Question 30

Sternohyoid

Answer 30

Origin: Sternum (manubrium); clavicle Insertion: Hyoid bone Action: Depresses hyoid bone

Question 31

Mylohyoid

Answer 31

Origin: Mandible Insertion: Hyoid bone Action: Elevates floor of mouth

Question 32

Digastric

Answer 32

Origin: Mandible Insertion: Hyoid bone Action: Depresses mandible

Question 33

Masseter

Answer 33

Origin: Zygomatic arch; mandible Insertion: Mandible Action: Elevates and protacts mandible

Question 34

Temporalis

Answer 34

Origin: Temporal bone Insertion: Mandible Action: Elevates mandible

Question 35

Sternothyroid

Answer 35

Origin: Sternum (manubrium) Insertion: Thyroid cartilage Action: Depresses thyroid cartilage

Question 36

Thyrohyoid

Answer 36

Origin: Thyroid cartilage Insertion: Hyoid bone Action: Elevates thyroid cartilage; depresses hyoid bone

Question 37

Cricothyroid

Answer 37

Origin: Cricoid cartilage of larynx Insertion: Thyroid cartilage Action: Produce tension and elongates vocal cords

Question 38

Geniohyoid

Answer 38

Origin: Mandible Insertion: Hyoid bone Action: Draws hyoid bone and tongue anteriorly