Vertebrae and ribs

Question 1

Number of each section of the vertebrae

Answer 1

7 cervical

12 thoracic

5 lumbar

5 sacrum

5 coccyx

Question 2

Vertebrae basics

Answer 2

Question 3

C1

Answer 3

aka atlas

*no body

* anterior tubercle is closest to the superior facets

Question 4

c2

Answer 4

* has dens aka Ondontoid process

* aka axis

*like c1, has no body

Question 5

vertebral artery

Answer 5

The vertebral arteries arise from the subclavian arteries, one on each side of the body, then enter deep to the transverse process of the level of the 6th cervical vertebrae (C6), or occasionally (in 7.5% of cases) at the level of C7. They then proceed superiorly, in the transverse foramen (foramen transversarium) of each cervical vertebra. Once they have passed through the transverse foramen of C1 (also known as the atlas), the vertebral arteries travel across the posterior arch of C1 and through the suboccipital triangle before entering the foramen magnum.

Inside the skull, the two vertebral arteries join up to form the basilar artery at the base of the medulla oblongata. The basilar artery is the main blood supply to the brainstem and connects to the Circle of Willis to potentially supply the rest of the brain if there is compromise to one of the carotids. At each cervical level, the vertebral artery sends branches to the surrounding musculature via anterior spinal arteries.

Question 6

Lumbar vertebrae (what is unique about them)

and by the absence of facets on the sides of the body

Answer 6

they have mamillary process

&

Acessory process- on lamina between mammilary process and costal

* Lack rib facets and transverse
foramina

Question 7

acessory process on lumbar photo

Answer 7

Question 8

Sacrum

Answer 8

Fused bone consisting of 5
vertebrae
Sacral promontory - vert like
Sacral foramina (pelvic & dorsal)
Auricular surface- part that connects to illuim

Question 9

ribs

Answer 9

true aka direct

2 false are floating

12 on each side, 2 are floatin

first 6 are true

last 2 are false floating

r

Question 10

ribs 1 & 2

Answer 10

can decipher

1 anterior scalene & middle

2 has posterior scalene

*1 rib connects to manubrium 2 connect to body of sternum and bottom of manubrium

Question 11

sternum

Answer 11

Manubrium- top
Body (or gladiolus)
Jugular (or suprasternal) notch- very top
Xiphoid process- bottom

Question 12

ribs 2 - in detail

Answer 12

Head
Neck
Tubercle
Body (or shaft)
Costal groove- inferior
Costal cartilages- between rib and sternum