Axial skeleton 1

What is the vertebral column formula for dogs?

C7, T13, L7, S3 (Cd 20-23)

What structures does a typical vertebra have?

body & arch, both enclose a vertebral foramen

What structures make up the arch of a typical vertebra?

2 lamina (roof), 2 pedicle (foot), 2 transverse process, spinous process, cranial & caudal articulation processes

What structures make up the body of a typical vertebra?

dorsal surface, ventral median crest, concave caudal surface, convex cranial surface

What bones make up cervical vertebra (C7)?

C1: Atlas, C2: Axis, 3-6 cervical vertebras (C3-C6), 7th cervical vertebra (C7)

Name the bone, type of bone, and aspects of the bone.

Atlas (C1), cervical vertebra (C7)

Name the bone, type of bone, and aspects of the bone.

Axis (C2), cervical vertebra (C7)

Name the of bone, location, and aspects

3-6 cervical vertebra, cervical vertebra (C3-C6)

Name the of bone, location, and aspects

Cervical 7 (C7), very last vertebra

Name the of bone, location, and aspects

Thoracic vertebra, thoracic 13

Name the bone, location, and aspects

Ribs (13 pairs; 26 total), arranged in pairs

how many ribs do dogs & cats have?

13 pairs, 26 total

1-9 = sternal/“true” ribs; articulate directly with sternum

10-13 = asternal/“false” ribs; don’t articulate directly with sternum (articulation with cartilage of ribs 9-12)

13 = floating ribs; ventral end don’t joint with anything