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

Question 1

Iliacus

Answer 1

Attaches to the lesser trochanter of the femur

Pulls the femur up, flexes the thigh and hip joint lines the iliac fossa

Question 2

Psoas Major

Answer 2

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

Question 3

Psosa Minor

Answer 3

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

Question 4

Sartorius

Answer 4

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

Question 5

Rectus Femoris

Answer 5

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

Question 6

Vastus

Answer 6

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

Question 7

Fascia Lata

Answer 7

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

Question 8

Iliotibial band

Answer 8

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

Question 9

5 muscles on the inside of the thigh

Answer 9

Act to adduct the limb, back into anatomical postion

Question 10

Tensor facia Lata

Answer 10

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

Question 11

Gracilis

Answer 11

Groin pulled this muscle

Can rip in awkward falls

Question 12

Pectineus

Answer 12

Pelvis to groin

Question 13

Adductor Brevis

Answer 13

Deep to longus and magmus can be torn/ ripped

Question 14

Gluteus Maximus

Answer 14

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

Question 15

Stroke

Answer 15

Will effect the gluteal muscles and effect walking

Question 16

Hamstring muscles

Answer 16

Butchers noticed that other side was long and stringy

All these muscles originate at the ischial tuberosity

Question 17

Dorsiflexion

Answer 17

Walking on heels, uses the tibialis anterior lifts toes

Question 18

Big toes has two tendons

Answer 18

Extensor hallucis longus and extensor digitorum brevis

Question 19

Plantarflexion

Answer 19

Walking on toes Push off in walking phase

Question 20

Calf Muscles

Answer 20

Gastrocneumis and soleus

Question 21

High heels

Answer 21

Shorten the achilleus

Question 22

Plantar fassa

Answer 22

Thicker than the palm by A LOT

Muscles of the foot are the same as hands

Question 23

Meniscus

Answer 23

Torn = joint will lock, cannot be repaired only removed

Medial is torn more.