A&P Ch6-8 Test rw
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Frontal | forehead bone
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| Zygomatic | cheekbone
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| Mandible | lower jaw, site of mental foramen,
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| Nasal | bridge of nose
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| Palatine | posterior bones of the hard palate
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| Parietal | much of the lateral and superior cranium
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| Occipital | most posterior part of cranium, condyles here articulate with the atlas, foramen magnum
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| Sphenoid | single, irregular, bat-shaped bone forming part of the cranial floor, site of sella turcica,
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| Lacrimal | tiny bones bearing tear ducts
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| Maxilla | anterior part of hard palate
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| Ethmoid | superior and medial nasal conchae fromed from its projections, site of cribriform plate, bears an upward protrusion, crista galli
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| Temporal | site of mastoid process, styloid process, middle ear found here
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| Hyoid | small u-shaped bone in neck, where many tongue muscles attach
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| Vomer | nasal septum
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| Which 4 bones contain paranasal sinuses? | maxilla, sphenoid, ethmoid, frontal
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| What bones contain alveoli bearing teeth? | Mandible and maxilla
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| Suture | interlocking joints that joins bones
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| Which skull bone is not joined by a suture? | mandible
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| Which bones are connected by the lambdoid suture? | occipital and parietal
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| Which bones are connected by the Squamous suture? | temporal and parietal
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| What are the 8 bones of the cranium? | parietalx2, temporalx2, frontal, occipital, sphenoid, epthmoid
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| Function of the sinuses | lighten the facial bones, and resonance chambers for speech
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| What is the orbit? | the socket that holds the eye
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| What bones contribute to the formation of the orbit? | ethmoid bone, frontal bone, Maxillae, lacrimal, palatine
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| Why can the sphenoid bone be called the keystone of the cranial floor? | it comes in contact with all the other cranial bones
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| Atlas | works with occipital condyle to allow head to nod, supports the head
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| Axis | provides a pivot for rotation of the atlas
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| Cervical vertebra | contains foramina in the transverse processes which the vertebral arteries ascend to reach the brain
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| Coccyx | tail bone, fused vertebrae
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| Sacrum | composite bone, articulates with the hip bone laterally
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| Lumbar vertebra | massive vertebrae weight-sustaining
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| Thoracic vertebra | transverse processes faceted for articulation with ribs, spinous process pointing sharply downward
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| Cavity enclosing the nerve end | vertebral foramen
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| Weight-bearing portion of the vertebra | body
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| Provide levers against which muscles pull (vertebral) | spinous process, transverse process
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| Provide an articulation point for the ribs | body and transverse process
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| Openings providing for exit of spinal nerves | intervertebral foramina
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| Structures that form an enclosure for the spinal cord | body and vertebral arch
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| Describe how a spinal nerve exists from the vertebral column | through the intervertebral foramina
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| Name two structures that permit flexibility of the vertebral column | s-shaped construction of the vertebrae, presence of intervertebral discs
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| What kind of tissue composes the intervertebral discs | central gelatinous and collagen fibers
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| What is a herniated disc? | when the annulus purpose ruptures, parts of the disc might press on the spinal cord causing numbness or excruciating pain
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| What two spinal curvatures are obvious at birth? | Thoracic and sacral
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| Under what conditions do the secondary curvatures develop? | When the baby begins holding its head and when the baby starts to walk
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| How is the arm held clear of the widest dimension of the thoracic cage? | the clavicle acts as a brace to hold the arm away from the top of the thorax
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| What is the total number of phalanges in the hand? | 14
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| What is the total number of carpals in the wrist? | 8
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| Pectoral girdle | flexibility most important, lightweight, insecure axial and limb attachment
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| Pelvic | massive, secure axial and limb attachments, weight-bearing most important
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| What organs are protected by the pelvic girdle | ovaries, urinary bladder, intestines
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| Deltoid tuberosity | raised area on lateral surface of humerus to which deltoid muscle attaches
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| Acromion | Scapular region to which the clavicle connects
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| Glenoid Cavity | depression in the scapula that articulates with the humerus
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| Coracoid process | process above the glenoid cavity that permits muscle attachment
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| Trochlea | distal condyle of the humerus; adjoins the radius
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| Capitulum | rounded knob on the humerus; adjoins the radius
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| Coronoid fossa | anterior depression, superior to the trochlea, which receives part of the ulna when the forearm is flexed
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| Cartilaginous | allows slight movement, includes joints between the vertebral and pubic symphysis, cartilage connecting bony portions
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| Fibrous | essentially immovable joints, sutures, bones region are united by fibrous connective tissue
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| Synovial | all characterized by a fibrous articular capsule with synovial membrane surrounding a joint cavity, freely movable or Diarthrotic, hip, knee and elbow joints
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| Ligament | unite bones, prevent excessive motion, the more ligament the stronger
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| Tendon | most important stabilizing factor kept useful by toning
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| Articular cartilage | covers the surface of the bones forming the joints
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| Synovial membrane | produce synovial liquid which reduces friction
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| Bursa | sacs that reduces friction when tendons cross bone
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| Ball and socket | hip joint, multiaxial
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| Condyloid | joint between forearm bones and wrist, skull and vertebral column, biaxial joints
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| Gliding | intervertebral joints (between articular processes), intercarpal joints,
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| Hinge | uniaxial joints,
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Created by:
MitsukiTenshi