AnatomyLesson 1 of 2 in the course Bone Tissue and the Skeletal System

Skeletal Support, Movement, Protection, and Storage

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

Bone, also called osseous tissue, is a hard, dense connective tissue that forms most of the adult skeleton. Cartilage is a semi-rigid connective tissue found in places where flexibility and smooth movement are important, including joints and parts of the ribcage.

Together, bones and cartilage create a scaffold that supports the rest of the body. Like the steel framework of a building, the skeleton helps hold the body’s shape and supports its other tissues. Without this framework, the body would not maintain its shape or support its organs, muscles, and skin effectively.

All flashcards

What is osseous tissue?
Osseous tissue is bone: a hard, dense connective tissue that forms most of the adult skeleton.
How do bones and joints contribute to movement?
Bones provide attachment points for muscles and act as levers. Joints act as fulcrums; when a muscle spanning a joint contracts, it can move a bone.
What are three examples of skeletal protection?
The ribs protect the heart and lungs, the vertebral column protects the spinal cord, and the cranium protects the brain.
What are yellow marrow and red marrow responsible for?
Yellow marrow contains adipose tissue that stores triglycerides for energy. Red marrow is where hematopoiesis, or blood cell production, occurs.
What is hematopoiesis, and where does it occur?
Hematopoiesis is the production of blood cells. It occurs in red marrow and produces red blood cells, white blood cells, and platelets.

Quiz questions

  1. Which tissues form the skeletal system's main framework?Answer: Bones and cartilage.
  2. In the mechanical description of movement, what roles do bones and joints play?Answer: Bones act as levers, and joints act as fulcrums.
  3. Which organs are protected by the ribs?Answer: The heart and lungs.
  4. Which marrow produces blood cells, and what is this process called?Answer: Red marrow produces blood cells through hematopoiesis.
  5. How can minerals stored in bone help support processes such as muscle contraction?Answer: Bone can release stored minerals into the bloodstream to help maintain needed levels.

Based on Anatomy and Physiology 2e by J. Gordon Betts, Kelly A. Young, James A. Wise, Eddie Johnson, Brandon Poe, Dean H. Kruse, Oksana Korol, Jody E. Johnson, Mark Womble, Peter DeSaix (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

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