Anatomy of A long Bone Flashcards
What is the primary function of long bones?
To support the weight of the body and facilitate movement.
True or False: Long bones are longer than they are wide.
True
What are the three main parts of a long bone?
Diaphysis, epiphysis, and metaphysis.
Fill in the blank: The shaft of a long bone is known as the _______.
Diaphysis
What are the ends of a long bone called?
Epiphyses
Which part of the long bone contains the growth plate?
Metaphysis
What type of bone tissue primarily makes up the diaphysis?
Cortical bone (compact bone)
True or False: The epiphysis is primarily composed of spongy bone.
True
What is the function of the medullary cavity in long bones?
To store bone marrow and reduce the weight of the bone.
What type of marrow is found in the medullary cavity of long bones in adults?
Yellow marrow
What is the periosteum?
A dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.
Fill in the blank: The outer layer of the periosteum is made up of _______ tissue.
Dense irregular connective
What type of cells are responsible for bone formation?
Osteoblasts
True or False: Osteoclasts are involved in the resorption of bone tissue.
True
What is the role of osteocytes in bone tissue?
To maintain bone matrix and communicate with other bone cells.
What is the significance of the nutrient artery in long bones?
It supplies blood to the bone and is crucial for bone health.
What is the term for the growth plate in children?
Epiphyseal plate
Fill in the blank: The growth of long bones occurs at the _______.
Epiphyseal plate
What is the composition of bone tissue?
Bone tissue is composed of organic components (collagen) and inorganic components (hydroxyapatite crystals).
What is the function of articular cartilage found at the ends of long bones?
To reduce friction and absorb shock at the joints.
True or False: Long bones play a role in blood cell production.
True
What is the term for the process of bone formation?
Ossification
What is the structure that connects muscle to bone?
Tendon
What is the structure that connects bone to bone?
Ligament
