Practical 3: Axial

Identify the blue shaded bone:

Identify the blue shaded bone:

Frontal Bone

Identify the blue shaded bone:

Parietal Bone

Identify the blue shaded bone:

Temporal Bone

Identify the blue shaded bone:

Occipital Bone

Identify the blue shaded orange:

Ethmoid Bone

Identify the blue shaded bone:

Sphenoid Bone

Name the 6 Cranial Bones

1)Frontal 2) Parietal 3) Temporal 4) Occipital 5) Ethmoid 6) Sphenoid

Identify the blue shaded bone:

Maxilla

Identify the purple shaded bone:

Mandible

Identify the blue shaded bone:

Nasal

Identify the blue shaded bone:

Lacrimal

Identify the blue shaded bone:

Zygomatic

Identify the bone found at the arrow:

Inferior Nasal Concha

Identify the blue shaded bone:

Vomer

Identify the blue shaded bone:

Perpendicular Plate

Name the 8 Facial Bones

1) Maxilla 2) Mandible 3) Nasal 4) Lacrimal 5) Zygomatic 6) Inferior Nasal Concha 7) Vomer 8) Perpendicular Plate

What bone is shaded in light blue?

Palatine Bone

What structure will you find at 6?

Superior Nasal Conchae

What bone is shaded in blue?

Middle Nasal Conchae

What bone is shaded in blue?

Inferior Nasal Conchae

Name the 3 divisions of the Nasal Conchae

1) Superior Nasal Conchae 2) Middle Nasal Conchae 3) Inferior Nasal Conchae

What is the function of nasal conchae in the respiratory system?

Create turbulent airflow to warm and humidify air

Name that suture:

Coronal

Name that suture:

Coronal

Name that suture:

Sagittal

Name that suture:

Squamous

Name that suture:

Lambdoid

Name the 4 Cranial Sutures

1) Coronal 2) Sagittal 3) Squamous 4) Lambdoid

Name the 6 muscles of the skull that may show up on the exam

1) Sternocleidomastoid 2) Masseter 3) Orbicularis Oculi 4) Orbicularis Oris 5) Trapezius 6) Temporalis

Name that muscle!

Sternocleidomastoid Muscle

Name that bone marking:

Manubrium

Name that bone marking:

Clavicle Bone (sternocleidomastoid muscle)

Name the two origins of the Sternocleidomastoid Muscle:

1) Manubrium 2) Clavicle bone

Name that bone marking:

Mastoid Process

Name the insertion of the sternocleidomastoid muscle:

Mastoid Process

What are the 2 actions of the Sternocleidomastoid Muscle?

1) Lateral flexion 2) Rotation of the Neck

Name that muscle!

Masseter Muscle

Name that bone marking.

Zygomatic Arch

Name the origin of the Masseter Muscle:

Zygomatic Arch

Name that bone marking:

Mandibular angle

Name the insertion of the Masseter Muscle

Mandibular angle

What action does the masseter muscle perform?

Elevation of the mandible (close jaw)

Name that muscle!

Orbicularis Oculi

Name the 3 origins of the Orbicularis Oculi Muscle:

1) Frontal bone 2) Zygomatic bone 3) Maxilla bone

This structure is the insertion for which muscle?

Orbicularis Oculi

What is the action of the Orbicularis Oculi?

Close eyelids (blink)

Name that muscle!

Orbicularis Oris

What are the two origins of the Orbicularis Oris?

1) Maxilla Bone 2) Mandible Bone

Name the insertion of the Orbicularis Oris:

Lips

What is the action of the Orbicularis Oris muscle?

Purse lips (kiss)

Name that muscle!

Trapezius

Name the bone marking found at 7

Spinous Process of Cervical vertebrae

Name the bone marking found at 6:

Spinous Process of thoracic Vertebrae

Name that bone marking

External Occipital Protuberance

Name the 3 origins of the Trapezius muscle:

1) Spinous process of cervical vertebrae 2) Spinous process of thoracic vertebrae 3)External Occipital protuberance

Name that bone marking

Spine of Scapula

Name that bone marking

Acromion Process of Scapula

Name the two insertions of the trapezius muscle:

1) Spine of Scapula 2) Acromion process of scapula

What are the five actions of the trapezius muscle?

1)Elevation 2) Depression 3) Retraction 4) Superior Rotation 5) Inferior Rotation

What muscle performs 5 of the 6 major scapular actions?

The trapezius

Name that muscle!

Temporalis Muscle

Name that bone marking

Temporal Fossa

What is the origin of the temporalis muscle?

Temporal Fossa

Name that bone marking

Coronoid Process

Name the insertion point of the temporalis muscle

Coronoid Process

What is the action of the Temporalis Muscle?

Elevation of the mandible/jaw (chewing)

Five of the six eye muscles share THIS origin:

Annular Ring

All six eye muscles insert on what structure?

Sclera of the eyeball

Name that structure of the eye: FINISH THIS

Annular Ring

What is the name of the only eye muscle that does not originate on the annular ring?

Inferior Oblique Muscle

What is the origin of the inferior oblique muscle?

Maxilla Bone

What is the action of the superior rectus muscle?

look up

What is the action of the inferior rectus muscle?

look down

What is the action of the medial rectus muscle?

look inwardly

What is the action of the lateral rectus muscle?

look outwardly

What is the action of the superior oblique muscle?

medial rotation of the eye

What is the action of the inferior oblique muscle?

Lateral rotation of the eye

Name the 9 axial muscles below the skull that you will be expected to know for the exam:

1) Levator Scapulae 2) Rhomboid Major 3) Rhomboid Minor 4) Pectoralis Major 5)Pectoralis Minor 6)Rectus Abdominis 7) External Intercostal Muscle 8)Internal Intercostal Muscle 9)Latissimus Dorsi

Name that muscle!

Levator Scapulae

Name that bone marking

Spinous Process of Cervical Vertebrae

Name the origin of the Levator Scapulae Muscle

Spinous Process of Cervical Vertebrae

Name the bone marking found at 11:

Medial Border of Scapula

Name the insertion of the Levator Scapulae Muscle

Medial Border of Scapula

What are the two actions of the Levator Scapulae Muscle?

1) Elevation 2) MINORLY retraction

Name that muscle!

Rhomboid Major Muscle

Name that bone marking

Spinous Process of Cervical Vertebrae

Name the bone marking found at 6

Spinous Process of Thoracic Vertebrae

What is the origin of the Rhomboid Major Muscle?

1) Spinous Process of Cervical Vertebrae 2) Spinous Process of Thoracic Vertebrae

Name the bone marking found at 11

Medial Border of Scapula

What is the insertion of the Rhomboid Major Muscle?

Medial Border of Scapula

What are the 2 actions of the Rhomboid Major Muscle?

1) Retraction of Scapula 2) MINORLY elevation of the scapula

Name that muscle!

Rhomboid Minor Muscle

Name that bone marking

Spinous Process of Cervical Vertebrea

Name the bone marking found at 6:

Spinous Process of Thoracic Vertebrae

Name the bone marking found at 11:

Medial Border of Scapula

What is the origin and insertion of the muscle?

O: Spinous Process of Cervical AND thoracic Vertebrae
I: Medial Border of scapula

What are the 2 actions of the Rhomboid Minor Muscle?

1) Retraction of the Scapula 2) MINORLY elevation of the scapula

Name that muscle!

Pectoralis Major

Name that bone:

Sternum (body of sternum)

Name that bone:

Clavicle