Bones Flashcards
What type of connective tissue serves as a precursor to bones during development?
Cartilage
True or False: Cartilage is avascular, meaning it does not have blood vessels.
True
What is the primary function of cartilage in the body?
Providing structural support and flexibility
Fill in the blank: Cartilage is composed of ________ and ground substance.
Chondrocytes
What are the three main types of cartilage found in the human body?
Hyaline, fibrocartilage, and elastic cartilage
Which type of cartilage is most abundant in the body and is found in the trachea, ribs, and ends of long bones?
Hyaline cartilage
Fill in the blank: Fibrocartilage is found in ________ such as intervertebral discs and the pubic symphysis.
Joints
True or False: Elastic cartilage is highly flexible and is found in the external ear and epiglottis.
True
What is the process by which cartilage is replaced by bone during development?
Endochondral ossification
True or False: During endochondral ossification, the cartilage model is gradually replaced by bone tissue.
True
What is the primary cell responsible for bone formation during endochondral ossification?
Osteoblasts
Fill in the blank: Osteoblasts secrete ________ to build bone tissue.
Osteoid
True or False: Osteoclasts are responsible for breaking down bone tissue during remodeling.
True
What is the process by which bones grow in width through the addition of new bone tissue?
Appositional growth
True or False: Appositional growth involves the deposition of new bone tissue on the surface of existing bone.
True
Fill in the blank: The growth plate, also known as the ________, is responsible for longitudinal bone growth in children.
Epiphyseal plate
What is the term for the process of bone tissue remodeling in response to mechanical stress or injury?
Bone remodeling
True or False: Bone remodeling involves the removal of old bone tissue by osteoclasts followed by the deposition of new bone tissue by osteoblasts.
True
What are the two main types of bone tissue found in the human body?
Compact bone and spongy bone
Which type of bone tissue is dense and forms the outer layer of bones, providing strength and protection?
Compact bone
Fill in the blank: Spongy bone consists of ________ that are filled with red or yellow bone marrow.
Trabeculae
True or False: Spongy bone is lighter and less dense than compact bone.
True
What is the term for the process of converting cartilage to bone?
Ossification
