Introduction to the Skeleton
How many bones are in the adult human body?
206
Bones are made of a very hard mineral called ....
Calcium
Your bones is known as a storage tank for ...
Calcium
What are the bones found within the Axial Skeleton?
Central Axis of the Body; Cranium, Ribs, Sternum and Vertebrae
What bones are found within the Appendicular Skeleton?
consists of the shoulder and pelvis girdle, legs and arms
Bones are classified by ...
their shape
What is the function of Osteocytes?
known as mature bone cells and make up most of bone structure
Bone is formed as Cartilage ....
Calcifies
The Vertebrae Column has 5 sections and consist of how many vertebrae?
33 at birth; but 5 sacral vertebrae and 4 vertebrate of the coccyx fuse in adolescence
Name 4 specific bones of the Appendicular Skeleton
Clavicle, Scapula, Humerus, Radius, Ulna, Carpals, Metacarpals, Phalanges, Pelvic Girdle, Femur, Patella, Tibia, Fibula, Tarsals, Metatarsals
Long Bones have two basic regions ...
1. Diaphysis: shaft; long part of the bone
2. Epiphyses: ends of bone
What is the function of Osteoclasts?
break down bone
What gland releases which hormone that deposits extra calcium from blood into bones?
Thyroid Gland; Calcitonin
Vertebrae are separated by intervertebral discs that provide ....
How do ligaments and tendons differ?
Ligaments attach bone to bone
Tendons attach muscle to bone
What are the 5 functions of the Skeletal System?
1. Support: Bearing the weight of the body
2. Protection: Encasing essential organs
3. Movement: Joints provide movement for bones
4. Storage: Storage of minerals to be released into the bloodstream; storage of fat in yellow bone marrow
5. Manufacturing: Production of Red and White Blood Cells
What is the function of Osteoblasts?
produce new bone
What gland releases which hormone that stimulates osteoclasts to break down bone, adding calcium to the blood?
Parathyroid Gland; Parathyroid Hormone (PTH)
Name at least 4 bones of the cranium
1. Frontal
2. Sphenoid
3. Ethmoid
4. Parietal
5. Temoral
6. Occipital
Facial Bones include Nasal, Lacrimal, Maxilla, Mandible and Zygomatic
Name at least three types of synovial joints
1. Pivot
2. Hinge
3. Ball and Socket
4. Saddle
5. Condylar
6. Gliding or Plane
Hematopoiesis
What is the function of Canaliculi?
to keep the bones connected to nutrients and remove waste
How is a broken bone repaired?
1. Hematoma Forms
2. Callus Forms
3. Callus Ossifies
4. Compact Bone Forms
The primary (convex) and secondary (concave) curvatures of the spine allow for better ...
balance and distribution of weight throughout the body
Daily Double
What are the 3 structural types of joints and how are they different?
1. Fibrous - immovable or slightly movable; held together by fibrous connective tissue ex. between bones of the skull
2. Cartilanginous - immovable or slightly movable; held together by cartilage ex. between vertebrae, attachment of ribs
3. Synovial - highly movable; contain synovial fluid for frictionless motion ex. knee, elbow