Exam 6: The Skeletal System: Bone Tissue

Osteoporosis is most common in elderly women because of the lack of __,which would inhibit ___.

What are the extracellular fluid filled extensions of the lacunae called?

What hormone(s)is/are released from the control center when the control center receives cAMP input;also important in increasing blood calcium serum levels.Choose the best answer.

Which statement describes blood calcium levels accurately?

Briefly describe the processes by which bone increases in length and diameter.

Briefly describe the steps in bone resorption.

Which of the labeled structures in the diagram are composed of trabeculae,which are bony structures that lack osteons?

Mary,an avid runner,was complaining that her lower leg hurt.After going to the doctor,they did not see anything on x-rays of her tibia or fibula.The doctor ordered a bone scan and saw tiny fissures throughout her tibia without any other tissue damage.What is Mary's likely diagnosis?

Which two minerals are needed in large quantities when bones are growing?

The ______is composed of hyaline cartilage and allows the diaphysis to grow in length.

Briefly describe the major differences between compact and spongy bone.

Which region of a long bone articulates with other bones?

An archeologist and an anthropologist are studying two skeletons from an ancient tomb that had apparently been looted in an earlier time.Both skeletons are females and both are approximately the same height.However,the anthropologist is absolutely certain that one skeleton is the remains of someone from the privileged class while the other skeleton is the remains of a servant or slave. How could the anthropologist be so sure of the economic status of the individuals based solely on their skeletal remains?

During endochondral ossification in a fetus,bones initially develop as a cartilage model that was formed from

Which hormone is the MOST important for Ca²⁺ regulation?

PTH will increase _______activity while Calcitonin will decrease __________activity.

Which of the labeled structures in the diagram secure dense irregular and osteogenic layers to the bone matrix?

In endochondral ossification,what is the original source of osteoblasts?

Briefly describe what is happening in each of the numbered stages of intramembranous ossification as observed in a child's skull shown in the diagram below.