The endocrine system secretes chemical messengers directly into the blood stream. 

The extracellular matrix of osseous tissue is composed of which of the following substances?   I. Collagen       II. Osteocytes        III. Chondrocytes        IV. Hydroxyapatite minerals 

Young children have only red bone marrow.  

Identify the correct order of events for healing a bone fracture.  I. bone remodeling      II. ossification      III. callus      IV. hematoma formation 

Why is bone loss more prevalent in older women than in older men?  

The pituitary gland consists of two regions. Which region is a true endocrine structure? 

An individual with Osteogenesis Imperfecta, also known as brittle bone disease, very easily breaks their bones because of an imbalance in their matrix. What is the matrix imbalance?   

Interstitial growth stops as we reach early adulthood because at that time _______ 

A bone sample has lamellae that is NOT arranged into osteons. What does this tell you about the bone? 

The skeletal system is responsible for many important functions.  One function that it is NOT responsible for is ___________ .