skeletal unit

Question 1

What does the skeletal system consist of?

Answer 1

bones, cartilage, tendons, ligaments, joints and teeth but teeth are not considered bones

Question 2

what is cartilage?

Answer 2

is strong, flexible and semi rigid supporting system it can withstand press forces, and yet it can bend

Question 3

Where is Cartilage found?

Answer 3

at the end of bones by the growth plate

Question 4

What are tendons?

Answer 4

tough, white, cord like tissue that attaches muscle to bone 

Question 5

What are ligaments?

Answer 5

fibrous connective tissue that connects bone to bone

Question 6

What are joints?

Answer 6

Area where agent bones, meet, or articulate

Question 7

What are the two distinctive parts of the skeletal system?

Answer 7

appendicular, skeletal and axial skeletal 

Question 8

what is an appendicular skeleton?

Answer 8

portion of a skeletal consisting of the pectoral girdle, pelvic girdle in the bones of the arms and legs

Question 9

what’s the axial skeleton?

Answer 9

portion of the skeleton consisting of the skull, vertebral column, and rib cage 

Question 10

what are the two types of skeletons?

Answer 10

Exoskeleton and endoskeleton

Question 11

What’s an endoskeleton?

Answer 11

vertebrates endoskeleton allow for free movement and grow along with an organism 

Question 12

What’s an exoskeleton?

Answer 12

invertebrates in animals that have an external skeleton such as the crab, the skeleton is called an exoskeleton restrict the movement of an orgasm and must be shed periodically in order for the organism to grow 

Question 13

What are the three main functions of the skeletal system?

Answer 13

mechanical, protective, and metabolic 

Question 14

What does mechanical do for us?

Answer 14

support which it provides a framework for the attachment of muscles and other tissues and movement bones, enable body movements by acting as levers and points of attachment for muscles

Question 15

What are the things in metabolic?

Answer 15

Mineral storage, blood cell production, and energy reserve

Question 16

What type of materials do the bone produce?

Answer 16

Calcium and phosphorus

Question 17

Where does blood cell production take place?

Answer 17

Red marrow

Question 18

What serves as energy reserve

Answer 18

lipids, fat stored in adipose cells of the yellow marrow serve as energy reserves

Question 19

what are the type of bone formations? 

Answer 19

intramembranous bone formation and endochondral bone formation 

Question 20

where does the intramembraous bone formation take place?

Answer 20

Skull bones

Question 21

what happens in endochondral bone formation?

Answer 21

The body creates a template in cartilage is replaced by bone like in the epithelial plates or growth plate sites where the creation of new bone allows the long bones to lengthen as the animal grows 

Question 22

What are osteoblasts?

Answer 22

Cells that form bones

Question 23

What are osteoclasts

Answer 23

opposite of osteoplast instead of foreign bone, they remove bones from where it’s not needed so they are remodeled constantly 

Question 24

What are the parts of the long bone?

Answer 24

cartilage, epithelial plate, is bone, endostem, compact bone, medullary cavity, artery and veins, yellow marrow, periosteum, proximal and distal epiphysis and diaphysis

Question 25

what is cartilage in a long bone

Answer 25

A dense opaque connective tissue that absorbs shock reduces friction and protects the epithelial end of bones 

Question 26

what is an epiphyseal plate? 

Answer 26

growth plate of a long bone areas where long bone increases in length when animal reaches full length, the growth plates, completely ossify and bones, cease growth 

Question 27

what is spongy bone?

Answer 27

mesh work of spongy tissue of mature, adult bone typically found at the core of vertebral bones in the spine and the ends of the long vines and it contains red bone marrow 

Question 28

what’s an endosteum

Answer 28

The fibrous memory, that lines the hollow interiors of bones 

Question 29

What’s a compact bone?

Answer 29

heavily dense bone made up of tiny tightly, compact senators of bones that make up the shafts of the long bones and the outer surfaces of all bones 

Question 30

What’s the medullary cavity?

Answer 30

A cavity that contains bone marrow in the diaphysis of a long bone 

Question 31

What’s an artery?

Answer 31

Vessels that carry oxidated blood and nourish from the heart to tissues of the body

Question 32

What are veins?

Answer 32

vessels that carry oxygen depleted blood to the heart

Question 33

what’s yellow marrow? 

Answer 33

found in hollow interior of the diaphyseal portion or shaft of long bones it’s main function is to store adipocyted (fat cells)-that serve as a source of energy 

Question 34

what’s periosteum

Answer 34

dense fibrous membrane covering the surfaces of bones. The outer layer is composed mostly of collagen and contains nerve fibers that cause pain when the tissue is damaged. 

Question 35

What are the types of bones?

Answer 35

Long short, flat, irregular, and sesamoid 

Question 36

how many types of bones are there?

Answer 36

5

Question 37

what are the types of synovial joints

Answer 37

Hinge, pivot saddle, and ball and socket

Question 38

What’s hinge? and an example

Answer 38

The hen droid is like a door opening, closing in One Direction along one plate. Examples include your elbow joint in your knee joint. 

Question 39

What’s pivot and example?

Answer 39

also called the rotatory joint it is characterized by one bone that can swivel in a ring formed from a second bone examples are joint between your all and radius bones that rotate your forearm and the joint between the first and second vertebrae in your neck 

Question 40

what’s saddle and an example?

Answer 40

although the saddle joint does not allow rotation, it does help enable movement back-and-forth side to side an example is a joint at the base of your thumb 

Question 41

What’s ball and socket and an example?

Answer 41

permitting movement in all directions, the ball and socket joint features the rounded end of one bone sitting in a cup of the other bone examples include your shoulder joint in your hip joint 

Question 42

what’s tuberosity

Answer 42

large, rounded projection may be rounded

Question 43

what’s crest

Answer 43

Narrow ridge of bones, usually prominent

Question 44

what’s trochanter

Answer 44

very large, blunt, irregularly shaped process

Question 45

what’s line

Answer 45

narrow ridge of bone less prominent then the crest

Question 46

tubercle

Answer 46

small rounded projection or process