Anatomy of the Head, Neck and Trunk

Question 1

List the 4 , four sided bones forming the sides and roof of the skull

Answer 1

1. frontal bone
2. parietal bone
3. occipital bone
4. temporal bone

Question 2

bone of the lower jaw

Answer 2

mandible

Question 3

bone of the upper jaw

Answer 3

maxilla

Question 4

bone of the cheekbones

Answer 4

zygomatic bones

Question 5

Tempromandibular (jaw) joint and the movement it allows

Answer 5

formed between the mandibular condyle and the temporal bone

allows for:

• elevation/depression
• side to side
• backwards and forwards

Question 6

Atlanto-Occipital Joint and the movement it allows

Answer 6

formed between the occipital condyles at the base of the skull and the first cervical vertebra, also known as the atlas

allows:
- flexion and extension of the neck (yes joint)

Question 7

action of the orbicularis oculi

Answer 7

closes the eye

Question 8

orbicularis oculi - origin

Answer 8

medial margin of the orbit

Question 9

orbicularis oculi - insertion

Answer 9

skin of the eyelid

Question 10

action of the orbicularis oris

Answer 10

closes the lips

Question 11

orbicularis oris - origin

Answer 11

maxilla and mandible

Question 12

orbicularis oris - insertion

Answer 12

skin at the corner of the mouth

Question 13

action of the buccinator

Answer 13

compresses the cheek and allows the sucking action

Question 14

Buccinator - origin

Answer 14

maxilla and mandible

Question 15

Buccinator - Insertion

Answer 15

fibres of the orbicularis oris

Question 16

action of the Masseter

Answer 16

elevates the mandible (closes the jaw)

Question 17

Masseter - origin

Answer 17

zygomatic arch

Question 18

Masseter - Insertion

Answer 18

mandible

Question 19

action of the Temporalis

Answer 19

elevates and retracts the mandible

Question 20

Temporalis - origin

Answer 20

temporal bone

Question 21

Temporalis - Insertion

Answer 21

Mandible

Question 22

Action of the Sternocleidomastoid

Answer 22

Both contract = neck flexes
Left Contracts = head rotates to the right
Right Contracts = head rotates to the left

Question 23

Sternocleidomastoid - Origin (2)

Answer 23

1. sternum

2. Sternal End of Clavicle

Question 24

Sternocleidomastoid - Insertion

Answer 24

Mastoid Process of the Temporal Bone

Question 25

Action of the Trapezius

Answer 25

extends the neck when the scapula is fixed

Question 26

Trapezius - Origin (2)

Answer 26

1. occipital bone | 2. cervical and thoracic vertebrae

Question 27

Trapezius - Insertion (3)

Answer 27

1. clavicle 2. acromion 2. Spine of Scapula

Question 28

how many cervical vertebrae

Answer 28

7

Question 29

how many thoracic vertebrae

Answer 29

12

Question 30

how many lumbar vertebrae

Answer 30

5

Question 31

how many sacral vertebrae

Answer 31

5

Question 32

how many coccygeal vertebrae that make up the coccyx

Answer 32

4

Question 33

Atlas - Axis Joint - what is it and what movement does it allow ?

Answer 33

the first intervertebral joint between the 1st and 2nd cervical vertebrae - pivot joint (No joint)

Question 34

what are the 3 different types of ribs

Answer 34

1. true (7) 2. false (3) 3. floating (2)

Question 35

what are the 3 structures of the sternum

Answer 35

1. manubrium 2. Body 3. xiphoid process

Question 36

when are the external intercostal muscles used

Answer 36

for inspiration

Question 37

Diaphragm - Origin (3)

Answer 37

1. xiphoid process 2. lower ribs 3. 1st lumbar vertebra

Question 38

Diaphragm - Insertion

Answer 38

a central tendon

Question 39

Rectus Abdominis - action

Answer 39

flexes

Question 40

Rectus Abdominis - Origin

Answer 40

Superior surface of pubic bone

Question 41

Rectus Abdominis - Insertion (2)

Answer 41

1. Xiphoid process of sternum | 2. Costal Cartilage of ribs 5-7