Bio 113-05 Axial Skeleton Key PDF

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Summary

Worksheet Key of Ch 5 of the class - Axial Skeleton...

Description

Human Anatomy Axial Skeleton

Name

axial skeleton consists of the bones along the central axis of the body, The including the skull, hyoid, vertebrae, and ribs. appendicular The bones to the axial skeleton.

skeleton consists of the limb bones and the girdles that anchor the limb

In adults, the skeleton is ordinarily comprised of a total of

206

bones.

True

False

Children have fewer bones than do adults.

True

False

In bones, depressions and openings serve as passages for nerves, blood vessels, and other soft tissue.

True

False

In bones, processes are projections that may be involved in articulations or may serve as attachment points for tendons and ligaments.

Depressions and Openings Fissure

Narrow slit

Foramen (plural foramina)

Hole-like opening

Fossa

Shallow depression

Groove, sulcus

Furrow or shallow trough

Meatus, canal

Tube-like opening

Processes Involved in Articulations Condyle

Large, rounded, smooth protuberance

Facet

Flat, smooth surface

Head

Rounded, spherical projection supported by neck (constriction in bone)

Processes that Serve as Attachment Points Epicondyle

Projection above a condyle

Crest

Prominent ridge or elongated projection

Line

Long, narrow ridge or border

Trochanter

Very large projection

Tubercle

Small to medium projection

Tuberosity

Small to medium projection

Malleolus

Broad, flat projection; around ankle

In the skull, there are a total of eight

cranial bones.

In the skull, there are a total of fourteen

facial bones.

The bone pictured below is the frontal

bone.

Sutures

are stitch-like joints between cranial bones.

The bone pictured below is the zygomatic

The hyoid other bones.

bone.

bone is located in the anterior part of the neck and does not articulate with any

In the vertebral column, there are a total of

7

cervical vertebrae numbered

In the vertebral column, there are a total of

12

thoracic vertebrae numbered T1-T12

In the vertebral column, there are a total of

5

lumbar vertebrae numbered

L1-L5

In the vertebral column, there are a total of

5

sacral vertebrae numbered

S1-S5

The most inferior vertebrae in the vertebral column are the Ribs attach to

thoracic

coccygeal

vertebrae.

The transverse foramen is an opening found in cervical The vertebrae pictured below are

thoracic

vertebrae. vertebrae.

C1-C7

vertebrae.

The vertebra pictured below is a

lumbar

The

is comprised of five vertebrae fused together.

sacrum

The intervertebral nerves pass.

vertebra.

foramina are openings between vertebra through which spinal

There are a total of twelve pairs of ribs. The ribs articulate with the thoracic

vertebrae.

The true ribs include ribs # 1

through # 7

The false ribs include ribs # 8

through # 12

The floating ribs include ribs # 11

and # 12

Ribs # 1

through #

10

are connected to the sternum by costal cartilage.

Ribs # 11

and # 12

are not connected to the sternum by costal cartilage.

True ribs are directly connected to the sternum by costal cartilage (have their own strip of cartilage connecting them to the sternum....