2401 Anatomy & Physiology I Exercise 15 The Appendicular Skeleton What you need to Identify the following and bone markings on a complete or disarticulated skeleton. For paired bones, distinguish left from right. Structure in red are optional. Bones of the Pectoral Girdle and Upper Extremity Pectoral (Shoulder) Girdle Clavicle Sternal end (medial) - attaches to the sternal manubrium. * Acromial end (lateral) articulates with the scapula – Conoid Tubercle On the acromial end and anchors a ligament. Landmark to know if a – clavicle is the right or left one. Inferior. * Scapula Acromion connect with the clavicle – Coracoid process tip of the shoulder. Anterior. * – Suprascapular notch at the base of the coracoid process. Passage for nerves – Spine divides the posterior surface into a supraspinous fossa and infraspinous fossa – Infraspinous fossa Supraspinous fossa Glenoid cavity articulates with the head of the humerus. Lateral. * – Arm Humerus Head medial* – Anatomical neck site for the epiphyseal line – Surgical neck common site of fracture – Greater tubercle large and most lateral than the lesser tubercle – Lesser tubercle medial – Intertubercular groove between the tubercles (4 & 5). It is anterior. For the biceps – tendon. * Trochlea articulates with the ulna. Inferior and medial. Anterior. * – Capitulum articulates with the radius. Inferior and lateral. Anterior. * – Coronoid fossa anterior. – Olecranon fossa posterior – Radial fossa receives the head of the radius when the arm is flexed. The flat side is – anterior. Forearm Radius Head articulates with the capitulum of the humerus. . * – Neck Styloid process
2401 Anatomy & Physiology I Exercise 15 The Appendicular Skeleton What you need to Identify the following and bone markings on a complete or disarticulated skeleton. For paired bones, distinguish left from right. Structure in red are optional. Bones of the Pectoral Girdle and Upper Extremity Pectoral (Shoulder) Girdle Clavicle Sternal end (medial) - attaches to the sternal manubrium. * Acromial end (lateral) – articulates with the scapula Conoid Tubercle – On the acromial end and anchors a ligament. Landmark to know if a clavicle is the right or left one. Inferior. * Scapula Acromion – connect with the clavicle Coracoid process – tip of the shoulder. Anterior. * Suprascapular notch – at the base of the coracoid process. Passage for nerves Spine – divides the posterior surface into a supraspinous fossa and infraspinous fossa Infraspinous fossa Supraspinous fossa Glenoid cavity – articulates with the head of the humerus. Lateral. * Arm Humerus Head – medial* Anatomical neck – site for the epiphyseal line Surgical neck – common site of fracture Greater tubercle – large and most lateral than the lesser tubercle Lesser tubercle – medial Intertubercular groove – between the tubercles (4 & 5). It is anterior. For the biceps tendon. * Trochlea – articulates with the ulna. Inferior and medial. Anterior. * Capitulum – articulates with the radius. Inferior and lateral. Anterior. * Coronoid fossa – anterior. Olecranon fossa – posterior Radial fossa – receives the head of the radius when the arm is flexed. The flat side is anterior. Forearm Radius Head – articulates with the capitulum of the humerus. . * Neck Styloid process
Appendicular%20Skeleton.docx