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A&P 1 Ch 6 part 1
The Skeletal System 1
Question | Answer |
---|---|
immovable fibrous joints in skull | sutures |
only movable bone of skull | mandible |
external cranium bones | occipital, parietal, interparietal, frontal, temporal |
external facial bones | incisive, nasal, maxillary, zygomatic, mandible |
large hole where medulla oblongatta and arteries enter cranium | foramen magnum |
c1 also called this | atlas |
cats and horsesa are only ones with these cranium bones | interparietal bones |
temporal bones form what joints with the mandible | TMJ joints |
paranasal sinuses | frontal, ethymoid, sphenoid, maxillary |
bones of the ear | malleus, incus, stapes |
most rostral bones, house upper incisors | incisive bones |
horizontal portion of mandible containing mental foramen | shaft |
vertical portion, at caudal end where articular condyles forming tmj are located | ramus |
internal bones of face | palatine, pterygoid, turbinates, vomer bone |
hyoid apparatus | located between caudal end of mandible, helps with swallowing |
spinal column order | cervical, thoracic, lumbar, sacrial, coccygeal |
vertebral formula dog | c7, t13, l7, s3, c 5-23 |
vertebral formula cat | c7, t13, l7, s, c 20-23 |
2nd cervical vertebrae | axis |
cartilage discs that seperate adjacent vertebral bodies | intervertebral discs |
spinous process | projects dorsally |
transverse precess | projects laterally |
tall spinous processes | thoracic vertebrae |
bulky bodies | lumbar vertebrae |
fuse together to form solid structure | sacral vertebrae |
number and shape varies | coccygeal vertebrae |
number of pairs of ribs is usually the same as what | number of thoracic vertebrae |
costal cartilage meets what | sternum |
last sternebrae | xiphoid process |
breastbone | sternum |
1st sternebrae | manubrium |
closes the jaw | masseter |
extend the head and neck | trapezius, splenius |
extends head and neck, pulls front leg forward | brachiocephalicus |
flexes head and neck | sternocephalicus |
inspiratory muscles | diaphram, external intercostal muscles |
expiratory muscles | abdominal muscles, internal intercostal muscles |
layers of abdominal muscles | external abdominal oblique, internal abdominal oblique, transversus abdominus, rectus abdominus |
left and right parts of each come together at the | linea alba |
flexes the shoulder | latissimus dorsi |
adduct the front leg | pectoral |
abducts and flexes the shoulder joint | deltoid |
flexes the elbow joint | biceps |
extends the elbow joint | triceps |
extends the carpus | extensor carpi radialis |
flexes the digit | deep digital flexor |
extensor muscles of hip | gluteal |
main extensor muscle of the stifle joint | quadriceps |
extends hip joint, main flexors of stifle joint | biceps |
extensor muscle of hock | gastrocnemius |