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Bones of lower limbs, Lecture notes of Anatomy

Bone: Lower limb -. Bones of lower limbs. ○Including bones of pelvic girdle (hip bones) and lower limb. ○compared with upper limb.

Typology: Lecture notes

2021/2022

Uploaded on 09/27/2022

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Bone: Lower limb -
Bones of lower limbs
Including bones of pelvic girdle (hip
bones) and lower limb
compared with upper limb
no equivalent movements to
pronation and supination in upper
limb;
more stable in lower limb, for
weight-bearing
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe
pff
pf12
pf13
pf14
pf15
pf16
pf17
pf18
pf19
pf1a
pf1b
pf1c
pf1d
pf1e
pf1f
pf20
pf21
pf22
pf23
pf24
pf25
pf26
pf27
pf28
pf29
pf2a
pf2b
pf2c
pf2d
pf2e
pf2f
pf30
pf31
pf32
pf33
pf34
pf35
pf36
pf37
pf38
pf39
pf3a
pf3b
pf3c
pf3d
pf3e
pf3f
pf40
pf41
pf42
pf43
pf44
pf45
pf46

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Bones of lower limbs

Including bones of pelvic girdle (hip

bones) and lower limb

compared with upper limb

no equivalent movements to pronation and supination in upper limb; more stable in lower limb, for weight-bearing

Bony pelvis

Ilium

ischium

pubis

Right pelvis Post. view

Ilium (medial

surface)-

obturator foramen

iliac fossa

a.s.i.s.; p.s.i.s.

iliac crest: a.s.i.s. – p.s.i.s.

greater sciatic notch (g.s.n.) (^) Obturator foramen

g.s.n.

a.s.i.s.

Right pelvis Ant. view

Ilium (medial

surface)-

ala (iliac fossa)

Body of ilium

ridge between upper and lower part of iliac arcuate line

articular surface for sacrum (auricular face)

attachment for ligaments (sacroiliac joint)

iliac tuberosity

Obturator foramen

g.s.n.

Right pelvis Post. view

Ischium

body of ischium

lesser sciatic notch

ischial tuberosity

ischial spine

ischial ramus : with inf.

ramus of pubis → ischiopubic ramus

Right pelvis Post. view

Pubis:

body of pubis

pubic crest

public tubercle

sup. pubic ramus:

pectineal line on its sup. border, continues into arcuate line

inf. pubic ramus

obturator foramen

Right pelvis Ant. view

Obturator canal

obturator canal :

at the upper, posterior angle of obturator foramen (obturator n.,a.,v.)

Right pelvis Ant. view

Pubis:

external

acetabulum :

acetabular notch, limbus

Gluteal line

Anterior Posterior Inferior

Right pelvis Post. view

Pubic symphysis

cartilaginous joint (fibrous cartilage)as a landmark of pelvic cavity

Pelvis:

anatomical

position

a.s.i.s. and

symphysis

pubis on the

same coronal

plane

Right pelvis^ symphysis

Pelvis: female vs. male

Shape: circular in female (less distinct promontory,

broader alae); heart-shaped in male

Angle: larger in female; smaller in male

Bone: Lower limb - 19

Pelvic outlet

not on the same plane; line joining the ischial tuberosities of both sides divides it into two parts

Right pelvis Ant. view

The sacro-iliac joint-

synovial joint in childhood; fibrous bands in joints of adult;

> 50 years old, completely fibrous

supported by many tough ligaments including:

interosseous lig., ant.& post. sacroiliac lig., sacrospinous lig. , sacrotuberous lig.