Lecture 4 Flashcards
What are the muscles of the rotator cuff?
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
and they reinforce the shoulders
What are the anterior flexor muscles?
Brachialis and biceps brachii-forearm flexors
- Biceps brachii-two heads, superficial
- brachialis-deeper
What are the posterior extensor muscles?
triceps brachii-
forearm extension
three headed origin
-inserts into olecranon process of ulna
What does the supinator do?
supinates the form along with the brachii
What do pronators do?
Pronate the forearm
What are the muscles of the forearm?
flexor carpi radialis-lateral wrist flexor (abduction)
flexor carpi ulnaris- medial wrist flexor (adduction)
Palmaris longus
flexor digitorum muscles-finger flexor
flexor pollicus longus- thumb flexor
What are the extensors of the muscles of the hand?
Extensor carpi radialis extensor carpi ulnaris Extensor digitorum- finger extensor extensor indicis- index finger extensor pollicis-thumb extensor abductor pollicis longus-thumb abductor
What is the name of the ball of the thumb?
Thenar eminence (ball of thumb)
- contains muscles that move the thumb
- abduction
- adduction
- flexion
- extension
- opposition
What is the ball of the little finger?
hypothenar eminence
-contains muscles for the little finger
What is the name of the little finger?
Digiti mnimi
How muscles flex the hip and extend the knee?
Anterior muscles
What muscles extend the thigh and flex the leg?
Posterior muscles
What muscles adduct the thigh?
medial muscles
What are the adductors of the thigh?
Magnus
Longus
Brevis
What is the gracilis?
superficial muscle of the medial thigh
What muscle flexes the thigh?
Iliopsoas
What muscles make up the hamstrings?
- ) bicep femoris
- ) semitendinosus
- ) Semimembranosus
What is the prime mover during forceful extension in the hamstring?
gluteus maximus- extends and abducts the thigh
What muscles abduct and medially rotate the thigh?
Gluteus medius and minimus
What anterior muscles of the thigh??
Quadriceps femoris - prime knee extensor Rectus femoris-most superficial vastus medialis Vastus lateralis Vatus intermedius
What muscle encases the patella?
quadriceps tendon
What is responsible for the primary toes extensor and ankle dorsiflexors?
- Tibialis anterior-main dorsiflexor
- Extensor digitorum longus
- extensor hallucis longus
What are the muscles of the posterior leg?
Plantar flexion
- gastrocnemius- calf muslce
- soleus- deep to gastrocnemius
- insert into calcaneus via achiles’ tendon
Flexors of the toes
tibialis posterior
flexor digitorium longus
flexor hallucis longus
What does RICE mean?
Rest
Ice
Compression
elevate
