The quadriceps perform knee extension, however, the rectus femoris, which is one of the 4 muscles of the quadriceps, also does hip flexion.
Triceps muscle is not a flexor. Triceps is an extensor of elbow joint. Biceps muscle is flexor.
No. The biceps are a flexor muscle.
Extensor muscles open a joint and are the opposite to flexor muscles, which close it. I imagine triceps are extensor, while biceps are flexor.
The triceps are extensor muscles.
What you are talking about is flexor muscle and not extensor aren't you?
The muscles of the legs do not follow the generalization that extensor muscles are on the posterior and flexor muscles are on the anterior.
Flexor and extensor tendons connected to skeletal muscle
The flexor muscles are found in the quadriceps as well as the sartorius, iliopsoas, psoas minor, and the pectineus muscles. The rectus femoris is the primary flexor muscle of the quadriceps. The extensor muscles are found in the hamstrings and the gluteus maximus.
extensor
Extensor
There are many muscles in the hand. Here are a few: extensor carpi radialis brevis extensor carpi radialis longus extensor carpi ulnaris extensor digitorum communis extensor indicis proprius extensor digiti minimi abductor pollicis longus extensor pollicis brevis extensor pollicis longus flexor carpi ulnaris flexor digitorum profundus flexor digitorum superficialis flexor carpi radialis flexor carpi ulnaris palmaris longus flexor pollicis longus abductor pollicis brevis flexor pollicis brevis opponens pollicis adductor pollicis palmaris brevis abductor digiti minimi flexor digiti minimi opponens digiti minimi Then each finger has a set of lumbrical muscles and 3 volar and 4 dorsal muscles
Extensor muscles open a joint and are the opposite to flexor muscles, which close it. I imagine triceps are extensor, while biceps are flexor.