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Anatomy 3 oral > C3 - Tongue, blood supply and innervation > Flashcards

C3 - Tongue, blood supply and innervation Flashcards

1
Q

Structures to mention on the tongue

A
  • Corpus linguae
  • Radix linguae (Caudal to papillae vallatae, → hyoid bone)
    • Tonsilla lingualis (Bo, eq) (lymphatic follicles)
    • Papilla tonsillaris (su)
  • Apex linguae
  • Dorsum linguae (Dorsal part of the tongue)
  • Torus linguae (Ru) (Prominence of the dorsum caudal to the fossa linguae)
  • Fossa linguae (bo) (Deep pit on the dorsum linguae)
  • Facies ventralis linguae
  • Frenulum linguae (Ventral median fold that attaches the tongue to the floor of the mouth, sus, bo: doubled)
  • Papillae linguales (Covers the dorsal surface)
    • Papillae filiformes
    • Papillae conicae
    • Papillae fungiformes (Have tastebuds)
    • Papillae lentiformes (Ru) (Mechanical)
    • Papillae vallatae (Have tastebuds)
    • Papillae foliatae (ø ru?) (Have tastebuds)
    • Papillae marginales (car, sus) (Present in newborns)
  • Sulcus medianus linguae (Median dorsal groove)
  • Septum linguae
  • Lyssa (ca) (It continues caudally between mm. genioglossi by a cord)
  • Cartilago dorsi linguae (eq)

Musculi linguae:

  • M. genioglossus
  • M. hyoglossus
  • M. styloglossus
  • M. lingualis proprius
    • Fibrae longitudinales superficiales
    • Fibrae longitudinales profundae (eq)
    • Fibrae transversae
    • Fibrae perpendiculares
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2
Q

Give the interspecies differences of the tongue

A
  • Lyssa (car)
  • Sulcus medianus (eq, car)
  • Torus linguae (ru)
  • Fossa linguae (bo)
  • Cartilago dorsi linguae (eq)
  • Papilla lentiformis (ru)
  • Papilla foliatae (ø ru)
  • Papilla marginalis (car, su) (newborns)
  • Radix lingua
    • Tonsilla lingualis (Bo, eq)
    • Papilla tonsillaris (su)
  • Fibrae longitudinalis profundae (eq) (intrinsic muscles of the tongue)
  • Number of circum vallate papillae:
    • ​Eq, su: 1 pair
    • Ox: 8-17 pair
    • Car: 2-3 pair
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3
Q

Where does the radix linguae attach

A

Hyoid bone

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4
Q

List the papilla of the tongue

A
  • Mechanical:
    • Papillae filiformis
      • ​Covers dorsum linguae
      • Car, su: covers radix linguae
    • Papillae conicae
    • Papillae lentiformis (ru)
  • Gustatory:
    • Papilla fungiformis
      • ​On dorsum linguae
      • On lateral and ventral surface of the tongue
    • Papillae foliata (ø ru)
      • On the borders of the tongue
    • Papillae vallata
      • ​On dorsum linguae
      • Su, eq: one pair
      • Car: 2-3 papillae on each side
      • Ox: 8-17 papillae
  • Papilla marginalis (newborn car, su)
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5
Q

Give the main divisions of the tongue

A
  • Dorsum linguae
  • Apex linguae
  • Corpus linguae (between apex and radix)
  • Radix linguae
  • Maro linguae (margin of the tongue)
  • Frenulum linguae
  • Ductus thyroglossus
  • Septum linguae
  • Aponeurosis linguae
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6
Q

Dorsum linguae

A
  • Surface opposite the palate
  • Torus linguae (ru)
  • Fossa linguae (ru)
  • Cartilage dorsi linguae (eq)
  • Sulcus medianus linguae
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7
Q

Apex linguae

A
  • Free rostral portion
  • Tip
  • Presents dorsal and ventral surface
    • Ventral surface: connected to the floor of the oral cavity by frenulum linguae (median flod)
  • Lyssa (car)
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8
Q

Radix linguae

A
  • Caudal part of papilla vallata
  • Slopes caudally towards the base of epiglottis
  • Tonsilla lingualis (eq, bo)
    • Lymphoid follicles
    • On the radix
  • Tonsilla lingualis (su)​
    • Conicale papillae
    • Contains lymph nodes
    • On the radix
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9
Q

