Skeletal System: Vocabulary and Appendicular Skeleton

Language of the bones 1.Process- projection – Example: mastoid process and styloid process 2.Articulation- joint – Ex: Temporalmandibular joint (TMJ) – Fossa- depression of a bone – Ex: Anterior Cranial Fossa 4.Sinus- cavity in the bone – Ex: Sphenoid and ethmoid sinuses

Language of the bones Continued… 5. Forman- hole in the bone – Ex: Forman magnum 6. Meatus- tubular structure in a bone – Ex: External Auditory Meatus (Ear hole) 7. Condyles- large smooth curved surfaces forms joint with another bone --Ex: Medial epicondyl 8.Tubercles- Warty outgrowth allows tendons to attach – Ex: greater tubercle

Identify the terms we just learned below 1-7 Humerus Cross section of the skull Lateral View

2 girdles A girdle is a collection of bones that attach to the axial skeleton 1. Upper Extremity or Pectoral Girdle: consists of the clavicle and scapula – Connects at the sternoclavicular joint (clavicle and menubrium) 2. Lower Extremity or Pelvic Girdle: consists of illium (hip), ischium (butt), and the pubic bone – Joins to make the acetabulum

Pectoral Girdle Attaches to the upper extremities to the axial skeleton Humerus Radius Ulna Carpals Metacarpals Phalanges

Pelvic Girdle Attaches the lower extremities to the axial skeleton

Pelvic Girdle Lower extremities include: Femur Patella Tibia Fibula Tarsals Metatarsals Phalanges