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