Anatomy and Physiology: Osteology

Introduction to the Skeletal System (00:00 - 03:15)

• Discussion of the adult human skeleton consisting of 206 bones.

• Distinction between the axial skeleton (central axis) and the appendicular skeleton (limbs and girdles).

The Skull and Cranial Markings (03:15 - 08:30)

• Breakdown of the 8 cranial bones and 14 facial bones.

• Identification of key sutures: coronal, sagittal, lambdoid, and squamous.

• Explanation of temporal bone processes (mastoid, styloid, and zygomatic) and major skull openings (foramen magnum, carotid canal, and jugular foramen).

The Vertebral Column and Thoracic Cage (08:30 - 15:00)

• Differentiation between cervical (7), thoracic (12), and lumbar (5) vertebrae.

• Special focus on C1 (Atlas) and C2 (Axis) with its dens.

• Overview of the thoracic cage: parts of the sternum (manubrium, body, xiphoid) and the classification of ribs (true, false, and floating).

The Pectoral Girdle and Upper Limbs (15:00 - 22:15)

• Anatomy of the shoulder: clavicle and scapula, including the glenoid cavity and acromion.

• Bones of the arm: humerus (tubercles, epicondyles), radius, and ulna.

• Identification of the eight carpal bones and the structure of the hand.

The Pelvic Girdle and Lower Limbs (22:15 - 28:45)

• Composition of the hip bone: ilium, ischium, and pubis.

• Key landmarks: the acetabulum socket and the obturator foramen.

• Anatomy of the leg: femur (trochanters), tibia, and fibula (malleoli).

• Overview of the seven tarsal bones, including the talus and calcaneus.

Classification of Bone Markings (28:45 - 32:00)

• General vocabulary for bone landmarks: projections (condyles, rami) and depressions/openings (fossae, meatuses, fissures).

• Strategies for using anatomical terminology to aid in memorization.