The Skeletal System: The The Skeletal System: The Appendicular SkeletonAppendicular Skeleton

A. Pectoral girdleA. Pectoral girdle

B. Upper extemityB. Upper extemity

C. Pelvic girdleC. Pelvic girdle

D. Lower extremityD. Lower extremity

E. Arches of the footE. Arches of the foot

Pectoral GirdlePectoral Girdle

1. clavicle1. clavicle

2. scapula2. scapula

ClavicleClavicle1. joints a. sternoclavicular b. acromioclavicular2. functions

ScapulaScapula1. no bony attachments to axial skeleton1. no bony attachments to axial skeleton

2. glenohumeral joint2. glenohumeral joint

3. functions3. functions

Function of the Pectoral GirdleFunction of the Pectoral Girdle1. no articulations with vertebral 1. no articulations with vertebral columncolumn

2. not very stable2. not very stable

3. wide range of motion allowed3. wide range of motion allowed

Bones of the Upper ExtremityBones of the Upper Extremity

humerushumerus

radius and ulnaradius and ulna

carpals (8)carpals (8)

phalanges (14)phalanges (14)

Bones of the Upper Extremity

Bones of the Upper Extremity

Pelvic GirdlePelvic Girdle1. coxal bones1. coxal bones

2. sacroiliac joints2. sacroiliac joints

3. pubic symphysis3. pubic symphysis

Coxal BonesCoxal Bones

1. ilium1. ilium

2. ischium2. ischium

3. pubis3. pubis

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4. acetabulum4. acetabulum

PelvisPelvis1. pelvic brim1. pelvic brim2. false pelvis 2. false pelvis vsvs true pelvis true pelvis3. pelvic inlet 3. pelvic inlet vsvs pelvic outlet pelvic outlet4. pelvic axis4. pelvic axis

__________________________________obstetric concernsobstetric concerns

Bones of the Lower ExtremityBones of the Lower Extremity

femurfemur

patellapatella

tibia and fibulatibia and fibula

tarsals (7)tarsals (7)

phalanges (14)phalanges (14)

Bones of the Lower ExtremityBones of the Lower Extremity

Bones of the Lower ExtremityBones of the Lower Extremity

Arches of the FootArches of the Foot

1. longitudinal arch1. longitudinal arch

a. medial (inner)a. medial (inner)

b. lateral (outer)b. lateral (outer)

2. transverse arch2. transverse arch

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3. functions3. functions