BSC Lab 5 - Unit 7

The Appendicular Skeleton

What is the appendicular skeleton composed of?

• Pectoral girdle 

• Upper limbs

• Pelvic girdle

• Lower limbs

What two bones make up the pectoral girdle?

• Clavicle (collarbone)

• Scapula (shoulder blade)

How to determine R/L for shoulder blade?

Direction of the wing from anterior side, humerus fits on the outside (R/L mirrored)

Medial/Sternal end

*flat, L

Lateral/Acromial end

*rounded, L

Spine

*posterior

Acromion

Coracoid process

Superior border

Medial border

Lateral border

Glenoid cavity

Glenoid cavity

Greater tubercle

Lesser tubercle

Intertubercular sulcus

Head of Humerus

Anatomical neck

Radial fossa

Coronoid fossa

Capitulum

Medial epicondyle

Trochlea

Anatomical neck

Head of Humerus

Surgical neck

Olecranon fossa

Lateral epicondyle

Medial epicondyle

Trochlea

Greater tubercle

Humerus - posterior

*one depression

Humerus - anterior

*2 depressions

How to determine R/L of humerus?

Follow direction of head from anterior side

What type of bones are carpals?

Short bones

Distal phalanges

Middle phalanges

Proximal phalanges

Hamate

*under IV

Capitate

*under III

Pisiform

*sits ontop

Triqueform

*under V

Lunate

*2nd under IV

Trapezoid

*under II

Trapezium

*under I/thumb

Scaphoid

*largest

What 3 parts make up the pelvic girdle?

• Illium

• Ischium

• Pubis

Male or Female?

Male

Male or Female?

Female

Obturator foramen

Pubic symphysis

Pubic arch

Pelvic inlet

Anterior superior iliac spine

Anterior inferior iliac spine

Acetabulum

What type of bone is the patella?

Sesamoid

Base

Apex

How to determine R/L femur?

Follow direction of head from anterior side

Neck of femur

Fova capitis

Head of femur

Intertrochanteric line

Lesser trochanter

Lateral epicondyle

Medial epicondyle

Patellar surface

Head of femur

Greater trochanter

Fovea capitis

Lesser trochanter

Linea aspera

Intercondylar fossa

Lateral epicondyle

Lateral condyle

Medial epicondyle

Medial condyle

Distal phalanges

Middle phalanges

Proximal phalanges

Lateral cuneiform

*under III

Intermediate cuneiform

*under II

Medial cuneiform

*under I

Cuboid

*under IV

Navicular

*under I and II

Talus

*sits on top

Calcaneus

*tib/fib attach

What side is the radius on?

Thumb side

*Radius = Right = Thumbs up = thumb side

Which is larger, Tibia or Fibula?

Tibia

Medial malleolus

Anterior crest 

*shin

Lateral condyle

Medial condyle

Intercondylar eminence

Interosseous membrane

Lateral malleolus

Distal tibiofibular joint

Proximal tibiofibular joint

How to determine R/L tibia?

Follow direction of head from anterior side, that side is medial