oral cavity anatomy Flashcards
1
Q
- Which of the following is NOT a boundary of the oral cavity?
a) Lips
b) Cheeks
c) Diaphragm
d) Soft palate
A
Answer: c) Diaphragm
2
Q
- What structure separates the oral cavity from the pharynx?
a) Cheeks
b) Hard palate
c) Isthmus faucium
d) Lips
A
Answer: c) Isthmus faucium
3
Q
- Which of the following is a function of the soft palate in the oral cavity?
a) Forms the upper boundary of the oral cavity
b) Separates the oral cavity from the nasal cavity
c) Seals off the nasopharynx during swallowing
d) Acts as a boundary between the oral and nasal cavities
A
Answer: c) Seals off the nasopharynx during swallowing
4
Q
- Which part of the oral cavity forms the anterior boundary?
a) Cheeks
b) Lips
c) Hard palate
d) Oral diaphragm
A
Answer: b) Lips
5
Q
- The oral diaphragm forms a boundary for the oral cavity, but what is its primary function?
a) It provides a separation between the oral cavity and the pharynx
b) It supports the movement of the tongue
c) It separates the oral cavity from the rest of the throat
d) It helps in mastication
A
Answer: a) It provides a separation between the oral cavity and the pharynx
6
Q
- Which of the following is part of the vestibule of the oral cavity?
a) Hard palate
b) Lips and cheeks
c) Floor of the mouth
d) Alveolar arches
A
Answer: b) Lips and cheeks
7
Q
- The oral cavity proper includes all of the following EXCEPT:
a) Alveolar arches
b) Teeth and gums
c) Oropharyngeal isthmus
d) Lips and cheeks
A
Answer: d) Lips and cheeks
8
Q
- Which structure forms the boundary between the oral cavity proper and the oropharynx?
a) Alveolar arches
b) Oropharyngeal isthmus
c) Floor of the mouth
d) Soft palate
A
Answer: b) Oropharyngeal isthmus
9
Q
- What is found in the floor of the oral cavity proper?
a) Teeth and gums
b) Alveolar arches
c) Hard and soft palates
d) Tongue and salivary glands
A
Answer: d) Tongue and salivary glands
10
Q
- Which of the following structures is a boundary of both the oral cavity proper and the vestibule?
a) Gums and teeth
b) Oropharyngeal isthmus
c) Alveolar arches
d) Floor of the mouth
A
Answer: a) Gums and teeth
11
Q
- The vestibule is continuous with the oral cavity proper behind which teeth?
a) Incisors
b) Canine teeth
c) Premolars
d) Third molars
A
Answer: d) Third molars
12
Q
- Where is the retromolar space located in relation to the teeth?
a) In front of the first molars
b) Behind the third molars
c) Above the incisors
d) Between the canine and premolar teeth
A
Answer: b) Behind the third molars
13
Q
- The vestibule becomes continuous with the oral cavity proper when the teeth are:
a) Separating
b) Apposed (touching)
c) Crooked
d) Inactive
A
Answer: b) Apposed (touching)
14
Q
- What is the primary function of the retromolar space in the oral cavity?
a) It separates the oral cavity from the nasal cavity
b) It serves as the boundary between the vestibule and the oral cavity proper
c) It is the space behind the third molars
d) It helps in speech formation
A
Answer: b) It serves as the boundary between the vestibule and the oral cavity proper
15
Q
- The continuous connection between the vestibule and the oral cavity proper is located in which area?
a) The upper jaw
b) The retromolar space behind the third molars
c) The tongue
d) The palatal arch
A
Answer: b) The retromolar space behind the third molars
16
Q
- Which of the following structures lies between the skin and mucosa of the lips?
a) Orbicularis oris
b) Buccinator
c) Masseter
d) Temporalis
A
Answer: a) Orbicularis oris
17
Q
- What type of tissue is found in the lips between the orbicularis oris muscle and the mucosa?
a) Bone
b) Fibro-adipose connective tissue
c) Cartilage
d) Dense fibrous tissue
A
Answer: b) Fibro-adipose connective tissue
18
Q
- Where is the vermilion border located?
