GRCC BI 121 Muscles Lab questions with verified
answers
Adductor longus Ans✓✓✓ Adducts thigh
Biceps brachii Ans✓✓✓ O- short head: coracoid process, long head:
runs in intertubercular groove
I- Radial tuberosity of radius
A- Flexes forearm
Biceps femoris Ans✓✓✓ Extends thigh
Brachialis Ans✓✓✓ Flexes forearm
Brachioradialis Ans✓✓✓ Flexes forearm at elbow
Calcaneal tendon Ans✓✓✓ Anchors gastrocnemius and soleus to
calcaneal bone
Deltoid Ans✓✓✓ Laterally rotates upper arm
Digastric Ans✓✓✓ Depresses mandible
, Epicranial aponeurosis Ans✓✓✓ Aponeurosis that covers skull
Erector spinae Ans✓✓✓ Prime mover for back extension
Extensor digitorum Ans✓✓✓ Extends digits 2-5
Extensor digitorum longus Ans✓✓✓ Extends toes
Extensor retinaculum Ans✓✓✓ Dorsal surface of carpal bones
External Intercostalis Ans✓✓✓ Elevate rib cage during inspiration
External oblique Ans✓✓✓ Flexes vertebral column
Fibularis longus Ans✓✓✓ Plantar flexes foot
Flexor carpi radialis Ans✓✓✓ Flexes hand
Flexor digitorum longus Ans✓✓✓ Flexes toes
Flexor digitorum superficialis Ans✓✓✓ Flexes digits 2-5
answers
Adductor longus Ans✓✓✓ Adducts thigh
Biceps brachii Ans✓✓✓ O- short head: coracoid process, long head:
runs in intertubercular groove
I- Radial tuberosity of radius
A- Flexes forearm
Biceps femoris Ans✓✓✓ Extends thigh
Brachialis Ans✓✓✓ Flexes forearm
Brachioradialis Ans✓✓✓ Flexes forearm at elbow
Calcaneal tendon Ans✓✓✓ Anchors gastrocnemius and soleus to
calcaneal bone
Deltoid Ans✓✓✓ Laterally rotates upper arm
Digastric Ans✓✓✓ Depresses mandible
, Epicranial aponeurosis Ans✓✓✓ Aponeurosis that covers skull
Erector spinae Ans✓✓✓ Prime mover for back extension
Extensor digitorum Ans✓✓✓ Extends digits 2-5
Extensor digitorum longus Ans✓✓✓ Extends toes
Extensor retinaculum Ans✓✓✓ Dorsal surface of carpal bones
External Intercostalis Ans✓✓✓ Elevate rib cage during inspiration
External oblique Ans✓✓✓ Flexes vertebral column
Fibularis longus Ans✓✓✓ Plantar flexes foot
Flexor carpi radialis Ans✓✓✓ Flexes hand
Flexor digitorum longus Ans✓✓✓ Flexes toes
Flexor digitorum superficialis Ans✓✓✓ Flexes digits 2-5