Activity No. 7 Axial Skeleton PDF

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axial skeleton review, more on parts and their description...

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Mid Activity No. 7 The Skeletal System: The Axial Skeleton

1. Membrane-filled spaces between cranial bones that enable the fetal skull to modify its size and shape for passage through the birth canal are called fontanels 2. The hypophyseal fossa of the sella turcica of the sphenoid bone contains the pituitary gland 3. The regions of the vertebral column that consist of fused vertebrate are the sacrum & coccyx 4. The atlanto-occipital joints allow you to rotate the head, as in signifying “no” altals & axis 5. Ribs that are not attached to the sternum are known as the true ribs. False 6. In which of the following bones are paranasal sinuses not found? 7. Which of the following pairs are mismatched? 8. What are the following bones are not paired in the skull? Frontal, occipital, sphenoid, ethmoid 9. The suture located between a parietal and temporal bone is the Squamous suture 10. The primary vertebral curves that appear during fetal development are (1) cervical curve, (2) thoracic curve, (3) lumbar curve, (4) coccyx curve, (5) sacral curve (2) Thoracic curve & (5) Sacral curve

11. Which of the following are functions of the cranial bones? (1) protection of the brain; (2) attachment of muscles that move the head; (3) protection of the special sense organs; (4) attachment to the meninges; (5) attachment of muscles that produce facial expressions.

All of the above 12. IDENTIFY THE FOLLOWING a) Prominent ridge or elongated projection crest b) Tubelike opening meatus c) Large round protuberance at the end of a bone condyle d) Smooth, flat articular surface facet e) Sharp, slender projection spinous process f) Opening for passage of blood vessels, nerves, or ligaments foramen g) Large, rounded, rough projection tuberosity h) Shallow depression fossa i) Narrow slit between adjacent parts of bones for passage of blood vessels or nerves fissure

13. IDENTIFY THE FOLLOWING WHAT BONE THEY ARE LOCATED TO

a) Supraorbital foramen frontal bone b) Temporomandibular joint articulation of mandibular fossa & articular tubercle of temporal bone c) External auditory meatus temporal bone d) Foramen magnum occipital bone e) Optic foramen sphenoid bone f) Cribriform plate ethmoid bone g) Palatine process maxilla h) Ramus, body, and condylar process mandible i) Transverse foramina, bifid spinous processes cervical vertabrae j) Dens atlas k) Promontory sacrum l) Costal cartilages ribs

m) Xiphoid process sternum

14. Match the following (the same answer may be used more than once) TYPES OF BONES ACCORDING TO SHAPE:

a) Bones that have greater length that width and consist of a shaft and a variable number of extremities long bones b) Cube-shaped bones that are nearly equal in length and width short bones c) Bones

that

develop

in

certain

tendons

where

there

is

considerable friction, tension, and physical stress. Sesamoid bones d) Small bones located within joints between certain cranial bones sutural bones e) Thin bones composed of two nearly parallel plates of compact bone enclosing a layer of spongy bone flat bones f) Bones with complex shapes, including the vertebrae and some facial bones irregular bones g) Patella is an example Sesamoid bones h) Bones that provide considerable protection and extensive areas for muscle attachment flat bones i) Include femur, tibia, fibula, humerus, ulna, and radius long bones j) Include cranial bones, sternum, and ribs flat bones k) Include almost all of the carpal (wrist) and tarsal (ankle) bones short bones

15. Identify the following bone describe:

a) Forms the forehead forntal bone

b) Form the interior lateral aspects of the cranium and part of the cranial floor; contain zygomatic process and mastoid process temporal bones c) Forms part of the anterior portion of the cranial floor, medial wall of the orbits, superior portions of nasal septum, most of the side walls of the nasal cavity; is a major supporting structure of the nasal cavity ethmoid bone d) Form the prominence of the cheek and part of the lateral wall and floor of each orbit zygomatic bone e) The largest, strongest facial bone; is the only movable skull bone mandible f) A roughly triangular bone on the floor of the nasal cavity; one of the components of the nasal septum vomer g) Form greater portion of the sides and roof of the cranial cavity parietal bones h) Forms the posterior part and most of the base of the cranium; contains the foramen magnum occipital bone i) Called the keystone of the cranial floor; contains the sella turcica, optic foramen, and pterygoid processes sphenoid bone j) Form the bridge of the nose nasal bones k) The smallest bones of the face; contain the vertical groove that houses a structure that gathers tears and passes them into the nasal cavity lacrimal bones l) Does not articulate with any other bone hyoid bone m) Unite to form the upper jawbone and articulate with every bone of the face except the lower jawbone maxillae n) Form the posterior part of the hard palate, part of the floor and lateral wall of the nasal cavity, and a small portion of the floors of the orbits palatine bones

o) Scroll-like bones that form a part of the lateral walls of the nasal cavity; functions in the turbulent circulation and filtration of air inferior nasal conchae...