Unit 3 Axial Skeleton Part 2 Bone Markings

Question 1

What is a foramen?

Answer 1

A hole or openong in a bone or between body cavities

Question 2

What is a meatus?

Answer 2

A canal or tunnel-like passageway

Question 3

What is a condyle?

Answer 3

Rounded articular projection

Question 4

What is a process?

Answer 4

Any bony prominence

Question 5

What is a sinus?

Answer 5

Cavity within a bone, filled with air and lined with mucous membrane

Question 6

What is a fissure?

Answer 6

Narrow, slitlike opening

Question 7

What is a notch?

Answer 7

Indentation at the edge of a structure

Question 8

What is a suture?

Answer 8

Fibrous bands of tissue that connect the bones of the skull

Question 9

What is a fossa?

Answer 9

Shallow, basinlike depression in bone, often serving as an articular surface

Question 10

What are five bone markings in the temporal bone?

Answer 10

1. External accoustic meatus
2. Styloid process
3. Zygomatic process
4. Jugular foramen
5. Carotid canal

Question 11

What is the canal that leads to the eardrum and middle ear called?

Answer 11

External acoustic meatus

Question 12

What is the sharp needlelike projection just inferior to the external acoustic meatus called? (It is the attach,ent point for many neck muscles)

Answer 12

Styloid process

Question 13

What is the zygomatic process?

Answer 13

A thin ridge of bone that joins with the cheek bone

Question 14

What is the bone marking at the junction of the occipital and temporal bone that allows passage of the jugular vein called?

Answer 14

Jugular foramenn

Question 15

What is the bone marking that allows passage of the carotid artery called?

Answer 15

Carotid canal

Question 16

What are teo bone markings in the occipitsl bone?

Answer 16

1. Foramen magnum
2. Occipital condyles

Question 17

What is the bone marking that allows the spinal cord to connect with the brain called?

Answer 17

Foramen magnum

Question 18

What bone marking in the sphenoid bone forms a snug enclosure formthe pituitary gland.?

Answer 18

Sella turcica

Question 19

What are three bone markings in the maxillae?

Answer 19

1. Alveolar process
2. Paranasal sinuses
3. Palatine processes

Question 20

What bone marking holds the teeth?

Answer 20

Alveolar process

Question 21

What bone marking forms the anterior part of the hard palate of the mouth?

Answer 21

Palatine process

Question 22

What three things does do the paranasal sinuses do?

Answer 22

1. Surround the nasal cavity
2. Lighten the skull bones
3. Amplify the sounds we make as we speak

Question 23

What are two bone markings in the mandible?

Answer 23

1. Alveolar process
2. Mandibular body

Question 24

What bone markong i the mandible allows blood vessels and nerves to pass?

Answer 24

Mandibular body

Question 25

What is the only bone in the body that is not articulated with a joint?

Answer 25

Hyoid bone

Question 26

Where is the hyoid bone located?

Answer 26

In the neck about 2 cm above the larynx

Question 27

How is the hyoid bone anchored?

Answer 27

By ligaments to the styloid processes of the temporal bones

Question 28

What is the function of the hyoid bone?

Answer 28

1. It serves as a movable base for the tongue
2. Attachment point for neck muscles that raise and lower the larynx when we speak or swallow

Question 29

What is the shape of the hyoid bone?

Answer 29

Horseshoe-shaped with a body and two horns