functions of human skeleton

Question 1

What are “floating ribs”?

Answer 1

Ribs 11-12 that only attach to the vertebral column.

Question 2

What is the function of the cartilage in the ribs?

Answer 2

It provides strength to the chest cage and helps prevent expansion.

Question 3

What are “false ribs”?

Answer 3

Ribs 8-10 that attach to the sternum indirectly via cartilage.

Question 4

How do all 12 pairs of ribs articulate?

Answer 4

They articulate with the 12 thoracic vertebrae posteriorly.

Question 5

what is one main function of the skeletal system related to soft tissues

Answer 5

(structural support) for soft tissues including muscles and internal organs

Question 6

how does the skeletal system protect delicate body parts

Answer 6

(protection) forms a protective cage for more delicate body parts of the body

Question 7

what types of blood cells are produced in the (growth centre of bones)?

Answer 7

red blood cells and platelets

Question 8

what role does the skeletal system play in mineral regulation?

Answer 8

acts as a (reservoir for minerals) helping regulate calcium and phosphorus levels in the body

Question 9

how does muscles facilitate (movement) in relation to bones?

Answer 9

muscles attach to bones via tendons, muscles contract bones to move

Question 10

name the 5 main functions

Answer 10

structural support, protective, reservoir for minerals, growth centre of bones, and movement.

Question 11

how many bones in axial skeleton?

Answer 11

80 bones

Question 12

components of axial skeleton

Answer 12

1 hyoid, 22 skull, 25 ribs and sternum, 26 vertebral, 6 auditory

Question 13

how many bones in the appendicular skeleton?

Answer 13

126 bones

Question 14

what are the main components of appendicular skeleton?

Answer 14

pelvic girdle(hip), pectoral girdle(chest), upper and lower limbs

Question 15

skull is divided into what 2 parts?

Answer 15

calvaria(top), face(front)

Question 16

bones that make up the calvaria

Answer 16

frontal bone, occipital bone, temporal bone, parietal bone.(temporal overlies major blood vessels

Question 17

what face bones are often fractured?

Answer 17

lacrimal bone, zygomatic bone, nasal bone, maxilla and mandible

Question 18

what does the axial skeleton consist of

Answer 18

skull,sternum, ribs and vertebral column

Question 19

how many pairs of ribs in the human body?

Answer 19

12 paris

Question 20

what are the to main components making up the ribs?

Answer 20

bone and cartilage

Question 21

how do all 12 pairs articulate

Answer 21

they articulate(join) with the 12 thoracic posteriorly

Question 22

what are true ribs?

Answer 22

ribs 1-7 that directly connect to sternum

Question 23

what are false ribs?

Answer 23

ribs 8-10 which articulate indirectly to sternum via cartilage

Question 24

what are floating ribs?

Answer 24

ribs 11-12 which only attach via vertebral column

Question 25

describe sternum?

Answer 25

mid-line breast bone, clavicles and 7 true ribs join with the sternum

Question 26

what are the 3 regions of vertebrae

Answer 26

Cervical vertebrae, thoracic vertebrae, and lumbar vertebrae

Question 27

how many vertebra in cervical?

Answer 27

cervical vertebrae has 7 (the neck)

Question 28

how many vertebrae in thoracic vertebrae

Answer 28

12 vertebrae and makes middle back(of the chest)

Question 29

how many vertebrae in lumbar region

Answer 29

5 vertebra in lumbar(lower back)

Question 30

what is the sacrum?

Answer 30

the midline region of buttocks in vertebral column

Question 31

coccyx?

Answer 31

4/5 fused vertebrae of tailbone

Question 32

4 function of the spine?

Answer 32

-provide strong & flexible support for body & ability to keep body arect
-POA for muscles of back
-protect spinal cord & nerves
-absorb shock through discs without causing damage to other vertebrae

Question 33

what is the sternoclavicular?

Answer 33

only POA between axial and pectoral

Question 34

what is the pelvic girdle made of? & what does it do?

Answer 34

-formed by a pair of os coxae(hip bones)
-supports the abdominal & bladder contents

Question 35

pectoral girdle consists of what? what does it do

Answer 35

scapula(shoulder blade) & clavicle(collarbone)
- allows upper limb great mobility

Question 36

upper limb?

Answer 36

humerus & radius and ulna

Question 37

lower limb?

Answer 37

femur, patella, tibia and fibula, & medial and lateral malleolus, feet bones

Question 38

atlas and axis

Answer 38

atlas is the 1st cervical vertebrae
axis is the 2nd cervical vertebrae