a) Between the lips and teeth
b) At the junction between the skin and mucosa of the lips
c) Between the upper and lower lips
d) Between the lips and gums
A
Answer: b) At the junction between the skin and mucosa of the lips
19
Q
- Which of the following is NOT found in the lips?
a) Labial salivary glands
b) Orbicularis oris muscle
c) Buccal fat pad
d) Labial vessels and nerves
A
Answer: c) Buccal fat pad
20
Q
- What does the skin of the lips transition into at the vermilion border?
a) Oral cavity mucosa
b) Gum tissue
c) Cheek lining
d) Buccal mucosa
A
Answer: a) Oral cavity mucosa
21
Q
- What is the labial commissure?
a) The area between the upper and lower lip
b) The corner of the mouth
c) The groove above the upper lip
d) The line where the lips meet the gums
A
Answer: b) The corner of the mouth
22
Q
- The nasolabial sulcus forms the lateral boundary of which lip?
a) Lower lip
b) Upper lip
c) Both upper and lower lips
d) Neither upper nor lower lip
A
Answer: b) Upper lip
23
Q
- Which of the following is a shallow vertical groove found on the upper lip?
a) Mentolabial sulcus
b) Philtrum
c) Nasolabial sulcus
d) Labial commissure
A
Answer: b) Philtrum
24
Q
- Which of the following defines the inferior boundary of the lower lip?
a) Labial commissure
b) Mentolabial sulcus
c) Philtrum
d) Nasolabial sulcus
A
Answer: b) Mentolabial sulcus
25
Q
- Which of the following is the correct term for the connective tissue band found in the center of the lips?
a) Labial sulcus
b) Labial frenulum
c) Nasolabial fold
d) Mentolabial sulcus
A
Answer: b) Labial frenulum
26
Q
- Where is the philtrum located?
a) Below the lower lip
b) Between the upper lip and nose
c) At the corner of the mouth
d) Between the gums and the teeth
A
Answer: b) Between the upper lip and nose
27
Q
- The superior and inferior labial arteries are branches of which main artery?
a) Carotid artery
b) Subclavian artery
c) Facial artery
d) Maxillary artery
A
Answer: c) Facial artery
28
Q
- The transverse facial artery, a branch of which artery, supplies blood to the cheeks?
a) Maxillary artery
b) Subclavian artery
c) Superficial temporal artery
d) Facial artery
A
Answer: c) Superficial temporal artery
29
Q
- The lymphatic drainage of the lips primarily involves which lymph nodes?
a) Axillary and inguinal lymph nodes
b) Submandibular and submental lymph nodes
c) Cervical and thoracic lymph nodes
d) Popliteal and iliac lymph nodes
A
Answer: b) Submandibular and submental lymph nodes
30
Q
- Which of the following tissues are found in the cheeks?
a) Skeletal muscles, adipose tissue, fibrous connective tissue, vessels, nerves, and buccal salivary glands
b) Bone, cartilage, and skin
c) Smooth muscle, cartilage, and synovial tissue
d) Only skin and muscles
A
Answer: a) Skeletal muscles, adipose tissue, fibrous connective tissue, vessels, nerves, and buccal salivary glands
31
Q
- Which of the following veins drains the blood from the lips?
a) Jugular vein
b) Submental vein
c) Temporal vein
d) Retromandibular vein
A
Answer: b) Submental vein
32
Q
- Which of the following nerves provide sensory innervation to the lips?
a) Vagus nerve
b) Maxillary and mandibular nerves
c) Optic nerve
d) Facial nerve
A
Answer: b) Maxillary and mandibular nerves
33
Q
- Which arteries, besides the transverse facial artery, supply the cheeks?
a) Buccal artery and infraorbital artery
b) Carotid artery and radial artery
c) Femoral artery and subclavian artery
d) Internal jugular artery and brachiocephalic artery
A
Answer: a) Buccal artery and infraorbital artery
34
Q
- The sensory innervation of the cheeks is provided by which nerves?
