CFU the skeletal system

The _____ gland(s) secrete(s) _____ which increases _____ activity and absorbs calcium into bones. The _____ gland(s) secrete(s) _____ which increases _____ activity and releases calcium into the blood.

A. thyroid; calcitonin; osteoblast; parathyroid; PTH; osteoclast

B. parathyroid; calcitonin; osteoclast; thyroid; PTH; osteoblast

C. parathyroid; PTH; osteoclast; thyroid; calcitonin; osteoblast

D. thyroid; PTH; osteoclast; parathyroid; calcitonin; osteoblast

A

Identify the zygomatic process and the mandible (in that order).

2 and 4

oblique fracture

occurs when the bone is broken at an angle

comminuted fracture

multiple pieces of bone break off at the site of the fracture

spiral fracture

also called a torsion fracture.

transverse fracture

break occurs at a right angle to the bone's long axis.

When doctors drill a hole into the diaphysis of a long bone, as they do during a leg lengthening procedure, identify the correct order of layers of the bone that they would drill through, starting with the external features.

A. hyaline cartilage, periosteum, compact bone, spongy bone, endosteum, red bone marrow

B. yellow bone marrow, endosteum, compact bone, periosteum

C. periosteum, compact bone, endosteum, yellow bone marrow

D. hyaline cartilage, periosteum, compact bone, spongy bone, red bone marrow

C

All of the following are true about Canaliculi except:

A. They allow osteocytes to access oxygen and nutrients.

B. They form a transport system.

C. They radiate from the central canal to lacunae.

D. They are located within the Haversian canal.

D