Bony Thorax & Vertebral Column 3.3.3

Question 1

What is the atlas bone?

Answer 1

Most superior (uppermost) bone of the the vertebral column

-supports the skull
-allow forwards/backward movement

Question 2

What is the axis bone?

Answer 2

Second most superior bone of vertebral column

-supports skull, allows for forward/backward movement

Question 3

What is cervical vertebrae?

Answer 3

7 vertebral bones in neck
-includes atlas & axis
-has slight curve which forms after birth when infant holds up head

Question 4

What is coccyx?

Answer 4

Tail bone

-formed from the fusion of four vertebral bones into a single bone
-triangle shaped, found below sacrum

Question 5

What are false ribs?

Answer 5

5 pairs of ribs that lie below the true ribs
-connect to the vertebrae
-posterior (behind)

Question 6

What are floating ribs?

Answer 6

Two pairs of false ribs are located lowest in the ribcage
(all ribs connect to the vertebrae)

Question 7

What is hyboid?

Answer 7

U-shaped bone located in the front of neck
-not connected to any nearby bones
-assist with tongue movements & swallowing
-known as the tongue bone

Question 8

What are intervertebral discs?

Answer 8

structures made of cartilage that act to support & cushion vertebrae
-enable movement between vertebrae

Question 9

What is lumbar vertebrae?

Answer 9

5 vertebral bones located in the lower back of the spine

Question 10

What is thoracic vertebrae?

Answer 10

12 vertebral bones located in the thoracic cavity
-contains a slight curve present at birth

Question 11

What is vertebrae?

Answer 11

Bones that make up the vertebral column (spine)

Question 12

What is vertebral column

Answer 12

Anatomical term for the spine/backbone

-extends from the skull to the pelvis

Question 13

What is the sacrum?

Answer 13

Shield-shaped bone located in the pelvic region of the vertebral column

-hip bone connects here
-formed from the fusion of the 5 vertebral bones

Question 14

Vertebral body

Answer 14

The main weight-bearing portion of vertebrae
-anterior part of vertebrae (in front of)
-becomes larger from the cervical to the lumbar region

Question 15

What is vertebral foramen?

Answer 15

hole in the bone through which the spinal cord travels

Question 16

What is the bony thorax?

Answer 16

The rib cage

-protects heart, lungs & other organs of the thoracic cavity

Question 17

What is the sternum?

Answer 17

Breastbone
-center of the chest (front of thoracic cavity)

Question 18

What are true ribs?

Answer 18

the upper 7 pairs of ribs

-connect to the vertebrae in the back of the body
-connect to the sternum