Anatomy Lab Exam 1

I did not make this (not my work!)

Axial Skeleton

Bones of the head and trunk

How many bones are in the axial skeleton?

80 bones

The skull has ___ cranial bones

8

The skull has ___ facial bones

14

The skull has ___ auditory ossicles

6

The skull has ___ hyoid bone

\n 1

The Thoracic Cage has ___ ribs

24

The Thoracic Cage has ___ sternum

1

The Vertebral Column has ____ vertebrae

24

The Vertebral Column has ___ sacrum

1

The Vertebral Column has ___ coccyx

1

What are the functions of the axial skeleton?

* Supports and protects
* Attachment for muscles
* Adjust the position of the head, neck, and trunk
* Perform breathing movement
* Stabilizes parts of the appendicular skeleton

Calvaria

skullcap; comprised of occipital (right and left), temporal (right and left), parietal, and frontal bones

Function of Calvaria (skullcap)

* Supports and protects the brain
* Muscle attachment for the eyes, jaws, and head

Sutures

* Immovable joints that connect the skull bones

Name this bone

Frontal Bone

Name this bone

Occipital Bone

Name this

Zygomatic Process of Frontal Bone

Name This

Orbital Plate of Frontal Bone (on ethmoid)

Name this suture

Lambdoid Suture

Name this suture

Sagittal Suture

Name this suture

Coronal Suture

Name This Foramen

Jugular Foramen

Name this bone

Occipital Condyles

Name this bony landmark

Occipital Protuberance

Name this

Nuchal Lines of Occipital Bone

Name this area

Petrous Area of the Temporal Bone

Name this part of the temporal bone

Squamous Part of Temporal Bone

Name this bone

Temporal Bone

Name this

External Acoustic Meatus

Name this

Mastoid Process

Name this

Styloid Process

Name this process of the temporal bone

Zygomatic Process of Temporal Bone

Name this bone

Vertebrae

Name this structure

Intervertebral Discs

Protects the spinal cord

Vertebral Arch

Large foramen formed by vertebral arch and posterior aspect of vertebral body

Vertebral Foramen of Cervical Vertebra

Roof of the vertebral arch

Laminae of Vertebrae

Name this specific part of the thoracic vertebra

Spinous Process

Name the structure

Transverse Process of vertebra

Flat articular surfaces covered with hyaline cartilage

Facets of Vertebrae

Two points of the vertebrae that articulate (form joints) with the two inferior articular facets

Superior Articulating Facet

Points that connect with superior to create joints

Inferior Articulating Process

Curvatures of the spine (backbone) or spinal column (vertebral column)

Spinal Curvatures

Continuation of vertebral canal, runs UNDER the median sacral crest

Sacral Canal of Sacrum

Fused spinous processes
Four pairs of sacral foramina open to either side

Median Sacral Crest

Holes in sacrum

Sacral Foramina

Name the structure

Coccyx

Name the structure

Sternum

Name the structure

Manubrium of Sternum

The bones in the chest that protect the heart and lungs.

Ribs

* Ribs 1-8
* Attatch to sternum

Vertebrosternal Ribs (true)

* Ribs 8-10
* Do not attatch to sternum
* Cartilage fuses together and merges with cartilage of rib 7 before reaching sternum

Vertebrochondral Ribs (false)

* Ribs 11-12
* Do not attach to sternum at all

Vertebral (floating) Ribs

Articulates with the costal facet of a thoracic vertebral body.

Head of the rib

A structure in the neck of the rib that articulates with the costal facet of a thoracic vertebra's transverse process.

Tubercle of rib

Main part of rib

Body of the rib

Between head and tubercle

Neck of the rib

Clavicle and scapula

Pectoral Girdle

* Name the bone
* S Shape

Clavicle

What structure is highlighted?

Acromial End of Clavicle

What structure is highlighted?

Sternal End of Clavicle

Shoulder Blade

Scapula

Name the structure.

Coracoid process of scapula

The lateral end of the spine of the scapula that articulates with the clavicle to form the AC joint

Acromion of scapula

Name the structure.

Glenoid fossa of scapula

Name the structure.

Spine of scapula

Name the region of the bone.

Medial border of scapula

Origin of teres minor

Lateral border of scapula

Name this specific area of the scapula.

Supraspinous Fossa

Name this specific area of the scapula.

Infraspinous Fossa

* Other side of scapular
* Indent of the body

Subscapular Fossa

Long bone of upper arm

Humerus

articulates with glenoid cavity

Head of the humerus

distal to head of humerus; visible as an oblique groove

* just separates the head

Anatomical neck of humerus

Lesser tubercle of humerus

Groove between the greater and lesser tubercles of the humerus

Intertubercular groove

* Raised area on lateral surface of humerus to which deltoid muscle attaches
* Below the intertubercular groove

Deltoid Tuberosity

Name the structure.

Medial epicondyle of humerus

Name the structure.

Lateral epicondyle of humerus

Indent

Coronoid fossa of humerus

Name the structure.

Capitulum of humerus

Name the structure.

Trochlea of humerus

Name this specific part of the humerus.

Olecranon Fossa

\

Body of Sternum

Name the portion of the bone.

Xiphoid process of sternum

* In your forearm

Ulna

\

Radius

Olecranon

Trochlear notch of ulna

Coronoid process of ulna

Radial Notch of ulna

Styloid process of ulna

Head of radius

Neck of radius

Styloid process of radius

Ulna notch of radius

Radial tuberosity of radius

Metacarpals (1-5)

Counting from THUMB =1
PINKY = 5

Phalanges