Anatomy Muscles 1 Flashcards
Bulbospongiosus anterior attachment (male)
Contralateral bulbospongiosus muscle at the midline raphe
Bulbospongiosus posterior attachment
Perineal body
Bulbospongiosus action (male)
Compress the bulb of the penis to expel urine or semen
Bulbospongiosus innervation
Deep branch of the perineal n
Ischiocavernosus anterior attachment (male)
crus of the penis
Ischiocavernosus posterior attachment
ischial tuberosity and ischiopubic ramus
Ischiocavernosus action (male)
Forces blood from the crus of the penis into the distal part of the corpus cavernosum penis
Ischiocavernosus innervation
Deep branch of the perineal n
Superficial transverse perineal anterior attachment
Perineal body
Superficial transverse perineal posterior attachment
Ischial tuberosity
Superficial transverse perineal action
Provides support to the perineal body
Superficial transverse perineal innervation
Perineal n
Deep traverse perineal anterior attachment
perineal body
Deep transverse perineal posterior attachment
ischial tubersotiy
Deep transverse perineal action
provides support to the perineal body
Deep transverse perineal innervation
Perineal n
External urethral sphincter anterior attachment
Attaches to itself around the urethra
External urethral sphincter posterior attachment
Attaches to itself around the urethra
External urethral sphincter action
compresses the membranous urethra and stops the flow of urine
External urethral sphincter innervation
Deep branch of the perineal n.
Bulbospongiosus Anterior attachment (female)
Corpus cavernosum clitoris
Bulbospongiosus action (female)
compress the bulb of the clitoris
Ischiocavernosus anterior attachment (female)
crus of the clitoris
Ischiocavernosus action (female)
foces blood from the crus of the clitoris into the distal part of the corpus cavernosum
Pectineus proximal attachment
Pecten pubis and superior ramus of the pubis
Pectineus distal attachment
Pectineal line of the femur
Pectineus action
adducts the thigh, hip flexion, assists in medial rotation of hip
Pectineus innervation
Femoral n and obturator n
Illiopsoas distal attachment
lesser troachanter of the femur
Illiopsoas action
flexes the thigh
Sartorius proximal attachment
Anterior superior iliac spine
Sartorius distal attachment
medial surface of the proximal tibia
Sartorius action
flexes and lateral rotates the thigh, flexes and medially rotates the leg
Illiopsoas innervation
femoral n
Sartorius innervation
femoral n
Tensor fasciae lata proximal attachment
anterior superior iliac spine
Tensor fasciae lata distal attachment
Iliotibial tract
Tensor fasciae lata action
Abducts, medially rotates, and flexes the thigh
Tensor fasciae lata innervation
Superior gluteal
Rectus femoris proximal attachment
Anterior inferior iliac spine
Rectus femoris distal attachment
tibial tuberosity
Rectus femoris action
flexes the thigh and extends the leg
Rectus femoris innervation
femoral n
Vastus medialis proximal attachment
Medial lip of the linea aspera and intertrochanteric line
Vastus medialis distal attachment
Tibial tuberosity
Vastus medialis action
Extends the leg
Vastus medialis innervation
Femoral n
Vastus lateralis proximal attachment
Lateral lip of the linea aspera and greater trochanter
Vastus lateralis distal attachment
Tibial tuberosity
Vastus lateralis action
Extends the leg
Vastus lateralis innervation
Femoral n
Vastus intermedius proximal attachment
anterior and lateral surfaces of the femur
Vastus intermedius distal attachment
tibial tuberosity
Vastus intermedius action
Extends the leg
Vastus intermedius innervation
Femoral n
Gracilis proximal attachment
Body of pubis and inferior pubic ramus
Gracilis distal attachment
Superior part of medial surface of tibia
Gracilis action
Adducts the thigh; flexes and internally rotates the leg
Gracilis innervation
Obturator n
Adductor longus proximal attachment
Body of pubis inferior to pubic crest
Adductor longus distal attachments
Middle third of linea aspera
Adductor longus actions
Adducts the thigh
Adductor longus innervation
Obturator n
Adductor brevis proximal attachment
body of pubis and inferior pubic ramus
Adductor brevis distal attachment
pectineal line and proximal part of linea aspera
Adductor brevis action
Adducts the thigh
Adductor brevis innervation
Obturator n
Adductor magnus proximal attachment
Ischiopubic ramus and ischial tuberostiy
Adductor magnus distal action
adducts and extends the thigh
Adductor magnus innervation
Obturator n (adductor part), tibial division of the sciatic n (hamstring part)
Obturator externus proximal attachment
External margins of obturator foramen and obturator membrane
Obturator externus distal attachments
Trochanteric fossa of femur
Obturator externus actions
Laterally rotates the thigh
Obturator externus innervation
Obturator n.
Gluteus maximus distal attachment
Illiotibial tract and gluteal tuberosity
Gluteus maximus action
extends and laterally rotates the thigh
Gluteus maximus innervation
Inferior gluteal n
Gluteus medius proximal attachment
external surface of ilium between anterior and posterior gluteal lines and gluteal fascia
Gluteus medius distal attachment
Lateral surface of greater trochanter of the femur
Gluteus medius action
Abducts and medially rotates the thigh, keeps contralateral side from sagging
Gluteus medius innervation
Superior gluteal n
Gluteus minimus proximal attachment
Lateral surface of the ilium between the anterior and inferior gluteal lines
Gluteus minimus distal attachment
Anterior surface of greater trochanter of the femur
Gluteus minimus action
Abducts and medially rotates thigh, keeps contralateral side from sagging
Gluteus minimus innervation
Superior gluteal n
Tensor of fasciae lata proximal attachment
Anterior superior iliac spine
Tensor of fasciae lata distal attachment
Illiotibial tract