Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

314 Exam 3 > Upper Alimentary Canal > Flashcards

Upper Alimentary Canal Flashcards

1
Q

the mouth is also known as the

A

oral or buccal cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

the mouth is bounded by

A

the cheeks, lips, palate, and tongue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

the mouth is the only location for

A

ingestion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

digestion begins in the

A

mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

tongue initiates

A

swallowing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

the cheeks form

A

the lateral walls of the mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

the cheeks consist of

A

skin, subcutaneous fate, muscles, and an inner lining of stratified squamous epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

the lips (labia) are

A

highly sensative, highly mobile fleshly folds that surround the opening to the oral cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

inner surface of each lip is attached to gum by

A

labial frenulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

vestibule is present between

A

cheeks/lips and gums/teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

the tongue consists of

A

skeletal muscle and stratified squamous epithelium, which contains mucous glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

the tongue is attached to the floor of mouth by

A

lingual frenulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

upper and lateral surfaces of the tongue are covered with

A

numerous papillae

gives it rough texture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

many papillae contain

A

taste buds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

flood or mouth and undersurface of tongue are

A

richly supplied with blood vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

soluble drugs get absorbed

A

very quickly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

the palate separates

A

the oral cavity from the nasal cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

anterior portion of palate is

A

hard (bony) palate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

posterior portion of palate is

A

soft palate primarily of skeletal muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

behind soft palate is

A

uvula which closes nasopharynx during swallowing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

on either side of the uvula is

A

a paire of palatine tonsils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

teeth

A

are the primary structures of mechanical digestion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

adults have _____ permanent teeth

A

32

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

____ chisel like incisors for _______

A

8 for biting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

___ pointed canines for _____

A

4 for tearing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

___ broad pre-molars (bicsupids)

A

8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

___ broad molars for ______

A

12 for crushing/grinding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

the first set of 20 deciduous teeth erupt through gums between

A

six months and 2 years of age and get replaced between 6 and 17

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

each tooth is embedded in

A

a bony alveolus in the mandible or one of the maxillae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

each alveolus is lined with

A

a periodontal ligament that anchors tooth in place

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

alveolar processes are covered by

A

gingivae (gums)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

each tooth consists of a

A

crown above gum level
one to three roots embedded in the alveolar bone
a narrow neck where the crown and the root meet the gum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

teeth consists mainly of

A

calcified connective tissue called dentin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

dentin in crown and neck is covered by

A

enamel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

enamel is

A

hardest substance in body (non-cellular secretion) are protects against wear and tear of chewing

36
Q

dentin in root is covered by

A

bone-like cementum

37
Q

each tooth has a central pulp cavity inside its

A

crown

38
Q

each tooth has a root canal within each

A

root

39
Q

pulp contains

A

blood vessels, nerves, and lymphatic vessels

40
Q

blood vessels, lymphatic vessles, and nerves enter root canal through

A

apical foramen

41
Q

a salivary gland is

A

any cell or organ that releases saliva into the oral cavity

42
Q

intrinsic salivary glands can be found in

A

tongue, on inside of lips, on inside of cheeks which secrete relatively small amounts of saliva at a constant rate

43
Q

extrinsic salivary glands are located

A

beyond oral mucosa and empty saliva into ducts

44
Q

the are _____ pairs of extrinsic salivary glands

A

3

45
Q

parotid glands are located

A

near ears, open into oral cavity by way of ducts near upper molars

46
Q

submandibular glands are located

A

along the mandible; open into oral cavity via ducts near incisors

47
Q

sublingual glands are located

A

in floor of mouth; open into oral cavity by way of ducts below tongue

48
Q

extrinsic salivary glands secrete between

A

1.0 and 1.5 liters of saliva each day

49
Q

salivation is controlled by

A

autonomic nervous system

50
Q

parasymphathetic signals respond to

A

sight or aroma or taste of food and stimulates salivary glands to produce thin saliva rich in digestive enzymes

51
Q

sympathetic signals respond to

A

stress and stimulate salivary glands to produce thick saliva with more mucus which makes mouth feel dry and sticky

52
Q

saliva is mostly and does….

A

water and solutes and it moistens the mouth, digests some starch and lipids, cleanses teeth, inhibits bacterial growth, dissolves chemicals so they can stimulate the taste buds, and binds food particles together

53
Q

salivary amylase and lingual lipase are

A

digestive enzymes present in saliva

54
Q

salivary amylase digests

A

starch at neutral pH

55
Q

lingual lipase digests

A

fats after it gets activated by stomach acids

56
Q

lysozyme kills

A

bacteria (enzyme)

57
Q

immunoglobin A inhibits

A

bacterial growth

58
Q

mucus binds

A

food particles together and aids in swallowing

59
Q

elctrolytes buffer

A

acidic foods that we ingest

60
Q

ingesting food into the mouth triggers

A

an involunatary chewing response

61
Q

tongue and other muscles manipulate

A

food and push it between teeth

62
Q

masseter and temporalis muscles activate

A

jaws to start mastication

63
Q

mastication

A

grinds food into pieces and mixes it with saliva to form a soft, flexible bolus which inititiates swallowing

64
Q

some chemical digestion is initiated in ______, but

A

mouth, but very little absorption occurs

65
Q

salivary amylase breaks

A

starch into maltose (disaccharide)

66
Q

lingual lipase will eventually break

A

triglycerides into fatty acids and monoglycerides, after it has been activated in stomach

67
Q

the pharynx is

A

a funnel shaped tube extending from the internal nares to the esophagus

68
Q

the pharynx is composed of

A

skeletal muscle and lined with mucous membranes

69
Q

swallowing (deglutination) is

A

a mechanism that moves food from the mouth to the stomach

70
Q

swallowing is coordinated by

A

a swallowing center in the medulla oblongata and pons, which requires 22 separate muscle groups to work together

71
Q

during voluntary buccal phase, tongue

A

pushes bolus of food into oropharynx

72
Q

bolus of food in oropharynx triggers

A

involuntary pharyngeal phase

73
Q

during pharyngeal phase

A

soft palate and uvula close off nasopharynx and epiglottis closes off the glottis so bolus of food can only enter esophagus

74
Q

the esophagus is

A

a muscular, collapsable tube that lies posterior to the trachea

75
Q

mucosa in esophagus contains

A

non-keratinized stratified squamous epithelium to protect esophagus from abrasion caused by swallowing food particles

76
Q

submucosa of esophagus contains

A

esophageal glands that secrete lubricating mucus

77
Q

superior end of muscularis is

A

skeletal muscles

78
Q

inferior end of muscularis is

A

smooth muscle

79
Q

__________ attaches esophagus to surrounding structures of connective tissue

A

adventitia

80
Q

a bolus of food enters the esophagus through the

A

upper esophageal sphincter

81
Q

during esophageal phase of swallowing

A

peristalsis pushes bolus of food through esophagus toward stomach

82
Q

belching is created by

A

relaxing upper esophageal sphincter

83
Q

the bolus of food enters the stomach through the

A

lower esophageal sphincter

84
Q

if the lower esophageal sphincter fails to close,

A

stomach contects can enter lower esophagus

85
Q

acidity of gastric secretions in lower esophagus may

A

irritate the wall of esophagus and cause heartburn

314 Exam 3 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions