Podcast
Questions and Answers
Which function of the skeletal system is directly involved in the formation of blood cells?
Which function of the skeletal system is directly involved in the formation of blood cells?
- Hematopoiesis (correct)
- Protection of organs
- Providing structure
- Mineral storage
How would bones be classified that are roughly cube-shaped?
How would bones be classified that are roughly cube-shaped?
- Long
- Irregular
- Short (correct)
- Flat
Which of the following is the primary component of the diaphysis of a long bone?
Which of the following is the primary component of the diaphysis of a long bone?
- Fibrocartilage
- Spongy bone
- Compact osseous tissue (correct)
- Hyaline cartilage
What is the main function of osteoclasts?
What is the main function of osteoclasts?
Which type of cartilage is typically found in the hips, knees and spine?
Which type of cartilage is typically found in the hips, knees and spine?
What is the role of the periosteum?
What is the role of the periosteum?
In which section of long bone is the epiphyseal line located?
In which section of long bone is the epiphyseal line located?
Which of the following is a bone cell responsible for repairing bone tissue?
Which of the following is a bone cell responsible for repairing bone tissue?
Which of these is not a function of the skeletal system?
Which of these is not a function of the skeletal system?
Which of the following structures is part of the axial skeleton?
Which of the following structures is part of the axial skeleton?
Which statement best describes the role of osteocytes?
Which statement best describes the role of osteocytes?
Where does hematopoiesis primarily occur in the skeletal system?
Where does hematopoiesis primarily occur in the skeletal system?
Which of the following is a bone located in the appendicular skeleton?
Which of the following is a bone located in the appendicular skeleton?
What is the medullary cavity primarily used for?
What is the medullary cavity primarily used for?
Which of the following is a characteristic of the axial skeleton?
Which of the following is a characteristic of the axial skeleton?
Where does the hyaline cover in bone?
Where does the hyaline cover in bone?
With which structure does the epiphysis connect?
With which structure does the epiphysis connect?
What is the total number of bones found in the appendicular skeleton?
What is the total number of bones found in the appendicular skeleton?
What do osteocytes create?
What do osteocytes create?
Where is the medullary cavity located in bone?
Where is the medullary cavity located in bone?
Flashcards
Joint
Joint
Where two or more bones meet, allowing movement.
Cartilage
Cartilage
Connective tissue found in the skeletal system; types include fibrocartilage, hyaline, and elastic.
Axial Skeleton
Axial Skeleton
Includes the skull, vertebral column, and thoracic cage.
Appendicular Skeleton
Appendicular Skeleton
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Hematopoiesis
Hematopoiesis
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Short Bones
Short Bones
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Long Bones
Long Bones
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Flat Bones
Flat Bones
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Irregular Bones
Irregular Bones
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Diaphysis
Diaphysis
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Epiphysis
Epiphysis
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Medullary Cavity
Medullary Cavity
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Epiphyseal Line
Epiphyseal Line
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Compact Bone
Compact Bone
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Periosteum
Periosteum
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Hyaline Cartilage
Hyaline Cartilage
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Osteon
Osteon
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Osteocyte
Osteocyte
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Osteoclasts
Osteoclasts
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Osteoblasts
Osteoblasts
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Study Notes
- The skeletal system is composed of connective tissue.
Components of the Skeletal System:
- Bones
- Joints: where two or more bones meet and movement occurs
- Cartilage: fibrocartilage, hyaline, and elastic
Divisions of the Skeletal System
- Axial Skeleton: skull, vertebral column (spine vertebrae), and thoracic cage (rib cage); 80 bones
- Appendicular Skeleton: limbs/appendages, pelvis, and shoulder girdle; 126 bones
Functions of the Skeletal System
- Hematopoiesis: protection of red blood cells
- Movement
- Protection of softer organs
- Structure: gives structure to the human body
- Storage of minerals
Bone Types
- Spongy and compact bone create bones.
- Bones are classified by their shape:
- Short: carpals and tarsals
- Long: femur and humerus
- Flat: rib cage bones and cranium
- Irregular: hip and scapula (shoulder blades)
Anatomy of a Long Bone
- Diaphysis: the shaft of the bone
- Epiphysis: the ends of the bone where they connect to joints
- Medullary Cavity: located in the middle of the bone; red (produces blood) and yellow (holds fat and minerals)
- Epiphyseal Line: where the growth plate is/ends; separates the hyaline from the diaphysis
- Diaphysis: made up mostly/completely of compact osseous tissue (bone)
- Periosteum: a thin layer of epithelial tissue that lines the diaphysis
Cartilage
- Hyaline: the most popular cartilage, it is everywhere but in the hips, knees, and spine
- Fibrocartilage is in the hips, knees, and spine
Bone Cells
- Osteon: a single unit of bone
- Osteocyte: a mature bone cell; creates osteon
- Osteoclast: a bone cell that destroys/breaks down osseous tissue
- Osteoblast: a bone cell that repairs bone tissue
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