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Ch 7 a/p
Question | Answer |
---|---|
The Skeletal System contains how many bones? What are the two major divisions of the skeletal? | 206; axial and appendicular |
What division of the skeleton forms the axis of the body? | Axial skeleton |
The axial skeleton consists of what body parts? | Skull, Vertebral column and rib cage |
The appendicular skeleton consists of what body parts? | Supports the appendages (limbs); consists of the bones of the arms and legs (upper & lower extremities) shoulder and pelvic girdles |
Name the various types of bones... | Short bones, Flat bones, Irregular bones, Sesamoid bones, Wormian bones |
This type of bone is a sutural bone found in between sutures and varies in number. | Wormian Bones |
This type of bone is shaped like a sesame seed and varies in number and not always completely ossified. | Sesamoid bones |
Name this type of bone that protects tendons from excessive wear & tear. | Sesamoid bones |
The patella and pisiform are examples of this bone. | Sesamoid bones |
This type of bone comes in a variety of complex shapes and made of varying amounts of spongy and compact bone. | Irregular bones |
The vertebrae and facial bones are examples of this type of bone. | Irregular bones |
Name this type of bone: Made of two almost parallel plates of combact bone around spongy bone. | Flat bones |
The sternum, ribs, scapula, hip bones and cranial bones are examples of this type of bone | Flat bones |
This bone is somewhat cube-shaped and its length is equal to its width and it is made mostly of spongy bone covered by a thick layer of compact bone. | Short bones |
Bones of the wrist except for the pisifrom which is a sesamoid bone and ankles except for the calcaneus which is irregular are examples of this bone. | Short bones |
These are structural features adapted for specific functions. | Bone Markings |
These sites allow the passage of short tissue (nerves, blood vessels, ligaments, and tendons) or formation of joints: fissure, foramen, fossa, sulcus, meatus | Depressions and Openings |
These projections or outgrowths on bone that form joints or attachment points for CT, such as ligaments and tendons | Processes |
Condlyes, Facets and Heads are processes that form _. | Joints |
Name the processes that form attachment points for CT. | Crest, epicondyle, line, spinous process, trochanter, tubercle, tuberosity |
In the skull, how many cranial bones are there? | Eight. |
In the Skull, how many facial bones are there? | Fourteen |
Name the 8 Cranial bones | frontal, 2 parietal, 2 temporal, occipital and sphenoid and ethmoid |
Name the 14 facial bones | mandible, 2 maxilla, 2 nasal, 2 lacrimal, 2 zygomatic, 2 palantine, 2 inferior nasal conchae, and the vomer. Only the mandible is movable. |
What is the only movable bone in the face? | Mandible |
These are immovable joints in an adult found only between cranial bones and holds the skull bones together. | Sutures |
T or F: Immovable joints between cranial bones found in babies are called Sutures. | False- Sutures are found in adults. Fontanelles or "soft spots" are found on babies. |
What is the name for paired cavities in certain cranial and facial bones near the nasal cavity; serve as echo chambers for sound in speaking & singing | Paranasal sinuses |
These serve as echo chambers for sound in speaking & singing | Paranasal sinuses |
Only bone in body that does not articulate with any other bone is called the _ bone. | Hyoid |
Where is the hyoid located? | In front of the neck between the mandible and larynx, suspended from the temporal bones by ligaments and muscles |
What is the function of the hyoid bone? | It supports tongue and provides attachment for muscles of tongue, neck and pharynx. |
What is the Vertebral Column (Spinal Column, Backbone)? | Made up of individual bones called vertebrae; vertebral canal houses the spinal cord and protects it. |
What are neck bones in the vertebral column known as? How many 7are there? | Cervical; |
What is C1? What is it's proper name? | A ring of bone without a body or spinous process; atlas |
What are the three abnormalities of the Spinal Column? | Scoliosis, Kyphosis, Lordosis |
This abnormality has an exaggerated thoracic curve or "hunchback" | Kyphosis |
This abnormality has an exaggerated lumbar curve or "swayback" | Lordosis |
The abnormal lateral curvature of the spine resulting from one leg being longer than the other, displacing the rib cage to one side | Scoliosis |
What is a Thoracic Cage? | A bony enclosure formed by the sternum, costal cartilages, ribs and bodies by thoracic vertebrae. |
What is the function of a Thoracic Cage? |