Anatomy and Histology of Digestive System

Question 1

digestive system consists of the _______ or gastrointestinal or GI tract

Answer 1

Digestive Tract

Question 2

four tunics of the digestive tract

Answer 2

mucosa, submucosa, muscularis, serosa

Question 3

innermost tunic; consists of inner mucous epithelium and loos connective tissue of lamina prorpia and thin outer layer of smooth muscle of muscularis mucosae

Answer 3

Mucosa

Question 4

just outside the mucosa; thick layer of loose connective tissue containing nerves, blood vessels, and small glands

Answer 4

Submucosa

Question 5

an extensive network of nerve cell processes within a submucosa forms a _______ within the submucosa

Answer 5

Plexus

Question 6

consists of inner layer circular smooth muscle and outer layer longitudinal smooth muscle. another plexus lies within the center of the two muscle layers

Answer 6

Muscularis

Question 7

together, the nerve plexuses of the submucosa and muscularis compose the

Answer 7

Enteric Nervous System

Question 8

fourth, outermost layer of the digestive tract is either _____ or _____

Answer 8

Serosa or Adventitia

Question 9

consists of the peritoneum, which is a smooth epithelial layer, and its underlying connective tissue

Answer 9

Serosa

Question 10

regions of the digestive tract not covered by the peritoneum are covered by this connective tissue layer

Answer 10

Adventitia

Question 11

the serous membrane that covers the abdominal organs

Answer 11

Visceral Peritoneum or Serosa

Question 12

the serous membrane that lines the wall of the abdominal cavity

Answer 12

Parietal Peritoneum

Question 13

most of the organs of the abdominal cavity are held in place by connective tissue sheets called _____. it also provide a route for blood vessels and nerves from the abdominal walls to the organs

Answer 13

Mesenteries

Question 14

the mesentery associated with the small intestine

Answer 14

Mesentery Proper

Question 15

the mesentery connecting the lesser curvature of the stomach to the liver and diaphragm

Answer 15

Lesser Omentum

Question 16

the mesentery connecting the greater curvature of the stomach to the transverse colon and posterior body wall

Answer 16

Greater Omentum

Question 17

cavity created by the looping of the greater omentum

Answer 17

Omental Bursa

Question 18

other abdominal organs that have no mesenteries are referred to _____

Answer 18

Retroperitoneal

Question 19

the first part of the digestive tract. it is bounded by the lips and cheeks and contains the teeth and tongue

Answer 19

Oral Cavity

Question 20

are muscular structure formed mostly by the obicularis oris muscle. its outer surfaces are covered by skin

Answer 20

Lips

Question 21

the muscle that mostly makes the lips

Answer 21

Obicularis Oris Muscle

Question 22

it is located within the cheeks and it flattens the cheeks against the teeth

Answer 22

Buccinator Muscles

Question 23

the lips and cheeks are important in this process. it begins the process of mechanical digestion, which breaks down large food into smaller ones

Answer 23

Mastication

Question 24

a large, muscular organs that occupies most of the oral cavity. its major attachment is on the posterior part of the oral cavity

Answer 24

Tongue

Question 25

a thin fold of tissue that attaches the tongue to the floor of the mouth

Answer 25

Frenulum

Question 26

how many teeth are there in adults

Answer 26

32

Question 27

the four quadrants of he teeth

Answer 27

Right Upper, Right Lower, Left Upper, Left Lower

Question 28

adults have one central and one lateral of this tooth

Answer 28

Incisor

Question 29

adults have one type of this tooth per quadrant

Answer 29

Canine

Question 30

how many premolars per quadrant of teeth

Answer 30

2

Question 31

how many molars per quadrant of teeth

Answer 31

3

Question 32

the third molars are usually called _____ because they grow when a human seems to have already gained enough knowledge accompanied by maturity

Answer 32

Wisdom Teeth

Question 33

the teeth of adults are called _______

Answer 33

Permanent Teeth or Secondary Teeth

Question 34

how many deciduous teeth are there

Answer 34

20

Question 35

also called milk teeth or baby teeth, which are lost during childhood

Answer 35

Primary Teeth or Deciduous Teeth

Question 36

the three regions of the tooth

Answer 36

Crown with one or more cusp, Neck, and Root

Question 37

this is the small region between the crown and the root of a tooth

Answer 37

Neck

Question 38

the visible portion of the teeth

Answer 38

Crown

Question 39

the largest region of the tooth and it anchors the bone

Answer 39

Root

Question 40

within the center of the tooth; filled with blood vessels, nerves, and connective tissue called pulp

Answer 40

Pulp Cavity

Question 41

blood vessels, nerves, and connective tissue part that makes us the pulp cavity

Answer 41

Pulp

Question 42

the pulp cavity is surrounded by a living, cellular, calcified tissue called _____

Answer 42

Dentin

Question 43

the dentin of the crown is covered by an extremely hard acellular substance called

Answer 43

Enamel