Kerri Procida Power Point Presentation Upper Anatomy Extremities Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 1 Axial • neck • trunk Appendicular •upper limbs •lower limbs Cranial • brain • within the axial cavity Vertebral • spinal cord • within the axial cavity Thoracic • organs are viscera • within the axial cavity Abdominopelvic • organs are viscera 2 Frontal • Forms the anterior portion of the skull • Is one bone, grows in 2 parts •Includes: • forehead • roof of nasal cavity • roofs of orbits • frontal sinuses 3 • Includes: • cervical vertebrae (7) • thoracic vertebrae (12) • lumbar vertebrae (5) • sacrum • coccyx 4 • Extends from skull to pelvis • Forms vertical axis • Composed of many bony parts called vertebrae • Separated by intervertebral discs • Connected by ligaments • Function is to support head and trunk of body • Cervical curvature • Thoracic curvature • Lumbar curvature • Sacral curvature • Rib facets • Vertebra prominens 5 • Triangular shape • Composed of five fused vertebrae • Located between hip bones • Forms the posterior wall • Includes: • median sacral crest • posterior sacral foramina • posterior wall of pelvic cavity • sacral promontory 6 • Also called tailbone • Lowest part of vertebrae column • Variations of 3-5 • Attached by ligaments • Serves as attachment for muscles • Four fused vertebrae • around age 25-30 7 • Includes: • Ribs • Sternum •Function: • Supports shoulder girdle and upper limbs • Protects viscera • Role in breathing 8 • True ribs (7) • False ribs (5) • floating (2) 9 • Also called breastbone • Midline in anterior portion of thoracic cage • Develops in 3 parts: • upper manubrium • middle body • lower xiphoid 10 • Also called shoulder girdle • Composed of 4 parts: • clavicles (2) • scapulae (2) • Supports upper limbs • Incomplete ring • Attachment for several muscles 11 • Help hold shoulders in place • Very weak • Slender, rod-like bones • Elongated S-shapes • Located at base of neck • Provide attachments for muscles for: • upper limbs • chest • back • Articulate with scapulae (acromion process) •Articulate with manubrium 12 • Divided into unequal parts by the spine • Supraspinous fossa (above spine) • Infraspinous fossa (below spine) • Acromion process • Coracoid process • Glenoid cavity 13 • Composed of: • Humerus • Radius • Ulna • Carpals • Metacarpals • Phalanges 14 • Head • 2 processes (provide attachments for muscle movement: • Greater tubercle • Lesser tubercle • Anatomical neck • Surgical neck • Deltoid tuberosity • Capitulum • Trochlea • Coronoid fossa • Olecranon fossa 15 • Located on thumb side of forearm • Shorter then ulna • Radial notch • allows rotation • Radial tuberosity • attachment for muscle (biceps brachii) • Styloid process • attachment for ligaments of wrist 16 • Overlaps humerus • Trochlear notch • wrench-like opening • Olecranon process • above trochlear notch • attachment for muscle (triceps brachii) • Coronoid process • below trochlear notch • Styloid process • distal end of ulna • attachment for ligaments of wrist 17 • Carpals (16) • trapezium • trapezoid • capitate • scaphoid • pisiform • triquetrum • hamate • lunate • Metacarpals (10) • Phalanges (28) • proximal phalanx • middle phalanx • distal phalanx 18 • Consists of (2) hip bones • coxal bones • pelvic bones • innominate bones • Supports trunk of body • Attachment for lower limbs • Sacrum, Coccyx, Pelvic Girdle • Protects: • urinary bladder • distal end of large intestine • internal reproductive organs 19