IUPUI Biol N261 Exam 3 Muscles and
Actions Questions and Answers
Question 1
Rhomboideus minor
Correct Answer
Adducts scapula (draws scapulae together)
Question 2
Buccinator
Correct Answer
Compresses cheek
Question 3
Infraspinatus
Correct Answer
Laterally rotates arm, stabilizes shoulder joint
Question 4
Sartorius
Correct Answer
Flexes and laterally rotates thigh, flexes leg
Question 5
Iliocostalis
Correct Answer
Extends and rotates vertebral column and head
Page 1 of 19
,Question 6
Vastus lateralis
Correct Answer
Extends leg
Question 7
Brachialis
Correct Answer
Flexes forearms
Question 8
Internal intercostals
Correct Answer
Depresses ribs (decreases volume in thorax)
Question 9
Scalenes (anterior, middle, and posterior)
Correct Answer
Flexes and rotates neck, elevates rib 1 and 2
Question 10
The 5 muscles of medial compartment of thigh
Correct Answer
-Adductor magnus
-Pectineus
-Adductor brevis
-Adductor longus
-Gracilis
Page 2 of 19
, Question 11
Soleus
Correct Answer
Plantar flexes foot
Question 12
Pectoralis minor
Correct Answer
Depress glenoid cavity, raises ribs 3-5
Question 13
Deltoid
Correct Answer
Abducts arm; flexes, extends, medially and laterally rotates arm
Question 14
Splenius
Correct Answer
Extends and rotates head
Question 15
Tibialis posterior
Correct Answer
Plantar flexes and inverts foot
Question 16
Gastrocnemius
Correct Answer
Flexes leg, plantar flexes foot
Page 3 of 19
Actions Questions and Answers
Question 1
Rhomboideus minor
Correct Answer
Adducts scapula (draws scapulae together)
Question 2
Buccinator
Correct Answer
Compresses cheek
Question 3
Infraspinatus
Correct Answer
Laterally rotates arm, stabilizes shoulder joint
Question 4
Sartorius
Correct Answer
Flexes and laterally rotates thigh, flexes leg
Question 5
Iliocostalis
Correct Answer
Extends and rotates vertebral column and head
Page 1 of 19
,Question 6
Vastus lateralis
Correct Answer
Extends leg
Question 7
Brachialis
Correct Answer
Flexes forearms
Question 8
Internal intercostals
Correct Answer
Depresses ribs (decreases volume in thorax)
Question 9
Scalenes (anterior, middle, and posterior)
Correct Answer
Flexes and rotates neck, elevates rib 1 and 2
Question 10
The 5 muscles of medial compartment of thigh
Correct Answer
-Adductor magnus
-Pectineus
-Adductor brevis
-Adductor longus
-Gracilis
Page 2 of 19
, Question 11
Soleus
Correct Answer
Plantar flexes foot
Question 12
Pectoralis minor
Correct Answer
Depress glenoid cavity, raises ribs 3-5
Question 13
Deltoid
Correct Answer
Abducts arm; flexes, extends, medially and laterally rotates arm
Question 14
Splenius
Correct Answer
Extends and rotates head
Question 15
Tibialis posterior
Correct Answer
Plantar flexes and inverts foot
Question 16
Gastrocnemius
Correct Answer
Flexes leg, plantar flexes foot
Page 3 of 19