Frenulum linguae

A
  • Ventral median fold
  • Attaches the tongue to the floor of the mouth
  • Su, bo: doubled
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10
Q

Ductus thyroglossus

A
  • Epithelial tube
  • Evaginates from the radix
  • Gives rise to gl. thyroidea
  • In for. cecum
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11
Q

Septum linguae

A

Sheet of connective tissue in the median plane

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12
Q

Aponeurosis linguae

A
  • Dense layer of connective tissue
  • Covers the musculature
  • Attachment of the muscles
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13
Q

Draw the tongue of:

  1. Bo
  2. Ca
  3. Eq
A
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14
Q
  1. List the muscles of the tongue
  2. Draw the muscles
A

Intrinsic muscles:

  1. ​Fibrae longitudinalis superficialis
  2. Fibrae longitudinalis profunda (eq)
  3. Fibrae transversa
  4. Fibrae perpendicularis

​Extrinsic muscles:

  1. M. styloglossus
  2. M. hyoglossus
  3. M. genioglossus

Other muscles acting on the tongue

  1. M. geniohyoideus
  2. M. mylohyoideus
  3. M. sternohyoideus
  4. M. thyrohyoideus
  5. M. sternothyroideus
  6. M. occipitohyoideus
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15
Q

Extrinsic muscles

M. styloglossus

A
  • Origin: Stylohyoid bone
  • Insertion: Middle of tongue
  • Action: Retract and elevate tongue
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16
Q

Extrinsic muscles

M. hyoglossus

A
  • Origin:
    • ​Thyrohyoid
    • Basihyoid
  • Insertion: Radix linguae
  • Action: Retracts and depress tongue
17
Q

Extrinsic muscles

M. genioglossus

A
  • Origin: Symphysis and adjacent surface of the body of mandibula
  • Insertion: Left and right join at the median plane
  • Action:
    • ​Caudal fibers: protrude tongue
    • Rostral fibers: retract apex
18
Q

Other muscles acting on the tongue

M. geniohyoideus

A
  • Origin: Symphysis mandibularis
  • Insertion: Basihyoid
  • Action Draws the hyoid apparatus and larynx rostrally
19
Q

Other muscles acting on the tongue

M. mylohyoideus

A
  • Origin: Basihyoid caudally
  • Insertion: Midventral raphe, om the muscle from the other side
  • Action: Supports tongue
20
Q

Other muscles acting on the tongue

M. sternohyoideus

A
  • Origin:
    • ​Sternum
    • 1st costal cartilage
  • Insetion: Basihyoid
  • Action: Pull the hyoid bone, radix linguae and larynx caudally
21
Q

Other muscles acting on the tongue

M. thyrohyoideus

A
  • Origin: Cartilago thyroidea
  • Insertion: Thyrohyoid bone
  • Action:?
22
Q

Other muscles acting on the tongue

M. sternothyroideus

A
  • Origin: 1st costal cartilage
  • Insertion: Cartilago thyroidea
  • Action: Draws larynx and tongue caudally
23
Q

Blood supply of the tongue

A
  1. A. lingualis​​
    • Ca, sus: ex a. carotis externa
    • Eq, ru: ex tr. linguofascialis
    • Runs with stylohyoid bone, then enters into linguae: a. profunda linguae
  2. A. sublingualis
    • ​Ca, eq: a. submentalis, ex a. fascialis
    • Ru, sus: ex a. lingualis
  3. V. lingualis from v. linguofascialis (arcus hyoideus)
  4. V. sublingualis
    • ​Ca, sus, ru: ex v. ingualis
    • Eq: ex v. fascialis
24
Q

Innervation of the tongue

A
  • 5 pairs of cranial nerves:
    • N. mandibularis ex n. trigemini (V)
    • N. fascialis (VII)
    • N. glossopharyngeus (IX)
    • N. vagus (X)
    • N. hypoglossus (XII) (only motor nerve of the tongue)
  • The other nerves (ø n. hypoglossus) are:
    • Sensory
      • Tactile
      • Pain
      • Gustatory
      • Temperature

Anatomy 3 oral (122 decks)

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