A&P - Chapter 38 (Part 2)

Question 1

What are the lateral wall muscles of the cheeks made from?

Answer 1

Buccinator muscle

Question 2

What does the buccinator muscle contain?

Answer 2

Mucous-secreting glands

Question 3

What are the anterior walls formed by?

Answer 3

The lips

Question 4

Oral fissuer

Answer 4

Line of contact between closed lips

Question 5

What is the function of the salivary glands?

Answer 5

Secretes saliva

Question 6

How much saliva is secreted each day?

Answer 6

1 L

Question 7

What are the 2 components of saliva?

Answer 7

1. Salivary amylase

2. Mucus

Question 8

What are the salivary glands made up of? (3)

Answer 8

1. Parotid glands
   - largest
2. Submandibular glands
   - below mandible
3. Sublingual glands
   - below tongue

Question 9

Where is the parotid gland located?

Answer 9

Bottom of the ear at the jaw angle

Question 10

What are the parotid glands?

Answer 10

They are ducts that secrete into the mouth cavity

Question 11

What do parotid glands do?

Answer 11

Produce watery saliva containing enzymes

Question 12

Where is the submandibular glands?

Answer 12

In the middle of the mandible

Question 13

What are the submandibular glands?

Answer 13

They are ducts that secrete on either side of lingual frenulum

Question 14

What do the submandibular glands contain?

Answer 14

Enzyme and mucous producing substances

Question 15

Where are the sublingual glands located?

Answer 15

Anterior to submandibular glands

Question 16

What are the sublingual glands?

Answer 16

They are ducts that secrete into the floor of the mouth

Question 17

What is the function of the sublingual glands?

Answer 17

They produce a mucus type of saliva

Question 18

What are the 3 sections of a typical tooth?

Answer 18

1. Crown
2. Neck
3. Root

Question 19

What is the crown of the tooth covered by?

Answer 19

Enamel

Question 20

Enamel

Answer 20

Hardest tissue in the body, which is perfect for withstanding the abrasion of chewing food

Question 21

Where is the pulp cavity?

Answer 21

In the centre of the tooth

Question 22

What does the pulp cavity contain? (3)

Answer 22

1. Connective tissue
2. Blood and lymphatic vessels
3. Sensory nerves

Question 23

What does the neck of the tooth do?

Answer 23

Joins the crown to the root

Question 24

What is the neck of the tooth surrounded by?

Answer 24

Pink tissue

Question 25

What is pink tissue also called?

Answer 25

Gingival tissue

- gums

Question 26

Where does the root of the tooth fit?

Answer 26

In the socket/jaw bone

Question 27

What is the socket that fits the tooth lined with?

Answer 27

Periodontal membrane

Question 28

What does periodontal membrane do?

Answer 28

Anchors the tooth to the bone

Question 29

Deciduous teeth

Answer 29

Baby teeth

Question 30

How many deciduous teeth do we have?

Answer 30

20 teeth

Question 31

What is the average of for the first eruption as a child?

Answer 31

6 months

- 8 incisors are cut first

Question 32

When do you get your complete set of baby teeth?

Answer 32

2 years of age

Question 33

What do baby teeth not have?

Answer 33

Premolars

• 2 pairs of molars per jaw
• lost between 6 – 13 years of age

Question 34

What are permanent teeth known as?

Answer 34

Adult teeth

Question 35

How many adult teeth do you have?

Answer 35

32

Question 36

What is the average age of the first eruption as an adult?

Answer 36

6 years

Question 37

When do you get a complete set of 32 teeth?

Answer 37

Age 17-24 years of age