A&p I - Lecture - Week Of 11/8

Front 1

- Babies are born with

Back 1

~350 bones. That gradually shrinks down to 206.

Front 2

- Cartilage is considered part of

Back 2

the skeleton

Front 3

- Three types of cartilage in the skeletal system:

Back 3

Hyaline, Elastic, and Fibro.

Front 4

Functions of the Skeleton

Back 4

1.Support. // 2.Movement // 3.Protection // 4.Hematopoiesis – blood cell production // 5.Mineral (particularly calcium phosphates) storage.

Front 5

Hyaline –

Back 5

Found in four main areas: Articular cartilage, coastal cartilage, nasal cartilage, and respiratory cartilage (tracheal cartilage, bronchiole cartilage, and larnnyx)

Front 6

Elastic –

Back 6

Most flexible cartilage, has the biggest percentage of elastic fibers.Is found in the ear and the epiglottis

Front 7

Fibro cartilage – .

Back 7

Very tough and strong, hard to tear. Dense on the outside, squishy on the inside. Found in: intervertebral discs, menisci, and pubic sympysis.

Front 8

Sinus –

Back 8

Space within our bone that lightens the skull and resonates our voice. Lines with mucous membranes to fight respiratory infection

Front 9

Cervical –

Back 9

Curvature that develops when the child can hold its head up

Front 10

Thoracic –

Back 10

Curvature that develops when the child can sit up. Over-curvature is referred to as “lordosis”

Front 11

Lumber –

Back 11

Curvature that develops when a child can walk. Over-curvature is referred to as “kyphosis”

Front 12

Intervertebral discs - .

Back 12

Made of collagen fibers (annulus fibrousus) on the outside, Nucleus pulposus on the inside.

Front 13

Nucleus pulposus – .

Back 13

A glycoprotein that makes of the inside of intervertebral discs. Draws water to it through osmotic pressure.
osten that the ostecytes

Front 14

Proximal epiphysis –

Back 14

The end of the bone closest to the trunk of the body.

Front 15

Distal epiphysis –

Back 15

The end of the bone further away from the trunk of the body

Front 16

Diaphysis -

Back 16

The median area of the bone.

Front 17

Epiphysis plate –

Back 17

Hyaline cartilage cells that divide to add length to the bone, Gradually ossifies.
Endosteum – Lines the inside of the bone. Contains osteoprogenitor cells
Peristeum – Lines the outside of the bone and is continuous with the joint capsule. Contains osteoprogenitor cells
Osteoprogenitor – Makes osteoblasts and osteoclasts
Osteoblasts – Secrete bone matrix and moves like and amoeba. Works to remodel the bone.
Osteoclasts – Eats up bone
Concentric lamella – Bone matrix
Osteocytes – Bone cells that were osteoblasts before they stopped making
Canaliculi - Tunnels in the

Front 18

Endosteum –

Back 18

Lines the inside of the bone. Contains osteoprogenitor cells

Front 19

Peristeum –

Back 19

Lines the outside of the bone and is continuous with the joint capsule. Contains osteoprogenitor cells

Front 20

Osteoprogenitor –

Back 20

Makes osteoblasts and osteoclasts

Front 21

Osteoblasts –

Back 21

Secrete bone matrix and moves like and amoeba. Works to remodel the bone.

Front 22

Osteoclasts –

Back 22

Eats up bone

Front 23

Concentric lamella –

Back 23

Bone matrix

Front 24

Osteocytes –

Back 24

Bone cells that were osteoblasts before they stopped making

Front 25

Canaliculi -

Back 25

Tunnels in the osten that the ostecytes.