Skeletal System Basics
What protein is the primary component of bones?
Collagen
Which type of bones are longer than they are wide and are moved through muscle contraction, such as the femur?
Long bones.
What are the two main types of tissue found in bones?
Compact bone tissue and spongy bone tissue.
Until early adulthood, what type of growth occurs in bones, often involving different zones like the growth plate?
Longitudinal growth.
What is the term for a collection of blood that forms at the site of a bone fracture?
Fracture hematoma.
Name three types of connective tissues mentioned in the video that are part of the human skeletal system?
Ligaments, tendons, and cartilage.
What is the name for bones that are cube-shaped, with similar length and width?
Short bones.
What is stored in yellow bone marrow, found within the cavity of long bones?
Fat, for long-term energy storage.
What term describes the process of removing damaged or old bone and replacing it with new bone?
Bone remodeling.
Name a genetic disorder that impacts collagen production, resulting in brittle bones.
Osteogenesis imperfecta.
What is the term for the hard outer layer of bone tissue?
Compact bone tissue.
What term describes roundish bones that handle pressure well, such as the patella?
Sesamoid bones.
In which type of bone marrow can blood cells, including red and white blood cells, be produced?
Red bone marrow.
Approximately what percentage of the skeleton is remodeled each year?
5-10%.
In severe trauma to long bones, what substance can be released into the blood and potentially lead to fat embolism syndrome?
Fat from yellow marrow.
What is a function of the skeletal system besides providing support?
It stores important minerals, produces red and white blood cells, and enables movement.
Which bones are often curved and thin, found in areas like the cranial bones and scapulae?
Flat bones.
What cells are responsible for making new bone tissue?
Osteoblasts.
Which cells are responsible for breaking down bone structure during remodeling?
Osteoclasts.
What cells help remove damaged parts of a broken bone during the healing process?
Osteoclasts.
How does the skeletal system contribute to the process of making red and white blood cells?
It occurs in the bone marrow within bones.
What type of bones do not have a specific shape description and are characterized as abnormal?
Irregular bones.
Which cells maintain bone structure and make up the majority of bone cells?
Osteocytes.
What mineral primarily stored in bones is regulated by hormones and has multiple functions, including muscle contraction?
Calcium.
What type of bone condition literally means “porous bones”