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A&P 2 CHAP 26 & 27 > ORAL & THROAT > Flashcards

ORAL & THROAT Flashcards

1
Q

Function of salivary amylase.

A

ENZYME THAT INITIATES CHEMICAL DIGESTION

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2
Q

Frenulum:

A

CONNECTS LIPS TO GUMS (OR ORAL CAVITY FOR INFERIOR)

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3
Q

Vestibule:

A

SPACE BETWEEN GUMS, LIPS, & TEETH

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4
Q

Uvula:

A

PROJECTION OF SOFT PALATE

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5
Q

Know the locations of the salivary glands.

A

INTRINSIC: BUCCAL, LINGUAL, LIPS. EXTRINSIC: PAROTID, SUBLINGUAL, & SUBMANDIBULAR

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6
Q

Dentin:

A

FORMS PRIMARY MASS

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7
Q

Enamel:

A

FORMS CROWN

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8
Q

Pulp cavity:

A

CONTAINS CT; IN CENTER OF TOOTH

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9
Q

Dental alveoli:

A

SOCKETS THAT HOLD TEETH

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10
Q

Deciduous teeth vs permanent teeth – how many?

A

DECIDUOUS: 20. PERMANENT: 32

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11
Q

Describe the location of the esophagus.

A

PROJECTS INFERIORLY THRU THORAX & THRU ESOPHAGEAL HIATUS AND DIAPHRAGM

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12
Q

What epithelium type is in the esophagus (differs from the rest of the GI tract)?

A

NONKERATINIZED STRATIFIED SQUAMOUS

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13
Q

What is the esophageal hiatus?

A

WHERE ESOPHAGUS PASSES THRU DIAPHRAGM & CONNECTS TO STOMACH

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14
Q

Voluntary phase of swallowing:

A

BOLUS IS PUSHED BY TONGUE AGAINST HARD PALATE, THEN MOVED TOWARD OROPHARYNX.

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15
Q

Involuntary phases of swallowing:

A

pharyngeal & esophageal phases

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16
Q

pharyngeal phase:

A

BOLUS IS IN OROPHARYNX; SOFT PALATE & UVULA CLOSE OFF NASOPHARYNX, & LARYNX ELEVATES SO EPIGLOTTIS

17
Q

Esophageal phase:

A

BOLUS PASSES INTO STOMACH W/PERISTALTIC CONTRACTIONS

18
Q

Where is the bolus being sent to? Start from beginning.

A

Oral cavity, pharynx, esophagus, & stomach

19
Q

What happens to the bolus in each location?

A

ORAL CAVITY: MECHANICAL DIGESTION FROM CHEWING; CHEMICAL DIGESTION FROM SALIVARY AMYLASE. PHARYNX: SWALLOWS BOLUS. ESOPHAGUS: TRANSPORTS BOLUS FROM PHARYNX TO STOMACH. STOMACH: MIXES BOLUS W/GASTRIC SECRETIONS (NOW CHYME) W/HELP OF SMOOTH MUSCLE CONTRACTIONS.

A&P 2 CHAP 26 & 27 (5 decks)

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