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The Human Body in Health and Illness- Chapter 8 Exam Study Guide.

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©THEBRIGHT EXAM SOLUTIONS 2024/2025 ALL RIGHTS RESERVED. 1 The Human Body in Health and Illness- Chapter 8 Exam Study Guide. The skeletal system is composed of - Answers- Bones - Joints - Cartilage - Ligaments Functions of the Skeletal System - Answers- Supports body weight - Supports an...

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  • December 13, 2024
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  • Human Body in Health & Disease
  • Human Body in Health & Disease
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©THEBRIGHT EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.


The Human Body in Health and Illness-
Chapter 8 Exam Study Guide.


The skeletal system is composed of - Answers✔- Bones
- Joints
- Cartilage
- Ligaments

Functions of the Skeletal System - Answers✔- Supports body weight
- Supports and protects soft organs
- Works with muscles to enable body to move
- Stores important minerals, including calcium and phosphorus
- Contains bone marrow, which produces blood cells

Hematopoeisis - Answers✔Process of blood cell formation

Long Bones - Answers✔Found in upper and lower extremities

Short Bones - Answers✔- Shaped like cubes
- Found mostly in wrists, ankles

Immovable joint - Answers✔Zero movement (sutures of the skull)

Flat bones - Answers✔- Thin and curved
- Cranium, ribs, and sternum

Irregular bones - Answers✔Vertebrae and certain cranial bones, such as the sphenoid and
ethmoid

Compact bone - Answers✔- Dense, hard tissue composed of osteons
- Shafts of long bones

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, ©THEBRIGHT EXAM SOLUTIONS 2024/2025

ALL RIGHTS RESERVED.
- Outer surfaces of other bones
- tightly packed to hold weight

Spongy (cancellous) bone - Answers✔- Composed of trabecular plates arranged with "Swiss
cheese" holes
- located at the ends of long bones
- located in short, flat, and irregular bones.
- Holes contain red bone marrow

Diaphysis - Answers✔- Long shaft of the bone
- Composed mainly of compact bone
- Considerable strength

Epiphysis - Answers✔- Enlarged ends, where bone articulates with other bone(s)
- Thin layer of compact bone overlying spongy bone

Epiphyseal disc - Answers✔- Band of hyaline cartilage at each end of diaphysis of
long bones
- Site of longitudinal growth (growth plate)

Medullary cavity - Answers✔- Hollow center of diaphysis
- In adults, filled with yellow bone marrow and fat
- in infacny it is filled with red blood marrow for blood cell production.
- lined with tissue called endosteum

Periosteum - Answers✔- Tough, connective tissue membrane
- Protects the bone
- Point of attachment for muscles
- Contains blood vessels that nourish the bone

Articular cartilage - Answers✔- Covers outer surface of epiphysis
- Decreases friction within joints

Ossification of flat bones - Answers✔Replacement of thin connective tissue membrane with
bone


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