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Anatomy > Misc 4 > Flashcards

Misc 4 Flashcards

1
Q

Gingiva has …… rete pegs than the alveolar mucosa

A

higher (more interdigitation)

  • Note: Gingiva contains collagen fibers, while alveolar mucosa has collagen, elastin & blood vessels
  • Attached gingiva has no rete pegs
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2
Q

Metopic suture refers to ……

A

frontal suture (between the two frontals)

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3
Q

The free gingival groove is …..

A

the groove separating the free from the attached gingiva

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4
Q

The blood vessel with greatest smooth muscle thickness relative to its size is …….

A

arterioles

* Even more than Large arteries

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5
Q

In the developing embryo, two laminae arises which separate the lip from the palate, which are ………

A

vestibular lamina & dental lamina

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6
Q

Palatine tonsils & pharyngeal tonsils have afferent lymph vessels. T/F?

A

False

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7
Q

Lateral cleft of the upper lip is due to …..

A

failure in fusion of maxillary and medial nasal processes.

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8
Q

Most of the efferent & afferent fibers from the cerebral cortex traverse …….

A

the internal capsule

* Note that: The cerebral peduncles (Rt. & Lt.) make up the midbrain

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9
Q

Atlanto-occipital joint allows …….

A

flexion & extension (nodding)

* It is a synovial joint

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10
Q

The matrix secreted by the odontoblasts is …….

A

aminoacid with collagen fibers

* Not sure of this though

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11
Q

The superior alveolar nerves supply …….

A

the maxillary sinus, the max. gingiva & teeth

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12
Q

The reason elastin is more elastic than collagen is …….

A

it lack hydroxylysin

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13
Q

Shivering is ……

A

mechanism for heat production. Mediated by the hypothalamus

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14
Q

Salivary glands of the hard palate is located in …..

A

posterolateral zone

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15
Q

Myopia means the eyeball is ……, while hyperopia means ………

A

long (tx is concave lens)

short (tx is convex lens)

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16
Q

Skin water resistance is due to the presence of …….

A

keratin

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17
Q

Facial cleft occurs if ………. don’t fuse

A

maxillary prominence & lateral nasal process don’t fuse

* They form the nasolacrimal duct

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18
Q

The vertical part of the palatine bone forms ……..

A

part of the lateral nasal cavity wall

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19
Q

The laryngeal cartilage that extends between the arytenoid cartilage & the epiglottis is ……..

A

the cuneiform cartilage

  • All three paired cartilage are hyaline
  • Corniculate cartilage articulate with the arytenoid
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20
Q

In the bone, calcified ground substance add ……., while tensile strength depends primarily on ……

A

compressive strength

collagenous fibrils of matrix

21
Q

The hepatic veins drain the liver to the ……..

A

IVC

22
Q

Lamina papyracea is a part of ………. of the orbit

A

medial wall (thin part of ethmoid bone)

  • Roof: frontal, lesser wing
  • Lateral: zygoma, frontal, greater wing
  • Medial: maxilla, frontal, lacrimal, ethmoid
  • floor: maxilla, zygoma, palatine bone
23
Q

The lateral ventricles are surrounded laterally & inferiorly by ……..

A

caudate nucleus

* It is

24
Q

The retropharyngeal space is bounded laterally by ……..

A

the carotid sheath

25
Q

An area of loose CT beneath GIT epithelium is ……

A

lamina propria

* Note: submucosa is dense CT

26
Q

The left recurrent laryngeal N is closely related at its beginning to …….

A

ligamentum arteriosum and the arch of the aorta

27
Q

Axillary lymph nodes drain ……

A

upper limb, upper lateral part of the breast, and superficial abdominal lymph vessels above the umbilicus
* There is: Anterior (pectoral), posterior, lateral (for upper limb), and central (receives from all 3)

28
Q

Both dental arches drain into …… lymph node

A

submandibular (except lower incisors into sublingual)

* All ultimately drain into the deep cervical node

29
Q

The origin of the middle pharyngeal constrictor is ……, and the inferior is ……..

A

hyoid bone
thyroid cartilage
* Both insert into the median raphe

30
Q

The muscle responsible for elevating the upper lip is …….

A

levator labii

* origin is maxilla

31
Q

Muscles of the tongue which are connected to the hyoid bone are ………

A

hyoglossus & genioglossus

32
Q

The three branches of the trigeminal N pass through foramen in ……..

A

sphenoid bone

* Note that: ovale & rotundum are in the greater wing

33
Q

Tropocollagen is found in ………

A

collagen & reticular fibers only

* Elastic fibers are not included. They contain elastin, desmosin & isodesmosin

34
Q

The cricoid cartilage is attached to the trachea by ……

A

external ligaments

  • Thyroid cartilage to hyoid bone by external ligament also
  • All nine cartilages of larynx together by intrinsic ligaments
  • The annular ligaments attach each tracheal cartilage to neighboring cartilages
35
Q

Blood from branches of the portal vein and hepatic artery enters ……

A

the liver sinusoids at the periphery of the liver lobule, and passes centripetally to reach the central vein

36
Q

The ECA extends from ………

A

the upper border of the thyroid cartilage to the back of the neck of the mandible where it ends by dividing into the superficial temporal and maxillary artery
* The superior thyroid A originates just below the level of greater cornu

37
Q

Barr body is used to ……..

A

determine the sex. Found in female cells only

* During interphase, one X chromosome remains condensed as a dark staining body

38
Q

Osteoid differs from bone in …….

A

bone is calcified

* Note: the number of lacunae is the same in both

39
Q

The muscle that retracts the tongue is ……..

A

hyoglossus

40
Q

The principal extensor of the forearm is …….

A

the triceps brachii

41
Q

The nerve most likely to become injured in fractures of the mid-humeral shaft is …….

A

radial nerve

* travels in the radial (spiral) groove on the posterior aspect of the midhumeral shaft

42
Q

General sensation of Cn IX have their cell bodies in …….

A

superior & inferior nuclei of Cn IX

* Not in spinal nucleus

43
Q

During inspiration phase the following events occur

A

The diaphragm moves downwards, the ribs are raised superiorly, the suprapleural membrane remains fixed, and the tone of the muscles of the anterior abdominal wall is decreased.
* The sternum moves anteriorly

44
Q

The isthmus of the thyroid gland contacts ……… posteriorly

A

trachea

45
Q

The deep cervical fascia surrounding the thyroid gland. It becomes two layers posteriorly and contains branches of …….

A

inf. thyroid A & recurrent laryngeal N (They contact the gland directly)

46
Q

The middle mediastinum contains …..

A

the heart, recurrent laryngeal N, arch of aorta & phreic N

47
Q

The epithelium well adapted for secretory or absorptive functions is …..

A

simple columnar

48
Q

Peyer’s patches and pharyngeal tonsils are …….

A

subepithelial & non encapsulated

* Peyer’s is in the lamina propria, especially ilium

Anatomy (10 decks)

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