Gross Anatomy of skeletal system Overview of skeletal system

The Axial Skeleton Forms the longitudinal part of the body Divided into three parts Skull Vertebral column Bony thorax Slide 5.20a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Axial Skeleton Slide 5.20b Figure 5.6 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Skull Two sets of bones Bones are joined by sutures Cranium Facial bones Bones are joined by sutures Only the mandible is attached by a freely movable joint Slide 5.21a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Skull F P S T E O Old People From Texas Eat Spiders Slide 5.21b Figure 5.7 Slide 5.21b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Vertebral Column Vertebrae separated by intervertebral discs seven cervical vertebrae is breakfast at 7 a.m., 12 thoracic is lunch at 12 noon, and five lumbar is dinner at 5 p.m. Vertebrae separated by intervertebral discs The spine has a normal curvature Each vertebrae is given a name according to its location Figure 5.14 Slide 5.28 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Bony Thorax Made-up of three parts Sternum Ribs Thoracic vertebrae Figure 5.19a Slide 5.31b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

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The Appendicular Skeleton Limbs (appendages) Pectoral girdle Pelvic girdle Slide 5.32a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Appendicular Skeleton Figure 5.6c Slide 5.32b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Pectoral (Shoulder) Girdle Composed of two bones Clavicle – collarbone Scapula – shoulder blade These bones allow the upper limb to have exceptionally free movement Slide 5.33 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Shoulder Girdle Figure 5.20a, b Slide 5.34a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Upper Limb The arm is formed by a single bone Humerus Figure 5.21a, b Slide 5.35a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Upper Limb The forearm has two bones Ulna Radius Figure 5.21c Slide 5.35b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Upper Limb The hand Carpals – wrist Metacarpals – palm Sally Left The Party To Take Cathy Home! The hand Carpals – wrist Metacarpals – palm Phalanges – fingers Sally= Scaphoid , Left = Lunate, The = Triquetral , Party=Pisiform, To=Trapezium, Take =Trapezoid, Cathy=Capitate, Home=Hamate Figure 5.22 Slide 5.36 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

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Bones of the Pelvic Girdle Hip bones Composed of three pair of fused bones Ilium Ischium Pubic bone The total weight of the upper body rests on the pelvis Protects several organs Reproductive organs Urinary bladder Part of the large intestine Slide 5.37 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

The Pelvis Slide 5.38a Figure 5.23a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Gender Differences of the Pelvis Figure 5.23c Slide 5.39 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Lower Limbs The thigh has one bone Femur – thigh bone Figure 5.35a, b Slide 5.40a Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Lower Limbs The leg has two bones Tibia Fibula Figure 5.35c Slide 5.40b Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Bones of the Lower Limbs The foot Tarsus – ankle Metatarsals – sole Phalanges – toes Figure 5.25 Slide 5.41 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

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