PNB 2264 Practical 1

Temporal bone

Pectoralis Minor

Occipital bone

Frontal bone

Parietal bone

Occipital condyles

Mastoid process

Mandibular fossa

Zygomatic process

External auditory meatus

Styloid process

Stylomastoid

Sphenoid

Greater wings sphenoid

Lesser wings sphenoid

Pterygoid Process sphenoid

Optic foramen sphenoid

Ethmoid

Cribiform plate ethmoid

Crista galli ethmoid

Maxillae

upper jaw bone

Zygomatic bone

Lacrimal

Nasal bone

bridge of nose

Mandible

lower jaw bone

Palatine

fused bones that form posterior part of hard palate

Coronal suture

Sagittal suture

lamboidal suture

squamous suture

Malleus

ear ossicles

Incus

ear ossicles

Stapes

hyoid bone

Does not articulate with any other bone in the body

Foramen magnum

"big hole" largest foramen, entry for spinal cord

Jugular foramen

between temporal and occipital bones, entry of cranial nerves glossopharyngeal, vagus,accessory

carotid canal

anterior and medial to the jugular foramen, entry of internal carotid artery

Superior orbital fissure

between greater and lesser wings of the sphenoid bone, entry of cranial nerves

Cervical vertebrae

7 in the neck

Atlas (C1)

Large facets so occipital bone can sit on it

Axis (C2)

Dens used to attach to atlas

anterior arch atlas

posterior arches atlas

Thoracic vertebrae

12 of them, have extra facets for the ribs

Cartilagenous joint, symphysis

Lumbar vertebrae

5 of them, bottom ones with large bodies to hold weight

Sacrum

5 fused bones

Coccyx

3-5 fused bones (tailbone)

Sternum

Manubrium

xiphoid process sternum

sternal angle

True ribs

1-7

False ribs

8-12

Floating ribs

are also false ribs

Costal Cartilages

connect ribs to sternum

Parts of the ribs

head, articular tubercle, articular facet

Temporalis

Closes jaw (elevates mandible)

Masseter

closes jaw (elevates and retracts mandible)

Digastricus

opens mouth (lowers mandible) elevates and holds hyoid during speech and swallowing

Sternocleidomastoid

Obliques the skull - tilt same side/turn opposite side.

Medial Pterygoid

closes jaw; lateral excursion(jaw side to side)

Lateral Pterygoid

lateral excursion(jaw side to side). Both pterygoids work together to lower mandible and yawn

Trapezius

(back, posterior)elevates, depresses, and retracts scaupla, both acting together, draw head dorsally (back)

Latissimus Dorsi

(back, posterior)Adducts and extends shoulder (humerus); rotates shoulder(humerus); draws shoulder down and backward

Pectoralis major

(anterior) flexion, adduction and medial rotation of shoulder (humerus)

Clavicle

*know right vs left

Scapula

*know right vs left

Spine of scapula

acromion process scapula

coracoid process scapula

glenoid cavity scapula

Humerus

*know right vs left

Head of humerus

neck of humerus

shaft of humerus

trochlea of humerus

capitulum of humerus

Radius

*know right vs left

radial tuberosity

styloid process of radius

Ulna

*know left vs right

trochlear notch of ulna

olecranon process of ulna

styloid process of ulna

Carpus

8 carpal bones

Metacarpus

5 bones in palm

Phalanges

14 finger bones

Deltoid

abducts shoulder (humerous); posterior deltoid-extension of shoulder; anterior deltoid flexes shoulder

Rotator cuff muscles

4 of them

infraspinatus

supraspinatus

subscapularis

teres minor

Infraspinatus

rotator cuff muscle

1. lateral rotation of shoulder (humerus);

2. ADduction of humerus (shoulder)

Posterior, looks like triangle

Supraspinatus

rotator cuff muscles

aBducts shoulder (humerus)