thigh and knee Flashcards

1
Q

how do the femur and tibia articulate?

A

-medial femoral condyle articulates with medial tibial condyle
-lateral femoral condyle articulates with lateral tibial condyle

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2
Q

what does the the patella articulate with?

A

femur

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3
Q

how does the meniscus add stability to the knee?

A

the meniscus adds more depth in the tibia for the femur to sit in

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4
Q

what tendons/ligaments are superior and inferior to the patella?

A

quadriceps tendon is superior and patellar tendon/ligament is inferior

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5
Q

4 ligaments that support the knee

A

anterior and posterior cruciate ligaments

lateral and medial collateral ligaments

*meniscus supports the joint

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6
Q

how do ligaments of the knee resist motion?

A

by stretching

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7
Q

attachment sites of the knee ligaments

A

ACL/PCL
-acl= anterior tibia/posterior femur
-pcl=posterior tibia/anterior femur

MCL/LCL
-mcl=femur/tibia
-lcl=femur/fibula

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8
Q

muscles in anterior compartment of upper leg

A

-iliopsoas
-sartorius
-quadriceps (4 muscles)

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9
Q

muscles in medial compartment of upper leg

*peanut butter leaves me greasy

A

-pectineus
-adductor brevis
-adductor longus
-adductor magnus
-gracilis

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10
Q

muscles in posterior compartment of upper leg

A

hamstrings

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11
Q

origin, action, insertion, and innervation of iliopsoas

A

*this is combo of psoas major and iliacus so it has spinal nerve and femoral nerve innervation

origin
psoas- lumbar vertebra L1-L5
iliacus- iliac fossa

action
trunk- flexion and stabilization
hip- flexion and lateral rotation

insertion
-lesser trochanter of the femur

innervation
psoas- L1-L4 (mainly L2/3)
iliacus- femoral nerve

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12
Q

origin, insertion, innervation, action of quadriceps *note this is 4 muscles

*slide 12 KM ppt

A

origin
1-rectus femoris= AIIS
2-vastus medialis= linea aspera (medial hip)
3-vastus lateralis= linea aspera (lateral hip)
4-vastus intermedius= anterolateral shaft of the femur

insertion
-tibial tuberosity
innervation
-femoral nerve L2-L4

action
-hip=rectus femoris only; hip flexion
-knee= knee extension

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13
Q

what quad muscle flexes hip? THIS IS THE ONLY ONE THAT DOES THIS OF THE QUADS

A

rectus femoris *crosses hip

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14
Q

origin, insertion, innervation, action of sartorius

A

origin- ASIS
insertion- pes anserine *on prox tibia
innervation- femoral nerve
action
- hip=flexion, abduction, and lateral rotation
-knee= flexion

*FIGURE FOUR MUSCLE
*MOST SUPERFICIAL

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15
Q

pectineus

A

origin-superior pubic ramus
action- hip=weak flexion and adduction
insertion- pectineal line of posterior femur
innervation- obturator and femoral nerve (L2-4)

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16
Q

adductor brevis

A

origin- inferior pubic ramus

action-hip= adduction and medial rotation

insertion
-medial linea aspera
-pectineal line

innervation- obturator nerve L2-4

17
Q

adductor longus

A

origin-pubic tubercle
insertion-medial lip linea aspera
nerve-obturator
action- hip adduction and medial rotation

18
Q

adductor magnus

A

*TWO PARTS= adductor part and hamstring part

origin
adductor-inferior pubic ramus, ischial ramus
hamstring-ischial tuberosity

insertion
adductor-medial lip linea aspera
hamstring-adductor tubercle

nerve
adductor-obturator nerve
hamstring-tibial nerve (off sciatic nerve)

action
adductor-adduct and medially rotate hip
hamstring-hip extension

19
Q

gracilis

A

origin= inferior pubic ramus
insertion= pes anserine (prox tibia)
nerve=obturator nerve
action:
hip= adduction and medial rotation
knee=flexion

20
Q

what does a muscle have to do in order to act on the hip?

A

cross the hip

21
Q

biceps femoris *two heads

A

origin
-long head=ischial tuberosity
-short head=linea aspera lateral hip

insertion= head of fibula

innervation *both branches of sciatic
-long head=tibial nerve
-short head=common fibular nerve

action
-hip=long head does extension and lateral rotation
-knee=entire muscle FLEXES knee

22
Q

semitendinosus

A

origin=ischial tuberosity

insertion=pes anserine (prox tibia)

innervation= tibial nerve *branch of sciatic

action
-hip=extension and medial rotation
-knee= flexion

23
Q

semimebranosus

A

origin=ischial tuberosity

insertion=posterior medial tibial condyle

innervation= tibial nerve

action
hip= extension and medial rotation
knee=flexion

24
Q

rotational influence on tibia when KNEE IS FLEXED

A

knee lateral rotation
-biceps femoris (whole muscle)

knee medial rotation
-sartorius
-gracilis
-semitendinsous
-semimembranosus

25
Q

sensory part of anterior femoral nerve

A

continues distal to knee as saphenous nerve; sensory only

26
Q

branches from posterior division of femoral nerve

A

1=nerve to rectus femoris (M)
2=nerve to vastus lateralis (M)
3=nerves to vastus intermedius (M)
4=nerves to vastus medialis (M)
5=saphenous nerve (sensory)

27
Q

femoral nerve branches from trunk

A

1=nerve to iliacus
2=nerve to pectineus

28
Q

femoral nerve branches from anterior division

A

1=nerve to sartorius (motor)
2= medial cutaneous nerve (sensory)
3= intermediate cutaneous nerve (sensory)

29
Q

sciatic nerve (L4-S3)

A

-branches off lumbosacral plexus

branches into
-tibial nerve
*motor to hamstrings and distal leg
-common fibular nerve
*motor to distal leg

passes through greater sciatic foramen

30
Q

borders of the femoral triangle

A

superior-inguinal ligament
lateral-sartorius
medial- adductor longus

31
Q

what does the femoral triangle contain? NAVL

A

Nerve
Artery *site of femoral pulse
Vein
Lymphatics= containing femoral canal

*femoral canal contains:
-fat, lymph, deep inguinal lymph nodes, loose connective tissue
-proximal opening is femoral ring

32
Q

arteries of the thigh

A

aorta> R and L common iliac artery > external and internal iliac artery

external iliac > femoral artery>profunda femoris > medial and lateral circumflex artery
internal iliac > obturator artery *in 20% of pop arises from inferior epigastric

33
Q

superior branch off femoral artery

A

profunda femoris artery (also called deep femoral artery)

this artery branches into medial and lateral circumflex arteries

medial-supplies head/neck femur
lateral-supplies some muscles of lateral thigh

34
Q

anterior and posterior thigh venous system

A

anterior: great saphenous vein > femoral vein

posterior: small saphenous vein > popliteal vein > femoral vein

*femoral vein deep and saphenous is superficial

35
Q

bursa of the knee

A
  1. suprapatellar bursa= between distal femur and quadriceps
  2. prepatellar bursa= anterior to patella
  3. anserine bursa= at pes anserine
36
Q

patellar ligament reflex

A

-tests integrity of femoral nerve and l2-l4 spinal nerves
-reflex occurs as signal does not go to the brain