All the muscles for exam 1 Flashcards
1
Q
Superficial transverse perineal muscle
- origin
- insertion
- action
- innervation
- where located?
A
- ischiopubic ramus and ischaol tuberosity
- central tendon perineum
- stabilize the central tendon
- perineal branch of the pudendal nerve
- in the superficial pouch between the subQ tissue and the perineal membrane
2
Q
ischiocavernosus muscle
- origin
- insertion
- action
- innervation
- where located?
A
- ischiopubic ramus and ischial tuberosity
- corpus cavernous of penis and clitoris
- maintains the erection of the penis and clitoris by compressing the venous drainage
- innervated by the perineal branch of the pudendal nerve
- in the superficial pouch
3
Q
Bulbospongiosus muscle
- origin
- insertion
- action
- innervation
- where located?
A
- central tendon of the perineum
- inferior fascia of the urogenital diaphragm and the spongiosum of the penis
- pubic arch and root of dorsal of the clitoris in female - micturition and propel semen in the urethra; also helps with erections
- perineal branch of the pudendal nerves
- superficial pouch
4
Q
Gluteus maximus
- origin
- insertion
- action
- innervation
- where located?
- vasc supply
A
- posterior gluteal line of alum, surfaces of sacrum, coccyx, sacrotuberous ligament
- gluteal tuberosity and iliotibial tract
- extends and externally rotates the thigh; extends the pelvis by reverse action when lower limb is flexed; rising from a seated position, climbing, etc
- inferior gluteal nerve
- booty
- inferior gluteal artery from the internal iliac
5
Q
Describe the gluteus minimus in terms of
- origin
- insertion
- action
- innervation
- blood supply
A
- ileum between the anterior and inferior gluteal lines
- anterior border of the greater trochanter
- hip abduction with a free hanging limb
- superior gluteal nerve
- superior gluteal artery
6
Q
Describe the tensor of the fascia lata in terms of
- origin
- insertion
- action
- innervation
- blood supply
A
- outer lip of the iliac crest and ASIS
- iliotibial tract
- hip abduction with a free hanging limb AND thigh medial rotator
- superior gluteal nerve
- superior gluteal artery from the internal iliac
7
Q
Describe the gluteus medius muscles in terms of
- origin
- insertion
- action
- innervation
- blood supply
A
- ilium between the anterior and posterior gluteal lines and gluteal aponeurosis
- anterior border of the greater trochanter
- hip abduction with a free swinging limb
- superior gluteal nerve
- superior gluteal artery from the internal iliac
8
Q
Iliopsoas
- origin
- insertion
- action
- innervation
- where located?
A
- a. iliac portion from the iliac fossa: ala of sacrum and adjacent ligaments
b. psoas major part: sides of the bodies of the lumbar vertebrae and discs of the transverse processes - lesser trochanter
- flexes and internally rotates the hip; psoas major also laterally bends the lumbar vertebral column
- iliac via the femoral nerve and the psoas major from L1-L3
- anterior thigh
9
Q
Sartorius (IN SLIDES 3 TIMES)
- origin
- insertion
- action
- innervation
- where located?
A
- ASIS
- upper part of the medial surface of the tibia
- flexes, abducts, and externally rotates the hip; flexes and internally rotates the knee
- femoral nerve (L2-L3)
- anterior thigh
10
Q
Pectineus
- origin
- insertion
- action
- innervation
- where located?
A
- pectineal line of pubis
- upper half of pectineal line of femur
- flexes, adducts, and internally rotates the hip
- femoral nerve (L2-L3)
- anterior thigh
11
Q
Rectus femoris
- origin
- insertion
- action
- innervation
- where located?
A
- AIIS and posterosuperior aspect of the rim of the acetabulum
- tibial tuberosity via the patellar tendon
- extends knee and flexes the hip
- femoral nerve (L2-L4)
- part of the quadriceps complex
12
Q
vastus lateralis
- origin
- insertion
- action
- innervation
- where located?
A
- intertrochanteric line, lateral muscular septum and a ton of other shit (Lecture 7 slide 24)
- tibial tuberosity via patellar tendon
- extends knee
- Femoral nerve (L2-L4)
- anterior thigh muscle- part of the quadriceps complex
13
Q
vastus medialis
- origin
- insertion
- action
- innervation
- where located?
A
- intertrochanteric line, medial inter muscular septum
- tibial tuberosity via the patellar tendon
- extends the knee
- femoral nerve (L2-L4)
- anterior thigh- part of the quadriceps complex
14
Q
Vastus intermedius
- origin
- insertion
- action
- innervation
- where located?
A
- upper 2/3 of the femoral shaft and distal half of the intramuscular septum
- tibial tuberosity via the patellar tendon
- extends the knee
- femoral nerve (L2-L4)
- part of the quadriceps complex; anterior thigh muscle
15
Q
gracilis
- origin
- insertion
- action
- innervation
- where located?
A
- front of body of pubis and inferior ramus of pubis
- upper part of the medial surface of the shaft of tibia
- adducts hip, flexes knee, and assists in internal rotation of tibia on femur
- anterior division of obturator nerve (L2-L3)
- medial thigh