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Muscle Quiz #2
Flexors and Extensors
34
Anatomy
12th Grade
01/04/2012

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Cards

Term
Flexor Capri Radialis
Definition
O - Medial epicondyle of humerus
I - Base of second and third metacarpals
A - flexes and abducts wrists
Term
Flexor Carpi Ularis
Definition
O - Medial epicondyle of humerus and olecranon process
I -Carpal and Metacarpal bones
A - Flexes and Abducts wrist
Term
Palmaris longus
Definition
O - Medial epicondyle of humerus
I - Fascia of Palm
A - Flexes wrist
Term
Flexor Digitorum Profunds
Definition
O - Anterior surface of ulna
I - bases of distal phalanges in finger 2-5
A - Flexes distal joints of fingers
Term
Extensor Carpi Radialis Longus
Definition
O - distal ends of humerus
I - Base of second metacarpal
A - extends wrist and abducts hand
Term
Extensor Carpi Radialis Brevis
Definition
O - Lateral epicondyle of humerus
I - Base of sec on and third metacarpals
A - Extends wrist and abuts hands
Term
Extensor Carpi Ularis
Definition
O - Lateral epicondyle of humerus
I - Base of fifth metacarpal
A - extends and adducts wrist
Term
Extensor Digitorum
Definition
O - Lateral epicondyle of humerus
I - Posterior surface of phalanges in finger 2-5
A - Extends fingers
Term
External Oblique
Definition
O - Outer surfaces of ribs
I - Outer lip of lilac crest and linea alba
A - Tenses abdominal wall and compresses abdominal contents
Term
Internal Oblique
Definition
O - Crest of illium and iguinal ligament
I - Cartilages of lowers ribs, linea alba, and crest of pubis
A - Tenses abdominal wall and compresses abdominal contents
Term
Transverse Abdominus
Definition
O - Coastal cartilages of lower ribs, process of lumbar vertebrae, lip of iliac crest and iguinal ligament
I - Linea alba and crest of pubis
A - Tenses abdominal wall and compresses abdominal contents
Term
Rectus Abdominus
Definition
O - Crest of pubis and symphysis pubis
I - Xiphoid process o sternum and costal cartilages
A - Tenses abdominal wall and compresses abdominal contents; flexes vertebral column
Term
Levator Ani
Definition
O - Pubic bone and ischial spine
I - Coccyx
A - Supports pelvic viscera and provides spinsterlike action in anal canal and vagina
Term
Superficial transversus perinei
Definition
O - Ischial tuberosity
I - Central tendon
A - Supports pelvic vescera
Term
Bulbospongiosus
Definition
O - Central tendon
I - Male: urogenital diaphragm and fascia of the penis
Female: pubic arch and root of clitoris
A - Male: assists emptying of urethra
Female: contracts vagina
Term
Ischiocavernosus
Definition
O - Ischial tuberosity
I - Pubic arch
A - Assists function of bulbospongiosus
Term
Gluteus Maximus
Definition
O - Sacrum, Coccyx, and posterior surface of illium
I - Posterior surface of femur and fascia of thigh
A - Extends thigh
Term
Gluteus Medius
Definition
O - Lateral surface of illium
I - Greater trochanter of femur
A - Adducts and rotates thigh medially
Term
Gluteus Minimus
Definition
O - Lateral surface of illium
I - Greater trochanter of femur
A - Adducts and rotates thigh medially
Term
Gracilis
Definition
O - Lower edge of symphysis pubis
I - Medial surface of tibia
A - Adducts thigh, flexes and rotates lower limb medially
Term
Sartorius
Definition
O - Anterior superior iliac spine
I - Medial surface of tibia
A - Flexes leg and thigh, rotates thigh laterally, and rotates leg medially
Term
Biceps Femoris
Definition
O - Ischial tuberosity and posterior surface of femur
I - Head of fibula and lateral condyle of tibia
A - flexes leg, extends high
Term
Semitendinosus
Definition
O - Ischial tuberosity
I - Medial surface of tibia
A - flexes leg, extends thigh
Term
Semimembranosus
Definition
O - Ischial tuberosity
I - Medial condyle of tibia
A - flexes leg, extends thigh
Term
Biceps Femoris
Definition
O - Ischial tuberosity and posterior surface of femur
I - Head of fibula and lateral condyle of tibia
A - flexes leg, extends high
Term
Semitendinosus
Definition
O - Ischial tuberosity
I - Medial surface of tibia
A - flexes leg, extends thigh
Term
Semimembranosus
Definition
O - Ischial tuberosity
I - Medial condyle of tibia
A - flexes leg, extends thigh
Term
Rectus Femoris
Definition
O - Spine of ilium ad margin of acetabulum
I - Patella of the tendon which continues as patellar ligament to tibia tuberosity
A - Extends leg at knee
Term
Vastus Lateralis
Definition
O - Grater trochanter and posterior surface of femur
I - Patella of the tendon which continues as patellar ligament to tibia tuberosity
A - Extends leg at knee
Term
Vastus Medialis
Definition
O - Medial surface of femur
I - Patella of the tendon which continues as patellar ligament to tibia tuberosity
A - Extends leg at knee
Term
Vastus Intermedius
Definition
O - Anterior and lateral surfaces of femur
I - Patella of the tendon which continues as patellar ligament to tibia tuberosity
A - Extends leg at knee
Term
Tibialis Anterior
Definition
O - Lateral condyle and lateral surface of tibia
I - Tarsal bone ( cuneiform) and first metatarsal
A - Dorsiflexion and inversion of foot
Term
Gastrocnemius
Definition
O - Lateral and medial condyles of femur
I - Posterior surface of calcaneus
A - Plantar flexion of foot and flexion of leg at knee
Term
Soleus
Definition
O - Head and shaft of fibula and posterior surface of tina
I - Posterior surface of calcaneus
A - Plantar flexion of foot
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