Chapter 4: Skeletal System

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Essay Question: Describe the process of appositional growth.

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Essay Question: Discuss the process of endochondral bone formation.

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Essay Question: Explain the steps of bone fracture repair.

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Rickets is a condition marked by a softening and bending of bones that occurs in growing children, as a result of __________________ deficiency.

Vitamin D3

The ORGANIC component of the matrix, which makes up around one-third of the mass of bone, is dominated by __________________________.

collagen fibers.

Osseous tissue is classified as which of the following?

connective tissue

The bony compartment that supports the brain is called the.......

cranium

The medullary cavity of a long bone is lined with....

endosteum

The presence of an epiphyseal line indicates....

epiphyseal growth has ended

Narrow sheets of calcified matrix that form concentric rings are referred to as...

lamellae

The bones of the upper arms and thighs are classified as...

long bones

Which of the following curves develop as a child begins to stand and walk?

lumbar

What is a rounded articular process?

Condyle

What is a narrow ridge of bone?

Crest

What is a smooth, nearly flat articular surface?

Facet

Which of the following occurs in intramembranous ossification?

Fibrous connective tissue is converted to bone tissue, which first resembles spongy bone.

A rounded passageway for blood vessels and/or nerves

Foramen

What is a shallow depression called?

Fossa

What is a condition caused by overproduction of growth hormone before puberty?

Gigantism

What is a boney expansion carried on a neck?

Head

What is a canal-like passageway through a bone?

Meatus

What is a painful infection in a bone generally caused by bacteria?

Osteomyelitis

What is slowing of the ossification process due to aging called?

Osteopenia

What is a condition that reduces bone mass causing easy breakage and limiting ability to repair?

Osteoporosis

Projection or bump?

Process

What is a cavity within a bone, filled with air?

Sinus

What is a birth defect caused by failure of vertebral laminae to unite during development causing abnormalities of the brain and spinal cord?

Spina Bifida

What is a pointed process?

Spine

Which of the following accounts for almost two-thirds of the mass of bone tissue?

calcium phosphate

Which of the following primary functions of the skeletal system applies to the role of red bone marrow?

blood cell production

The process of depositing calcium salts into a tissue is called...

calcification

Tarsal bones are classified as __________________ bones.

short

Osteocytes......

maintain normal bone structure by recycling the calcium salts in the bony matrix around themselves.

A primary function of the skeletal system is.....

maintaining the normal concentrations of calcium and phosphate ions in the body fluids

The maxillary bones articulate with all other facial bones except the......

mandible

During the process of _____________, an existing tissue is replaced with bone.

ossification

Immature, active bone cells that produce new bone matrix are termed _____________________.

osteoblasts

Which of the following is found only in compact bone?

osteons

Two hormones that work together to elevate calcium levels in the body are ________________ and __________________.

parathyroid hormone, calcitriol

A compound fracture...

results in bone projecting through the skin

The primary curves of the vertebral column that develop before birth are the.....

thoracic & sacral

Spongy bone is made up of a network of bony rods or plates called __________________.

trabeculae

Which of the following is MOST LIKELY to be damaged during CPR?

xiphoid process


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