Anatomy Week 5 (worksheet so far)

Manubrium

• articulates medially with the clavicle.

• serves as the only attachment of the upper extremity to the axial skeleton.

Clavicle

• stabilizes the shoulder and acts as a brace for the scapula.

6 Major Anatomical Landmarks

1. Spine

2. Acromion Process

3. Coracoid Process

4. Glenoid Cavity

5. Inferior Angle

6. Medial Border

Glenoid Cavity

the head of the humerus articulates with this.

Biceps Brachii

the interbucular groove holds a tendon from this muscle.

Deltoid

the deltoid tuberosity serves as the attachment point for this muscle.

Radius

• the capitulum articulates with the head of this.

• spins around the ulna to produce pronation and supination.

Ulna

the trochlea articulates with this.

Coxal Bone

formed by the fusion of the ilium, ischium, and pubis.

Acetabulum

socket formed by all three pelvic bones where the head of the femur articulates.

Femur

articulates with the patella and contains greater and lesser trochanters.

Tibia

larger and more medial bone of the lower leg; medial malleolus forms inner ankle.

Fibula

the lateral bone of the lower leg that does not articulate with the femur.

Calcaneus & Talus

The two bones that carry most of the body's weight in the foot.

8 Carpal Bones

1. Scaphoid

2. Lunate

3. Triquetrum

4. Pisiform

5. Hamate

6. Capitate

7. Trapezoid

8. Trapezium

(Straight Line To Pinky Here Comes The Thumb)

7 Tarsal Bones

1. Talus

2. Calcaneus

3. Navicular

4. Medial Cuneiform

5. Intermediate Cuneiform

6. Lateral Cuneiform

7. Cuboid

(The Circus Needs More Interesting Little Clowns)

Three Arches of Foot

1. Medial Longitudinal

2. Lateral Longitudinal

3. Tranverse

Sutures of the Skull

Synarthrosis (Immovable) | Fibrous joint.

Intervertebral Discs

Amphiarthrosis (Slightly movable) | Cartilaginous joint.

Pubic Symphysis

Amphiarthrosis (Slightly movable) | Cartilaginous (Symphysis) joint.

Elbow Joint

Diarthrosis - Uniaxial (Freely movable in 1 axis) | Synovial joint.

Knuckle (MCP) Joint

Diarthrosis - Biaxial (Freely movable in 2 axes) | Synovial joint.

Shoulder / Hip Joint

Diarthrosis - Multiaxial (Freely movable in 3 axes) | Synovial joint.

Synovial Joint

key defining structural characteristic is presence of a fluid-filled joint cavity.

Synovial Membrane

• produces synovial fluid.

• lines the joint capsule.

Synovial Fluid

• has the consistency of egg whites.

• provides lubrication to reduce friction between articulating bones.

• provides nourishment to avascular articular cartilage.

Flexion

Bending a joint to decrease the angle between bones.

Abduction

Moving a limb away from the midline of the body.

Dorsiflexion

Pointing the toes upward toward the shin.

Inversion

Turning the sole of the foot inward.

Supination

Rotating the forearm so the palm faces anteriorly/upward.

Six Movements Specific to the Scapula

1. Protraction (Abduction)

2. Retraction (Adduction)

3. Elevation

4. Depression

5. Upward Rotation

6. Downward Rotation (or Anterior/Posterior Tipping)