SYSTEMATIC ANATOMY: DIGESTIVE SYSTEM

1 anatomy 25 review Questions: DIGESTIVE 1of 8 SYSTEMATIC anatomy : DIGESTIVE SYSTEM1. The skeletal muscle that forms the core of the lips is called the __?__ and the skeletal muscle that forms thecore of the cheeks is called the __?__. (a) orbicularis oculi, orbicularis oris (b) mentalis, buccinator (c)orbicularis oris, buccinator (d) buccinator, masseter (e) buccinator, orbicularis oculi2. The oral cavity is lined with __?__ epithelium. (a) simple cuboidal (b) simple columnar (c) simple squamous(d) stratified squamous keratinized (e) stratified squamous3. The parotid glands __?__. (a) are located over the mandibular rami (b) empty into the oral vestibule oppositethe second upper molars (c) produce saliva (d) can be infected by the "mumps" virus (e) all of these4.

2 The submandibular glands __?__. (a) can be palpated just inside the lower edges of the mandible (b) areseromucous or mixed (c) empty into the floor of the oral cavity on either side of the lingual frenulum (d) all ofthese (e) none of these5. Which structures form ridge-like bulges in the floor of the oral cavity under the tongue ? (a) lingual tonsils (b)submandibular glands (c) palatine tonsils (d) sublingual glands (e) pharyngeal tonsils6. The soft palate __?__. (a) forms the posterior 1/3 of the roof of the oral cavity (b) is covered with respiratorymucosa on its pharyngeal side (c) is covered with stratified squamous epithelium on its oral side (d) contains acore of skeletal muscles (e) all of these7.

3 The uvula __?__. (a) produces sounds (b) is part of the hard palate (c) is a large ruga (d) is an anchoring pointfor soft palate muscles (e) all of these8. The hard palate __?__. (a) forms the anterior 2/3 of the roof of the oral cavity (b) is formed by the palatinebones and the palatine processes of the maxillae (c) is covered with stratified squamous epithelium (d) ismarked, especially in the infant, by ridges called rugae (e) all of these9. The tip of the tongue is called the __?__. (a) corpus (b) dorsum (c) frenulum (d) root (e) apex10. The fold of tissue formed as the oral mucosa leaves the undersuface of the tongue and spreads out over the floorof the oral cavity is called the __?

4 __. (a) lingual tonsil (b) lingual frenulum (c) inferior labial frenulum (d)sulcus terminalis (e) foramen cecum11. Which type of lingual papilla is the most numerous and provides the tongue surface with friction __?__. (a)foliate (b) fungiform (c) circumvallate (d) filiform (e) vallate12. Circumvallate papillae __?__. (a) are located anterior to the sulcus terminalis and foramen cecum (b) haveglands of von Ebner (c) contain taste buds (d) vary in their number (e) all of these13. Taste buds __?__. (a) consist of nerve cells and supporting cells (b) have openings to the oral cavity called tastepores (c) are located throughout the epithelium lining the oral cavity and covering the tongue (d) all of these(e) none of these14.

5 The foramen cecum __?__. (a) marks the embryonic origin of the thyroid gland (b) is located on the dorsum ofthe root of the tongue (c) may be connected to the thyroid gland by a duct or a band of tissue (d) all of these(e) none of these15. The lingual tonsil __?__. (a) is located on the root of the tongue (b) consists of masses of lymphocytes in ameshwork of reticular fibers (c) is covered with epithelium (d) all of these (e) none of these16. On the basis of their names, which of the following is not an extrinsic tongue muscle ? (a) palatoglossus (b)hyoglossus (c) genioglossus (d) geniohyoid (e) styloglossus17.

6 The intrinsic tongue muscles are not arranged __?__. (a) circularly (b) vertically (c) longitudinally (d)transverselyAnatomy 25 review Questions: DIGESTIVE 2of 818. The __?__ muscles alter the shape of the tongue; the __?__ move the entire tongue. (a) intrinsic, extrinsic (b)extrinsic, intrinsic (c) neither of these19. During swallowing or deglutition __?__. (a) the tongue moves up and back (b) the soft palate moves up (c) thelarynx moves up and forward (d) the epiglottis is pressed down and back (e) all of these20. In humans, the normal deciduous dentition consists of a total of __?

7 __ teeth and the normal permanentdentition consists of a total of __?__ teeth. (a) 20, 32 (b) 32, 20 (c) 20, 28 (d) 28, 32 (e) none of these21. Permanent teeth __?__. (a) develop in the maxillae and the mandible (b) develop at the same time that thedeciduous teeth are growing and erupting (c) replace deciduous teeth by eroding their roots (d) all of these (e)none of these22. From deep to superficial, a tooth crown consists of __?__. (a) enamel, dentine, pulp (b) pulp, dentine, enamel(c) cementum, dentine, enamel (d) pulp, dentine, cementum (e) pulp, cementum, dentine23. The pulp cavity of a tooth __?

8 __. (a) is located primarily in the crown (b) is connected to the root canal orcanals (c) contains blood vessels, nerves, and connective tissue (d) all of these (e) none of these24. The root canal of a tooth __?__. (a) is surrounded by dentine (b) leads to the pulp cavity (c) is a passage forblood vessels and nerves (d) is located in a root (e) all of these25. Which teeth have the most roots ? (a) upper molars (b) lower molars (c) incisors (d) canines (e) premolars26. In the root of a tooth, the dentine is covered with the bone-like substance __?__. (a) cementum (b) enamel (c)pulp (d) periodontal membrane (e) gingiva27.

9 The periodontal membrane that anchors a tooth root in its alveolus is __?__. (a) fibrous connective tissue (b) agomphosis type joint (c) a slightly moveable joint (d) all of these (e) none of these28. The neck of a tooth __?__. (a) connects the crown and the root (b) is the attachment site of the gingiva (c) isnot visible unless the gingiva has retracted (d) all of these (e) none of these29. No new enamel is formed after a tooth has erupted because __?__. (a) enamel is produced by a sheet of cellscovering the enamel that is destroyed after eruption (b) enamel lasts a lifetime and does not need to bereplaced (c) all the cells that produce dentine and cementum stop working after the tooth erupts (d) God didnot want it that way30.

10 The teeth are supplied by branches of the __?__ arteries and the __?__ nerves. (a) maxillary, trigeminal (b)lingual, facial (c) internal carotid, hypoglossal (e) maxillary, vagus31. The masses of lymphatic tissue located between the palatoglossal and palatopharyngeal arches of the oral cavityare the: (a) adenoids (b) pharyngeal tonsils (c) palatine tonsils (d) lingual tonsil (e) none of The pharynx __?__. (a) is open anteriorly to the nasal, oral, and laryngeal cavities (b) has a core of three paired,overlapping constrictor muscles (c) is divided into three parts (d) all of these (e) none of these33.