Axial skeleton - correct answer Forms the central supporting axis of the body. Includes the skull, auditory
ossicles, hyoid bone, vertebral column, and thoracic cage
Appendicular skeleton - correct answer Includes the bones of the upper limb and pectoral girdle and the
bones of the lower limb and pelvic girdle.
Periosteum - correct answer Bone is covered with a sheath of fine fibers
Endosteum - correct answer Lines the spongy bone. Thin layer of reticular connective tissue.
Epiphyseal plate - correct answer Hyaline cartilage separates the marrow spaces of the epiphysis and
diaphysis. Zone where bones grow in length. In adults in turns into a epiphyseal line.
Regulation of blood calcium - correct answer Low blood calcium: Parathyroid hormone breakdowns bone
by osteoclasts, resulting in blood calcium level to increase back to normal
High blood calcium level: Happens with thyroid. the calcitonin buildup of bone by osteoblasts and blood
calcium level decreases.
The skull - correct answer Composed of 22 bones. Connected by immovable joints called sutures
Paranasal sinuses - correct answer Front, sphenoid, ethmoid, and maxillary sinuses
Supraorbital margin - correct answer Deep to the eyebrows it has a ridge. the supraorbital foramen is a
passage for nerve, artery, and veins.
Glabella - correct answer The smooth just above the root of the nose.
Coronal suture - correct answer
Sagittal suture - correct answer
, A&P 1 Lab: Test 2 ( ch. 6-10)
Lambdoid suture - correct answer
Mandibular fossa - correct answer Depression where the mandible articulates with the cranium
Mastoid process - correct answer Filled with small air sinuses that communicate with the middle-ear
cavity
Foramen magnum - correct answer Admits the spinal cord to the cranial cavity and provides a point of
attachment for the dura mater
Spenoid bone: The sella turcica house what? - correct answer Pituitary gland
The mandible - correct answer Strongest bone of the skull and the only one that can move significantly
Mandibular condyle - correct answer An oval knob that articulates with the mandibular fossa of the
temoral bone
Vertebral column - correct answer Cervical (7)
Thoracic (12)
Lumbar (5)
Sacrum (5, fused)
Coccyx (4, fused)
Structure of a vertebra - correct answer Transverse process: extends laterally from the point where the
pedicle and lamina meet
Spinous process: The project at the back
Vertebra C1
Vertebra C2 - correct answer -The atlas, supports the head
-The axis, allows rotation of the head. has anterior knob called dens