Chapter 7

Chapter 7

Chapter 1 7 Lecture HUMAN ANATOMY Chapter 7 The Skeletal System: Appendicular Division

Introduction The appendicular skeleton is involved in changing your position in the external environment. Standing Walking Sitting Dressing Driving a car

Introduction Figure 7.1 The Appendicular Skeleton The Pectoral Girdle and the Upper Limb Includes the S-shaped clavicle (collarbone) and the flattened scapula (shoulder blade). The clavicle articulates with the sternums

manubrium; is the only direct connection between the axial skeleton and the pectoral girdle. The scapula is attached to the clavicle anteriorly but has no connection to the actual axial skeleton; instead skeletal muscles and ligaments support it. The Clavicle

Figure 7.3 The Clavicle The Scapula Figure 7.5a,b,c The Scapula Scapula

The Scapula supraspinous fossa superior border subscapular fossa acromion coracoid process glenoid fossa spine medial border

infraspinous fossa lateral border inferior angle infraglenoid tubercle supraglenoid tubercle Figure 7.5d,e,f The Scapula The Upper Limb

Consists of the: Brachium (humerus) Antebrachium (ulna and radius) Wrist (carpals) Hand (metacarpals and phalanges) The Humerus: Anterior Humerus Head

medial epicondyle anatomical neck surgical neck olecranon fossa lateral epicondyle Capitulum greater tubercle Trochlea lesser tubercle

coronoid fossa deltoid tuberosity intertubercular groove Figure 7.6a The Anterior Humerus The Humerus: Posterior Figure 7.6d The Posterior Humerus

The Ulna and Radius: Posterior Ulna Olecranon styloid process trochlear notch coronoid process radial notch

Radius Head Radial tuberosity styloid process ulnar notch Figure 7.7a The Posterior Forearm The Ulna and Radius: Anterior

Figure 7.7d The Anterior Forearm The Wrist and Hand The carpal bones are the eight bones of the wrist. The five metacarpal bones articulate with the distal carpal bones and make up the palm of the hand.

The fourteen phalanges of the hand make up the finger bones. Hand SLTPTTCH The Pelvic Girdle and Lower Limb The pelvic girdle supports and protects the lower viscera and developing fetus in females.

The bones of the pelvic girdle and lower limb are much more massive than their homologues of the upper limb. Consists of two ossa coxae bones. The lower limb includes the thigh (femur), kneecap (patella), leg, (tibia and fibula), ankle (tarsals), and foot (metatarsals and phalanges).

The Pelvic Girdle Ilium iliac crest auricular surface greater sciatic notch iliac fossa anterior superior iliac spine posterior superior iliac spine posterior inferior iliac spine

anterior inferior iliac spine Ischium ischial spine ischial ramus ischial tuberosity Pubis superior ramus inferior ramus symphysis pubis

pubic tubercle Figure 7.10a Lateral Pelvic Girdle The Pelvic Girdle Figure 7.10b Medial Pelvic Girdle The Pelvis

Figure 7.11a Anterior Pelvis Figure 7.11b Posterior Pelvis The Pelvis: Male vs. Female The male and female pelvis contains numerous differences. Generally the male pelvis is heavier with more

prominent markings due to the larger muscles attached to it. The Pelvis Figure 7.12a Superior Pelvis Figure 7.12c Inferior Pelvis

The Pelvis: Male vs. Female Characteristics of the female pelvis:

Enlarged pelvic outlet, due to wider ischial spines Less curvature of the sacrum and coccyx Wider, more circular pelvic inlet Broader, lower pelvis Widely fanning ilia Pubic angle greater than 100 The Femur: Anterior Femur

Head Neck greater trochanter lesser trochanter intercondylar fossa patellar surface linea aspera fovea capitis medial condyle

lateral condyle intertrochanteric line intertrochanteric crest Figure 7.14a The Anterior Femur The Femur: Posterior Figure 7.14d The Posterior Femur

The Patella Figure 7.15 The Patella The Tibia and Fibula: Anterior Tibia lateral condyle medial condyle

tibial tuberosity intercondylar eminence medial malleolus fibular notch Fibula Head lateral malleolus shaft

Figure 7.16a The Anterior Tibia and Fibula The Tibia and Fibula: Posterior Figure 7.16d The Posterior Tibia and Fibula The Ankle and Foot Seven tarsal bones make up the ankle. The five metatarsal bones articulate with

the distal tarsal bones and make up the arches of the foot. The fourteen phalanges of the foot make up the toe bones. Foot Tarsals Talus Calcaneus

Cuboid navicular cuneiforms - 1st, 2nd, 3rd 3 Arches

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