Skeletal System Word Scramble
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Question | Answer |
Muscles that form the iliopsoas | Psoas Major and Illiacus |
Mature bone cell, maintains bone matrix, live in lucunae, do not divide | Osteocyte |
Shaft of long bone | Diaphysis |
Wide part at the end of long bones | Epiphysis |
Perpendicular to the central canal, carry vessels into bone marrow | Compact/Dense Bone |
Basic unit of compact bone | Osteon |
Matrix forms open network of trabeculae, filled with bone marrow; does not contain osteons | Spongy/Cellaneous Bone |
Makes up 80% of the human skeleton, primary component of long bones | Compact/Dense Bone |
Bone type that is the primary component of ribs and shoulders | Spongy/Cellaneous Bone |
Found in shaft of long bones | Bone Marrow |
Produce osteoid (matrix) by secreting matrix compound | Osteoblasts |
Secrete acids and protein-digesting enzymes; dissolve matrix | Osteoclasts |
Bone Matrix | Osteoid |
Embryonic development of flat bones from an embryonic tissue called the mesenchyme; produces flat bones of skull, mandible, and clavicle | Intramembranous Ossification |
Ossifies bones that originate as hyaline cartilage | Endochondral Ossification |
Hormone made in kidneys; synthesis requires Vitamin D3, helps absorb calcium and phosphorus from digestive tract | Calcitrol |
Increases calcium ion levels | Parathyroid Hormone |
Bone mass loss that occurs with age | Osteopenia |
Upper jaw bone | Maxilla |
Lower jaw, only movable facial jaw | Mandible |
Cheek bones | Zygomatic |
Bone located at the inner corner of eye, contains tear ducts | Lacrimal |
Bone located under neck, supports larynx | Hyoid |
Elbow | Olecranon Process |
3 Bones that make up Pelvis | Ischium, Ilium, Pubis |
Vertibrae: Total, Cervical, Thoracic, and Lumbar | 24 total, 7 cervical, 12 thoracic, and 5 lumbar |
5 fused vertibrae | Sacrum |
4 fused vertibrae | Coccyx |
Made up of thoracic vertibrae, ribs, and sternum | Thoracic Cage |
7 ribs of this type | TRUE ribs |
3 ribs of this type | FALSE ribs (not attached to sternum directly) |
2 ribs of this type | FLOATING ribs (not attached to sternum at all) |
3 bones that form the sternum | Manubrium, Sternal Body, and Xiphoid Process |
Bones that make up pectoral girdle | Clavicles and Scapula |
How many bones make up the carpals in the wrists (both combined)? | 16 |
How many metacarpals make up the hands (both combined)? | 10 |
Hip Socket | Acetabulum |
Freely movable joint | Diathrosis |
Depressions | Foramen, Fossa, Meatus, Sinus |
Responsible for forced exhalation | Internal Intercostal |
Responsible for inhalation | External Intercostal |
Responsible for stabilizing/extending the knee | Vastus Lateralis |
Responsible for flexing of fingers | Flexor Digitorum Superficialis |
Responsible for flexion of elbow | Brachioradialis |
Responsible for flexion of wrist | Flexor Carpi Ulnaris |
Created by:
kcopeland10
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