Lecture 5: Muscles of the lower limbs and the Knee Joint Flashcards Preview

Anatomy Exam 3 > Lecture 5: Muscles of the lower limbs and the Knee Joint > Flashcards

Flashcards in Lecture 5: Muscles of the lower limbs and the Knee Joint Deck (23)
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1

Iliacus

Attaches to the lesser trochanter of the femur
Pulls the femur up, flexes the thigh and hip joint lines the iliac fossa

2

Psoas Major

Attaches at the trochanter
Comes from the flank
Contracts with the iliacs, does the same as the ilacus, Often called the same muscles but with two segments

3

Psosa Minor

Ends at the pelivs
Not a sigfig muscle
Not responsible for walking
only in 60% of people
Very eep in the pevlic region

4

Sartorius

Tailor muslce
Used it when you sit down and cross legs,
Longest muscle of the the body
Flex hip and knee joint

5

Rectus Femoris

Straight portion
Only one of four quadriceps that originates at the pelvis
Others originate at the femur,
Flexes the hip joint

6

Vastus

Large, wide, thick and strong
Lateralis and medialis
Muscles fibers run toward the knee
Intermedius much deeper
Quads move the patella
Tendon and ligament pull and extend the knee joint

7

Fascia Lata

Embrace the buttox and thigh, and first portion of the leg
Wraps around the legs
Holds the components of muscles together

8

Iliotibial band

Can be cut and rotated into the knee joint, replace torn ligaments

9

5 muscles on the inside of the thigh

Act to adduct the limb, back into anatomical postion

10

Tensor facia Lata

Stabilization of the knee, weight bearing, flexes when weight is put on it

11

Gracilis

Groin pulled this muscle
Can rip in awkward falls

12

Pectineus

Pelvis to groin

13

Adductor Brevis

Deep to longus and magmus can be torn/ ripped

14

Gluteus Maximus

Powerful extensor
used when jumping, important to proper walking
protects the ischial tuberosity

15

Stroke

Will effect the gluteal muscles and effect walking

16

Hamstring muscles

Butchers noticed that other side was long and stringy
All these muscles originate at the ischial tuberosity

17

Dorsiflexion

Walking on heels, uses the tibialis anterior lifts toes

18

Big toes has two tendons

Extensor hallucis longus and extensor digitorum brevis

19

Plantarflexion

Walking on toes Push off in walking phase

20

Calf Muscles

Gastrocneumis and soleus

21

High heels

Shorten the achilleus

22

Plantar fassa

Thicker than the palm by A LOT
Muscles of the foot are the same as hands

23

Meniscus

Torn = joint will lock, cannot be repaired only removed
Medial is torn more.