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Human A&P > a&p lab torso and legs > Flashcards

a&p lab torso and legs Flashcards

1
Q

rectus abdominis

A

location: lower abbs
origin: pubic crest and symphysis pubis
insertion: costal cartilages of ribs 5-7, xiphoid process of the sternum
action: flexes vertebral column, compresses abdomen

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2
Q

external oblique

A

location: side stocmache muscles
origin: external surfaces of ribs
insertion: anterior iliac crest & abdominal aponeurosis to linea alba
action: flexes bertebral column, rotates verebral column

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3
Q

internal oblique

A

location: in between external and rectus
origin: anterior iliac crest, lateral half of inguinal lifament and thoracoumbar fascia
insertion: costal cartilages of ribs 8-12 abdominal aponeurosis of linea alba
action: flexus vertebral column, rotes verbral column, compresses abdomen

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4
Q

iliacus

A

iliopsoas

location: hip to femur
origin: Iliac fossa within abdomen
insertion: Lowermost surface of lesser trochanter of femur
action: Flexes medially rotates hip

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5
Q

psoas major

A

iliopsoas
location :side of the lumbar region of the vertebral column and brim of the lesser pelvis
origin:Transverse processes of L1-5, bodies of T12-L5 and intervertebral discs below bodies of T12-L4
insertion: Middle surface of lesser trochanter of femur
action: Flexes and laterally rotates hip

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6
Q

gluteus maximus

A

location:

origin: Outer surface of ilium behind posterior gluteal line and posterior third of iliac crest lumbar fascia, lateral mass of sacrum, sacrotuberous ligament and coccyx
insertion: Deepest quarter into gluteal tuberosity of femur, remaining three quarters into iliotibial tract (anterior surface of lateral condyle of tibia)
action: Extends and laterally rotates hip. Maintains knee extended via iliotibial tract

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7
Q

sartorius

A

location:

origin: Immediately below anterior superior iliac spine
insertion: Upper medial surface of shaft of tibia
action: Flexes, abducts, laterally rotates thigh at hip. Flexes, medially rotates leg at knee

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8
Q

gracilis

A

adductors
location:
origin: Outer surface of ischiopubic ramus
insertion: Upper medial shaft of tibia below sartorius
action: Adducts hip. Flexes knee and medially rotates flexed knee

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9
Q

pectineus

A

adductors
location:
origin: Pectineal line of pubis and narrow area of superior pubic ramus below it
insertion: A verticle line between spiral line and gluteal crest below lesser trochanter of femur
action: Flexes, adducts and medially rotates hip

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10
Q

adductor magnus

A

adductors
location:
origin: Adductor portion: ischiopubic ramus. Hamstring portion: lower outer quadrant of posterior surface of ischial tuberosity
insertion: Adductor portion: lower gluteal line and linea aspera. Hamstring portion: adductor tubercle
action: Adductor portion: adducts and medially rotates hip. Hamstring portion: extends hip

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11
Q

adductor longus

A

adductors
location:
origin: Body of pubis inferior and medial to pubic tubercle
insertion: Lower two thirds of medial linea aspera
action: Adducts and medially rotates hip

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12
Q

adductor brevis

A

adductors
location:
origin: Anterior surface of inferior pubic ramus, inferior to origin of adductor longus
Insertion: Pectineal line and superior part of medial lip of linea aspera
Action: Adducts and flexes the thigh, and helps to laterally rotate the thigh

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13
Q

rectus femoris

A

quadriceps
location:
ORIGIN: Straight head: anterior inferior iliac spine. Reflected head: ilium above acetabulum
INSERTION: Quadriceps tendon to patella , via ligamentum patellae into tubercle of tibia
ACTION: Extends leg at knee. Flexes thigh at hip

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14
Q

vastus lateralis

A 
quadriceps
location:
ORIGIN
Upper intertrochanteric line, base of greater trochanter, lateral linea aspera, lateral supracondylar ridge and lateral intermuscular septum 	
INSERTION
Lateral quadriceps tendon to patella, via ligamentum patellae into tubercle of tibia
ACTION
Extends knee
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15
Q

vastus medialis

A 
quadriceps
location:
origin:
insertion:
action:
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16
Q

vastus intermedius

A 
quadriceps
location:
ORIGIN
Lower intertrochanteric line, spiral line, medial linea aspera and medial intermuscular septum 	
INSERTION
Medial quadriceps tendon to patella and directly into medial patella, via ligamentum patellae into tubercle of tibia
ACTION
Extends knee. Stabilizes patella
17
Q

bicep femoris

A

hamstring
location:
ORIGIN
Long head: upper inner quadrant of posterior surface of ischial tuberosity. Short head:middle third of linea aspera, lateral supracondylar ridge of femur
INSERTION
Styloid process of head of fibula. lateral collateral ligament and lateral tibial condyle
ACTION
Flexes and laterally rotates knee. Long head extends hip

18
Q

semimembranosus

A

hamstring
location:
ORIGIN
Upper outer quadrant of posterior surface of ischial tuberosity
INSERTION
Medial condyle of tibia below articular margin, fascia over popliteus and oblique popliteal ligament
ACTION
Flexes and medially rotates knee. Extends hip

19
Q

semitendinosus

A

hamstring
location:
ORIGIN
Upper inner quadrant of posterior surface of ischial tuberosity
INSERTION
Upper medial shaft of tibia below gracilis
ACTION
Flexes and medially rotates knee. Extends hip

20
Q

tibialis anterior

A

location:
ORIGIN
Upper half of lateral shaft of tibia and interosseous membrane
INSERTION
Inferomedial aspect of medial cuneiform and base of 1st metatarsal
ACTION
Extends and inverts foot at ankle. Holds up medial longitudinal arch of foot

21
Q

gastrocnemius

A

location:
ORIGIN
Lateral head: posterior surface of lateral condyle of femur and highest of three facets on lateral condyle. medial head: posterior surface of femur above medial condyle
INSERTION
Tendo calcaneus to middle of three facets on posterior aspect of calcaneus
ACTION
Plantar flexes foot. Flexes knee

22
Q

soleus

A

location:
ORIGIN
Soleal line and middle third of posterior border of tibia and upper quarter of posterior shaft of fibula including neck
INSERTION
Tendo calcaneus to middle of three facets on posterior surface of calcaneus
ACTION
Plantar flexes foot (aids venous return)

Human A&P (13 decks)

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