Exam 2 Flashcards
What are the five bone classifications?
Flat
Long
Short
Irregular
Sesamoid
Flat Bones
Protect Soft Organs
Curved, but wide and thin
Long Bones
Bones that are longer than wide
Short Bones
Bones that are equal in length and width
Irregular Bones
Bones with elaborate shapes that do not fit into other categories
Sesamoid Bones
Bones that are embedded on tendons
What are the six functions of the bone and skeletal system
Support
Protection
Assistance in Movement
Mineral Homeostasis
Blood Cell Production
Triglyceride Storage
Bone’s Support Function
The structural framework of the body
Supports soft tissues and skeletal muscle
Bone’s Protection Function
Protects important internal organs
Ex: The cranium protects the brain, and Vertebrae protect the spinal cord
How do bones assist in movement function?
Skeletal muscles attach by tendons to bone.
Skeletal muscle contraction pulls on the stable platform provided by bone, producing movement (ligaments bind bone to bone)
What is mineral homeostasis in terms of bones?
Bones stores several critical minerals
ESPECIALLY Calcium (99% of body’s content) and phosphorus
What is bone’s part in blood cell production?
Red bone marrow produces (Hemopoiesis) most of the red and white blood cells and platelets
Hemopoiesis
The production of blood cells and platelets occurs in the bone marrow.
How do bones store triglyceride?
Yellow bone marrow is triglycerides stored in adipose cells
Serves as an energy reserve
