Chapter 7- The Axial Skeleton Flashcards

0
Q

The axial skeleton provides an extensive surface area for the attachment of muscles that…

A
  1. Adjust the positions of the head, neck, and the trunk
  2. Perform respiratory movements
  3. Stabilize or position parts of the appendicular skeleton
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1
Q

The axial skeleton can be recognized because it…

A

Forms the longitudinal axis of the body

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2
Q

What includes bones found exclusively in the axial skeleton?

A

Skull, vertebrae, ribs, sternum, hyoid

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3
Q

The axial skeleton creates a framework that supports and protects organ systems in the…

A

Ventral body cavities

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4
Q

The bones of the cranium that exclusively represent single,unpaired bones are the…

A

Occipital, frontal, sphenoid, and ethmoid

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5
Q

The paired bones of the cranium are the…

A

Parietal and temporal

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6
Q

The associated bones of the skull include the…

A

Hyoid and auditory ossicles

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7
Q

The single, unpaired bones that make up the skeletal part of the face are the…

A

Mandible and vomer

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8
Q

The lines, tubercles, crests, ridges, and other processes on the bones represent areas that are used primarily for…

A

Attachment of muscles and bones

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9
Q

The sutures that articulate the bones of the skull are the…

A

Lamboid, Sagittal, coronal, squamous

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10
Q

Foramina, located on the bones of the skull, serve primarily as passageways for…

A

Nerves and blood vessels

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11
Q

The bones that make up the lateral wall and rumor of the eye orbit are the…

A

Maxilla, zygomatic, and sphenoid

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12
Q

The sinuses, or internal chambers in the skull, are found in the…

A

Sphenoid, frontal, ethmoid, and maxillary bones

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13
Q

The nasal complex consists of the…

A
  1. Frontal, sphenoid, and ethmoid bones
  2. Maxilla, lacrimal, and ethmoidal concha
  3. Inferior concha
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14
Q

The air filled chambers that communicate with the nasal cavities are the…

A

Paranasal sinuses

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15
Q

The primary function of the paranasal sinus mucus epithelium is to…

A
  1. Lighten the skull bones
  2. Humidify and warm incoming air
  3. Trap foreign particulate matter such as dust
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16
Q

Areas of the head that are involved in the formation of the skull are called…

A

Ossification centers

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17
Q

The reason the skull can be distorted without damage during birth is…

A

Fibrous connective tissue connects the cranial bones

18
Q

The anatomical structures that allows for distortion of the infant skull during the birthing process are called…

A

Fontanelles

19
Q

The most significant growth in the skull occurs before age 5 because…

A

The brain stops growing and cranial sutures develop

20
Q

The primary spinal curves that appear late in fetal development…

A

Accommodate the thoracic and abdominopelvic viscera

21
Q

An abnormal lateral curvature of the spine is called…

22
Q

The vertebrae that indirectly effect changes in the volume of the rib cage are the…

A

Thoracic vertebrae

23
Q

The most massive and least mobile of the vertebrae are the…

24
What identifies the sequence of the vertebra from superior to inferior?
Cervical, thoracic, lumbar, sacrum, coccyx
25
When identifying the vertebra, a numerical shorthand is used, such as C3. The C refers to the...
The region of the vertebrae
26
C1 and C2 have specific names, which are the...
Atlas and axis
27
The sacrum consists of five fused elements that afford protection for...
Reproductive, digestive, and excretory organs
28
The primary purpose of the coccyx is to provide...
An attachment site for a muscle that closes the anal opening
29
The first seven pairs of ribs are called true ribs, while the lower five pairs are called false ribs because...
They do not attach directly or the sternum
30
The skeleton of the chest, or thoracic cage, consists of...
Thoracic vertebrae, ribs, and sternum
31
The three components of the adult sternum are the...
Manubrium, body, and xiphoid process
32
Brain growth, skull growth, and completed crainial suture development occur...
By age 5
33
The area of the greatest degree of flexibility along the vertebral column is found from...
C3-C7
34
After a hard fall, compression fractures or compression-dislocation fractures most often involve...
Last thoracic and first two lumbar vertebrae
35
Intervertebral discs are found in between all the vertebrae except...
Between C1 and C2 and the sacrum and coccyx
36
Part of the loss that height that accompanies aging results from...
The decreasing size and resiliency of the intervertebral discs
37
The skull articulates with the vertebral column at the...
Occipital condyles
38
The saddle shaped feature of the sphenoid that house the pituitary gland is the...
Sella turcica
39
The growth of the cranium is usually associated with the...
Expansion of the brain
40
Beginning at the superior end of the vertebral canal and proceeding inferiorally, the...
Diameter of the cord and the size of the vertebral arch decrease
41
The vertebrae that are directly articulated with the ribs are the...
Thoracic only
42
During CPR, proper positioning of the hands is important so that an excessive pressure will not break the...
Xiphoid process