Appendicular Skeleton
• Girdles
– Pectoral or shoulder
– Pelvic
• Upper Limbs
–
–
–
–
–
Arm (brachial)
Forearm
(Radius and Ulna)
Wrist (carpal)
Hand (manual)
• Lower Limbs
–
–
–
–
Fig. 7.1
Thigh (femoral)
Leg
(tibia and fibula)
Foot (pedal)
7-1
Pectoral Girdle
• Scapula (2)
– Acromion process
• Forms protective cover
• Attachment for clavicle
• Attachment for muscles
– Coracoid process
• Attachment for muscles
– Glenoid cavity/fossa
• Articulates with
humerus
• Clavicle (2)
Fig. 7.24
7-2
Arm
• Humerus
– Head
– Tubercles
• Greater and lesser
– Intertubercular groove
– Capitulum
• Articulates with the
cupshaped depression
on the head of the
radius
– Trochlea
Fig. 7.25
• Articulates with
olecronon process of
the ulna
– Epicondyles
• Attachment of forearm
7-3
muscles
Forearm
• Radius
– Thumb side
– Head
– Styloid process
• Ulna
Fig. 7.26
–
–
–
–
–
Little finger side
Trochlear notch
Olecranon process
Radial notch
Styloid process
7-4
Wrist and Hand
• Wrist
– 8 carpal bones
– Sally Left The
Party To Take
Cathy Home
Fig. 7.27
•
•
•
•
•
•
•
•
Scaphoid
Lunate
Triquital
Pisiform
Trapezium
Trapezoid
Capitate
Hamate
7-5
Pelvis
• Coxae: Right and Left
– Ilium
– Ischium
• Sit down bone
– Pubis
• Symphysis pubis
Fig. 7.30
Fig. 7.31
• Acetabulum
• Obturator foramen
• Sacrum
7-6
Thigh
• Femur
– Head
– Neck
– Trochanters
• Greater and lesser
– Condyles
• Medial and lateral
– Epicondyles
• Medial and lateral
• ___________________
or kneecap
Fig. 7.34
7-7
Leg
• Tibia
– Larger and supports
most of weight
– Tibial tuberosity
– Medial malleolus
• Fibula
– Articulates with tibia
not femur
– Lateral malleolus
Fig. 7.36
7-8
Foot
• Tarsals (7)
–
–
–
–
Talus (ankle bone)
Navicular
Medial Cuneiform
Intermediate
Cuneiform
– Lateral Cuneiform
– Cuboid
– Calcaneus (heel)
Fig. 7.38
7-9
Points to Remember
• Appendicular skeleton includes bones of
upper and lower limbs and pectoral and
pelvic girdles
• Pectoral girdle and upper limb held in place
largely by muscles
• Pelvic girdle has strong articulation with
sacrum to help support weight of body
7-10
Questions?
7-11