Muscular System Gross Anatomy 2 Lab Activities
triceps brachii
P; extends the elbow
adduction
A reduction in the lateral angle of the glenohumeral joint in relation to the anatomical position would be called __________.
rectus femoris
A; extends the leg
vastus lateralis
A; extends the leg
vastus medialis
A; extends the leg
flexor carpi radialis
A; flexes wrist and abducts hand
The gluteus medius muscle __________.
Abducts and medially rotates thigh
false
Both the Psoas major muscle and iliacus muscle extend the thigh.
Triceps brachii is only muscle on posterior side of the arm, and it extends the forearm. The biceps brachii is found on the anterior side of the arm and flexes and supinates the forearm.
Distinguish between the triceps brachii and the biceps brachii in terms of location and function.
Sartorius
Identify the muscle labeled "c."
Triceps brachii
Identify the muscle labeled "c."
Extensor digitorum
Identify the muscle labeled "g."
Tibialis anterior
Identify the muscle labeled "h."
Pronator teres
Identify the muscle labeled "l."
Flexor carpi radialis
Identify the muscle labeled "m."
Semitendinosus
Identify the muscle labeled "n."
Rectus femoris
Identify the structure labeled "h."
Gastrocnemius
Identify the structure labeled "r."
Gastrocnemius and soleus
In order for a ballerina to dance on point (on her toes), which set of muscles would she use?
abduction
Movement of the shoulder laterally away from the body is called __________.
sartorius
Name this muscle.
flexor carpi radialis
Name this superficial muscle of the anterior forearm.
biceps femoris
P; flexes the leg
semitendinosus
P; flexes the leg
plantar flexion of the foot
Select the correct action(s) of this muscle.
extends, abducts, and laterally rotates the thigh
Select the correct actions of this muscle.
True
The Sartorius muscle flexes and laterally rotates the leg at the knee.
True
The action of both vastus medialis and the vastus lateralis is to extend the leg at the knee.
extend digits
The action of the extensor digitorum longus muscle is to __________.
flexion of the elbow
The action of the muscle highlighted above is
wrist
The actions of the extensor carpi radialis brevis are localized to the __________.
inversion
The actions of the muscles that cross the hip do not include __________.
deep
The brachialis muscle is located __________ to the biceps brachii muscle.
flexor
The brachioradialis is a strong forearm
adducts the wris
The flexor carpi ulnaris __________.
extension
The gluteus maximus is the most powerful muscle during __________.
four tendons
The insertion of the extensor digitorum branches into __________.
evert the foot
The main action of the fibularis longus is to __________.
adductor longus
The muscle highlighted above is the
biceps femoris
The muscle highlighted above is the
extensor digitorum longus
The muscle highlighted above is the
tibilais anterior
The muscle highlighted above is the
brachialis
The muscle that generates the most power during elbow flexion is the __________.
adducts and flexes
The pectineus muscle __________ the thigh.
triceps brachii
The prime mover of elbow extension is the __________.
gluteus maximus
The prime mover of hip extension is the __________.
knee
The rectus femoris muscle extends the leg at the __________.
extends; flexes
The semimembranosus __________ the thigh at the hip and __________ the leg at the knee.
Posterior
The semitendinosus muscle lies ______________ to the semimembranosus muscle.
abduction
The tensor fascia latae is involved in hip __________.
knee
The tensor fasciae latae stabilizes the hip joint and the __________ joint.
inversion
The tibialis anterior muscle dorsiflexes the foot at the ankle and also assists in __________ of the foot.
extends
The vastus intermedius __________ the leg at the knee.
popliteus
To allow for flexion, the __________ unlocks the knee joint.
adducts the thigh
What is an action of the highlighted muscle at the hip?
extension hand at wrist
What is an action of the highlighted muscle?
gluteus maximus
Which gluteal muscle is highlighted?
Extensor digitorum longus
Which muscle extends the toes?
Iliopsoas
Which muscle flexes the thigh toward the trunk?
Extensor digitorum
Which muscle functions in extensions of the digits of the hand?
Rectus femoris
Which muscle is a hip flexor?
Biceps femoris
Which muscle is a lateral hamstring?
Soleus
Which muscle is deep to the gastrocnemius?
biceps brachii
Which muscle is highlighted?
biceps femoris
Which muscle is highlighted?
brachioradialis
Which muscle is highlighted?
extensor carpi ulnaris
Which muscle is highlighted?
extensor digitorum
Which muscle is highlighted?
flexor carpi ulnaris
Which muscle is highlighted?
gastrocnemius
Which muscle is highlighted?
gluteus maximus
Which muscle is highlighted?
gluteus minimus
Which muscle is highlighted?
gracilis
Which muscle is highlighted?
plantaris
Which muscle is highlighted?
tensor fasciae latae
Which muscle is highlighted?
vastus intermedius
Which muscle is highlighted?
Brachialis
Which muscle is located deep to the biceps brachii?
Semitendinosus
Which muscle is located on the posterior thigh?
Extensor carpi ulnaris
Which muscle is located primarily in the posterior antebrachial region?
Biceps brachii muscle
Which set of muscles is primarily used when doing bar chin-ups?
It extends the forearm.
Which statement is true of the triceps brachii but false of the biceps brachii?
A; flexes and supinates the forearm
biceps brachii
P; extends wrist and adducts hand
extensor carpi ulnaris
P; extends fingers and wrist
extensor digitorum
The gastrocnemius muscle
has two heads - medial and lateralplantar flexes foot at ankle assists in flexion of leg at knee
