MDS PREP
Tongue is protruded by which of the following muscle
1. Hyoglossus
2. Palatoglossus
3. Myelohyoid
4. Genioglossus
Anatomy
Answer: 4
Tongue is protruded by Genioglossus
STERNOCLEIDOMASTOID IS NOT SUPPLIED BY?
1. SUPERIOR THYROID A.
2.THYROCERVICAL TRUNK
3. OCCIPITAL A
4. POST AURICULAR A
Anatomy
Answer: 2
The occipital artery does not supply the lower third of the sternocleidomastoid (SCM) muscle:<br> Upper third: Supplied by the occipital artery <br>Middle third: Supplied by the superior thyroid artery and the external carotid artery <br>Lower third: Supplied by the suprascapular artery, the transverse cervical artery, the thyrocervical trunk, and the superficial cervical artery<br>
Primary teeth begin to calcify between the ________ and ________months in
utero.
1) first; second
2) second; fourth
3) fourth; sixth
4) sixth; eighth
The primary teeth begin to form in utero at about six weeks. Hard tissue
formation occurs in all primary teeth by the 18th week in utero. 3. The
permanent teeth begin to develop at approximately four months of age in utero.
Maxillary and mandibular first molars begin to calcify at birth.
The tendon of anterior belly digastric passes between the tendon ends of:
1. Styloglossus muscle
2. Stylohyoid muscle
3. Hyoglossus muscle
4. Posterior belly of digastric
Anatomy
Answer: 2
The tendon of anterior belly digastric passes between the tendon ends of Stylohyoid muscle
The medial pterygoid muscle is attached to the
1. lateral surface of lateral pterygoid plate
2. lateral surface of greater wing of sphenoid
3. medial surface of lateral pterygoid plate
4. medial surface of medial pterygoid plate
Anatomy
Answer: 3
The medial pterygoid muscle is attached to the medial surface of lateral pterygoid plate
In an average child the mixed dentition period is from
1. 10 years to 25 years
2. 4 yrs to 12 yrs
3. 8 yrs to 17 yrs
4. 6 yrs to 13 years
Dental Anatomy
Answer: 4
In an average child the mixed dentition period is from 6 yrs to 13 y
Foramen ovale is placed _____ to foramen rotundum:
1. Anteromedian.
2. Anterolateral.
3. Posteromedian.
4. Posterolateral
Anatomy Answer: 4
the foramen ovale and foramen rotundum are both openings in the sphenoid bone. The foramen ovale is located posterior and lateral to the foramen rotundum. The foramen rotundum transmits the maxillary nerve (V2), while the foramen ovale transmits the mandibular nerve (V3) and the accessory meningeal artery.
A wound to the posterior left axillary line, between the ninth and tenth rib, and extending approximately 5 cm deep, will most likely damage which organ?
1) Ascending colon
2) Duodenum
3) Left kidney
4) Spleen
Anatomy
Answer: 4
The spleen follows the long axes of ribs 9 to 11 and lies mostly posterior to the stomach, above the colon, and partly anterior to the kidney. It is attached to the stomach by a broad mesenterial band, the gastrosplemic ligament. Therefore, it is the most likely organ of the group to be pierced by a sharp object penetrating just above rib 10 at the posterior axillary line. Note that the pleural cavity, and possibly the lower part of the inferior lobe of the lung, would be pierced before the spleen. The ascending colon (choice 1) is on the wrong side (the right) to be penetrated by a sharp instrument piercing the left side.
Most of the duodenum (choice 2) is positioned too far to the right to be affected by this injury.
Even the third part of the duodenum, which runs from right to left, would still be out of harm's way. In addition, the duodenum lies at about levels L1 to L3, placing it too low to be injured in this case.
The superior pole of the left kidney (choice 3) is bordered by the lower part of the spleen. However, it is crossed by rib 12 and usually does not extend above rib 11. It would probably be too low and medial to be injured in this case because this penetration is at the posterior axillary line.