Skeletal System (chp 7) assigment

The thoracic part of the vertebral column is made of _______ vertebrae

12

The thoracic region of the vertebral column consists of ______ thoracic vertebrae

12

The cervical portion of the vertebral column is made up of ______ individual vertebrae

7

The neck is composed of ______ vertebrae

7 cervical

After bones have formed via intramembranous or endochondral ossification, what happens to the bone?

Bone is continually remodeled by osteoclasts and osteoblasts.

Where is the vertebral column located?

It extends from the skull to the pelvis.

How many bones make up the facial skeleton?

Thirteen immovable bones and one movable bone.

Answer correct What is the function of osteoclasts?

To break down the calcified matrix of bones

Which root word means vinegar cup and is used in terms that describe depressions in bones?

acetabul-

Hematopoiesis is the process of ______.

blood formation

The ________ of a vertebra is the thick drum-shaped anterior portion of the bone

body

The thin, slightly S-shaped bone in the upper thorax which is one of the bones of the pectoral girdle is the

clavicle

The skull is composed of two main parts: eight bones make up the _______ and fourteen bones make up the _________skeleton.

cranium facial

Based on the way they develop, most bones in the body are __________bones

endochondrial

Each end of a long bone has an expanded portion called the?

epiphysis

The femur is an example of a long bone. It has two expanded portions at each end: the proximal and distal ________?

epiphysis

The bones of the lower limb include the phalanges, metatarsals, tarsals, and what?

femur, tibia, and fibula

Incomplete intramembranous ossification in an infant skull results in the presence of soft spots called

fontanels

The radius is located in the __________

forearm

The head of the humerus articulates with the _____________ cavity of the scapula.

glenoid

At what site on the scapula does the humerus articulate?

glenoid cavity

Which is a factor that directly influences bone development, growth, and repair?

hormones

What is a function of the skeletal system?

house blood producing cells

What is a function of the skeletal system?

house blood-producing cells

The glenoid cavity of the scapula articulates with the head of the

humerus

What is the long bone in the upper arm that extends from the scapula to the elbow?

humerus

The extracellular matrix of bone tissue includes collagen as well as abundant inorganic salts which are found in the form of a mineral called

hydroxyapatite

Each hip, or coxal, bone is formed by the fusion of three bones

ilium, ischium, pubis

Bones that develop within sheets of connective tissue are called ___________bones, while bones that develop from masses of hyaline cartilage are called ______________bones.

intramembranous endochondral

The basic cylinder-shaped unit of a compact bone consists of a central canal and several layers of extracellular matrix called ___________ which are clustered around the central canal.

lamellae

The bony matrix of compact bone is organized into concentric layers of extracellular matrix called ______ that encircle central canals.

lamellae

The concentric layers of bone tissue around a central canal are called

lamellae

Cells that deposit and form new bone during osteogenesis are called

osteoblasts

Cells called _____________ are responsible for the break down of the calcified extracellular matrix in bone.

osteoclasts

Bone remodeling occurs continually as ______ reabsorb bone tissue and ______ replace the bone. The total mass of bone remains nearly constant.

osteoclasts osteoblasts

In the anatomical position, the forearm bone on the same side as the thumb is the

radius

Each pectoral girdle consists of a(n) ___________and a(n)____________

scapula, clavicle

What is hydroxyapatite?

small crystals of calcium phosphate salts

The eight bones of the cranium are the frontal bone, the two parietal bones, the occipital bone, the two temporal bones, the ___________ bone, and the ___________bone.

sphenoid ethmoid

The anatomical name for the breastbone is the

sternum

The ribs, together with the thoracic vertebrae, the sternum, and the costal cartilages, form the ____________ ___________

thoracic cage