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Digestive System > Anatomy and Histology of Digestive System > Flashcards

Anatomy and Histology of Digestive System Flashcards

1
Q

digestive system consists of the _______ or gastrointestinal or GI tract

A

Digestive Tract

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2
Q

four tunics of the digestive tract

A

mucosa, submucosa, muscularis, serosa

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3
Q

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

A

Mucosa

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4
Q

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

A

Submucosa

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5
Q

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

A

Plexus

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6
Q

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

A

Muscularis

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7
Q

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

A

Enteric Nervous System

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8
Q

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

A

Serosa or Adventitia

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9
Q

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

A

Serosa

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10
Q

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

A

Adventitia

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11
Q

the serous membrane that covers the abdominal organs

A

Visceral Peritoneum or Serosa

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12
Q

the serous membrane that lines the wall of the abdominal cavity

A

Parietal Peritoneum

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13
Q

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

A

Mesenteries

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14
Q

the mesentery associated with the small intestine

A

Mesentery Proper

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15
Q

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

A

Lesser Omentum

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16
Q

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

A

Greater Omentum

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17
Q

cavity created by the looping of the greater omentum

A

Omental Bursa

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18
Q

other abdominal organs that have no mesenteries are referred to _____

A

Retroperitoneal

19
Q

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

A

Oral Cavity

20
Q

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

A

Lips

21
Q

the muscle that mostly makes the lips

A

Obicularis Oris Muscle

22
Q

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

A

Buccinator Muscles

23
Q

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

A

Mastication

24
Q

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

A

Tongue

25
Q

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

A

Frenulum

26
Q

how many teeth are there in adults

A

32

27
Q

the four quadrants of he teeth

A

Right Upper, Right Lower, Left Upper, Left Lower

28
Q

adults have one central and one lateral of this tooth

A

Incisor

29
Q

adults have one type of this tooth per quadrant

A

Canine

30
Q

how many premolars per quadrant of teeth

A

2

31
Q

how many molars per quadrant of teeth

A

3

32
Q

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

A

Wisdom Teeth

33
Q

the teeth of adults are called _______

A

Permanent Teeth or Secondary Teeth

34
Q

how many deciduous teeth are there

A

20

35
Q

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

A

Primary Teeth or Deciduous Teeth

36
Q

the three regions of the tooth

A

Crown with one or more cusp, Neck, and Root

37
Q

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

A

Neck

38
Q

the visible portion of the teeth

A

Crown

39
Q

the largest region of the tooth and it anchors the bone

A

Root

40
Q

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

A

Pulp Cavity

41
Q

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

A

Pulp

42
Q

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

A

Dentin

43
Q

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

A

Enamel

Digestive System (2 decks)

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