muscular system pt 2 (45-70) Flashcards
what are the muscles that move the forearm at the elbow
- Biceps brachii
- Triceps brachii
- Brachioradialis
Biceps brachii function
flexes forearm at the elbow and supinates the forearm
triceps brachii function
extends forearm at the elbow
Brachioradialis function
flexes the forearm
what are the muscles that move the hand and fingers
- flexor carpi radialis
- flexor carpi ulnaris
- extensor carpi radialis longus
- extensor carpi ulnaris
- supinator
flexor carpi radialis function
flexes the hand at the wrist, and abducts the hand at the wrist
flexor carpi ulnaris function
flexes the hand at the wrist and adducts the hand at the wrist
extensor carpi radialis longus function
extends and abducts the hand at the wrist
extensor carpi ulnaris function
extends and adducts the hand at the wrist
supinator function
supinates the forearm at the elbow with the biceps brachii
what are the muscles that move the thigh at the hip
- Iliopsoas
- gluteus maximus
- gluteus medius
- gluteus minimus
Iliopsoas function
flexes thigh and trunk, and laterally flexes the vertebral column
gluteus maximus function
extends thigh when it is elevated, laterally rotates and abducts the thigh
gluteus medius function
abducts and medially rotates the thigh
gluteus minimus function
abducts and medially rotates the thigh
muscles that move the thigh at the hip, the leg at the knee, or both
( anterior view)
- Sartorius
Quadriceps femoris - Rectus femoris
- vastus lateralis
- vastus medialis
- vastus intermedius
sartorius function
flexes, abducts and laterally rotates the thigh; flexes the thigh at the knee
rectus femoris function
extends the leg at the knee and flexes the thigh at the hip
vastus lateralis function
extends the leg at the knee
vastus medialis function
extends the leg at the knee
vastus intermedius function
extends the leg at the knee
Muscles that move the thigh at the hip, the leg at the knee or both
(posterior view)
*Hamstring
- Biceps femoris
- semitendinosus
- semimembranosus
biceps femoris function
extends the thigh at the hip; laterally rotates the leg at the knee; flexes the leg at the knee
semitendinosus function
extends the thigh at the hip; flexes the leg at the knee; medially rotates the leg
semimembranosus function
extends the thigh at the hip; flexes the leg at the knee; medially rotates the leg
muscles that move the thigh at the hip, the leg at the knee, or both
(medial view)
- Adductor Longus
- Adductor Magnus
- Adductor Brevis
Adductor Longus function
Adducts, medially rotates and flexes the thigh at the hip
Adductor Magnus function
Adducts, medially rotates and flexes the thigh at the hip
Adductor Brevis function
Adducts, medially rotates and flexes the thigh at the hip
muscles that move the leg, foot, and toes
(Anterior view)
- Tibialis anterior medial
- Fibularis Tertius
Tibialis Anterior medial function
Dorsiflexion, inverts the foot, supports longitudinal arch of the foot
Fibularis Tertius function
Dorsiflexion and eversion of the foot
Muscles that move the leg, the foot and toes
(Lateral view)
- Fibularis Longus
- Fibularis Brevis
Fibularis Longus function
Plantar flexion and eversion of the foot
Fibularis Brevis function
Plantar flexion and eversion of the foot
muscles that move the leg, the foot and toes
(Posterior view)
- Gastrocnemius
- Soleus
- Tibialis Posterior
Gastrocnemius function
Plantar flexes the foot when knee is extended; flexes the leg at the knee
Soleus function
Plantar flexes the foot
Tibialis Posterior function
Inverts foot, plantar flexes the foot
