lab practical 2

19

Sartorius

Origin: anterior superior iliac of spine of pelvis

Insertion: upper tibia

Action: flexion, abduction, lateral rotation of thigh; flexion and medial rotation of lower leg
Innervation: femoral nerve

20

Gracilis

Origin: Ischiopubic ramus of pubic bone

Insertion: upper tibia

Action: adduction and flexion of thigh; flexion and medial rotation of lower leg
Innervation: obturator nerve

5

Vastus lateralis

Origin: Greater trochanter of femur- dorsolateral surface

Insertion: patella

Action: extension of leg
Innervation: femoral nerve

15

Gluteus medius

Origin: gluteal surface of ilium

Insertion: greater trochanter of femur

Action: abduction, extension, and rotation of thigh; stabilization of hip joint
Innervation: superior gluteal nerve

2

Gluteus maximus

Origin: gluteal surface of ilium

Insertion: gluteal tuberosity of femur

Action: extension, lateral rotation, and abduction of thigh at hip
Innervation: inferior gluteal nerve

31

Tensor fasciae latae

Origin: iliac crest

Insertion: illiotibial tract
Action: flexion, medial rotation, abduction of thigh at hip; stabilization of hip.
Innervation: superior gluteal nerve

39

Biceps femoris

Origin: tuberosity of ischium, linea aspera, femur
Insertion: head of fibula
Action: flexion and lateral rotation of lower leg, extension of thigh
Innervation: tibial nerve

37

Gastrocnemius

Origin: both epicondyles and patella
Insertion: proximal end of calcaneus (Achilles tendon)
Action: plantar flexion of foot, flexes leg at knee
Innervation: tibial nerve

34

Tibialis anterior

Origin: Lateral shaft of tibia & head of fibula
Insertion: Medial surface of 1st metatarsal
Action: dorsiflexion and inversion of foot
Innervation: deep fibular nerve

4

Extensor digitorium longus

Origin: Lateral epicondyle of femur
Insertion: Tendons to 2nd & terminal phalanges of each digit
Action: extension of digits 2-5; dorsiflexion and eversion of foot
Innervation: deep fibular nerve

29

Peroneus longus

Origin: Head and lateral surface of shaft of fibula
Insertion: 1st & 5th metatarsals & slender branches to other metatarsals
Action: eversion and plantar flexion of foot; supports transverse arch of foot
Innervation: Superficial fibular nerve

Pectineus

Origin: pectineal line of pubic bone
Insertion: pectineal line of femur
Action: adduction, flexion, and rotation of thigh
Innervation: femoral nerve, occasionally obturator nerve

36

Adductor longus

Origin: pubic bone just below crest
Insertion: linea aspera of femur
Action: extension and medial rotation thigh
Innervation: obturator nerve, and branch from sciatic

11

Rectus femoris

Origin: anterior inferior iliac spine
Insertion: patella
Action: extension of leg, flexion of hip
Innervation: femoral nerve

8

Vastus medialis

Origin: medial side of femur
Insertion: patella
Action: extension of leg
Innervation: femoral nerve

18

Vastus intermedius

Origin: anterolateral femur
Insertion: patella
Action: extension of leg
Innervation: femoral nerve

35

Semimembranosus

Origin: ischial tuberosity
Insertion: medial condyle of tibula
Action: flexion and medial rotation of leg
Innervation: tibial nerve

10

Semitendinosus

Origin: ischial tuberosity
Insertion: upper tibia
Action: flexion and medial rotation of leg
Innervation: tibial nerve

13

Soleus

Origin: lateral surface of fibula head and proximal part of ventral border of fibula
Insertion: proximal end of calcaneus along with Achilles tendon
Action: flexion of lower leg, plantarflexion of foot
Innervation: tibial nerve

16

Plantaris

Origin: lower part of supercondyler ridge of femur
Insertion: posterior part of calcaneus along with Achilles tendon
Action: flexion of lower leg, plantar flexion of foot
Innervation: tibial nerve

blue arrow

Flexor digitorum longus

Origin: Head of fibula & shaft of tibia
Insertion: Tendon of flex. hallucis longus which divides
Action: flexion of distal phalanges 2-5; inversion and plantarflexion of foot
Innervation: tibial nerve

under blue arrow

Flexor hallucis longus

Origin: Shaft of tibia & fibula
Insertion: Tendon of flexor dig. longus
Action: flexion of distal phalanx digit 1; inversion and plantarflexion of foot
Innervation: tibial nerve, deep fibular branch

24

sciatic nerve

39

renal cortex

3

renal pyramid

22

renal sinus

36

major calyx

T

minor calyx

Q

renal pelvis

P

renal medulla

N

renal papilla

S

renal column