a) Vagus and facial nerves
b) Maxillary and mandibular nerves
c) Optic and glossopharyngeal nerves
d) Trigeminal and accessory nerves
A
Answer: b) Maxillary and mandibular nerves
35
Q
- Which lymph nodes are responsible for the lymphatic drainage of the cheeks?
a) Cervical and axillary lymph nodes
b) Submandibular and parotid lymph nodes
c) Inguinal and femoral lymph nodes
d) Popliteal and iliac lymph nodes
A
Answer: b) Submandibular and parotid lymph nodes
36
Q
- The gums (gingivae) are primarily composed of which type of tissue?
a) Cartilage
b) Dense, vascular fibrous tissue
c) Loose connective tissue
d) Smooth muscle tissue
A
Answer: b) Dense, vascular fibrous tissue
37
Q
- The gums are firmly attached to which structures?
a) Mucosal lining of the oral cavity and teeth
b) Cement at the necks of the teeth and bone of the adjacent alveolar process
c) Palate and cheeks
d) Tongue and palate
A
Answer: b) Cement at the necks of the teeth and bone of the adjacent alveolar process
38
Q
- The lymphatic drainage of the gums is primarily into which lymph nodes?
a) Cervical and thoracic lymph nodes
b) Submandibular and submental lymph nodes
c) Axillary and inguinal lymph nodes
d) Popliteal and iliac lymph nodes
A
Answer: b) Submandibular and submental lymph nodes
39
Q
- Which arteries supply blood to the gums (gingivae)?
a) Facial artery and its superior and inferior labial branches
b) Maxillary artery
c) Subclavian and carotid arteries
d) External jugular and brachiocephalic arteries
A
Answer: a) Facial artery and its superior and inferior labial branches
40
Q
- Which nerves provide sensory innervation to the gums?
a) Optic and facial nerves
b) Maxillary and mandibular nerves
c) Vagus and glossopharyngeal nerves
d) Trigeminal and accessory nerves
A
Answer: b) Maxillary and mandibular nerves
41
Q
- The palatine raphe is a zone lacking submucosa that runs in which direction on the hard palate?
a) Transversely
b) Anteroposteriorly
c) Diagonally
d) Laterally
A
Answer: b) Anteroposteriorly
42
Q
- The hard palate is primarily composed of which structures?
a) Palatine processes of the maxillae and horizontal plates of the palatine bones
b) Only the maxillae
c) Only the palatine bones
d) The nasal septum and maxillary bones
A
Answer: a) Palatine processes of the maxillae and horizontal plates of the palatine bones
43
Q
- Which portion of the hard palate is formed by the palatine processes of the maxillae?
a) 1/4 anterior part
b) 1/2 posterior part
c) 2/3 anterior part
d) Entire surface
A
Answer: c) 2/3 anterior part
44
Q
- The soft palate is described as a:
a) Rigid structure firmly attached to the maxillae
b) Mobile flap suspended from the posterior border of the hard palate
c) Fixed bony structure that provides support to the tongue
d) Non-mobile membrane lining the nasal cavity
A
Answer: b) Mobile flap suspended from the posterior border of the hard palate
45
Q
- The uvula is located at the posterior border of which structure?
a) Hard palate
b) Soft palate
c) Tongue
d) Maxilla
A
Answer: b) Soft palate
46
Q
- What is the uvula?
a) A bony structure at the base of the hard palate
b) A median conical process that projects downwards from the posterior border of the soft palate
c) A muscle located at the base of the tongue
d) A gland located behind the soft palate
A
Answer: b) A median conical process that projects downwards from the posterior border of the soft palate
47
Q
- What is located at the anterior end of the palatine raphe on the hard palate?
a) Incisive papilla
b) Uvula
c) Maxillary ridge
d) Palatine tonsil
A
Answer: a) Incisive papilla
48
Q
- The incisive papilla covers which anatomical feature of the hard palate?
a) Maxillary ridge
b) Incisive fossa
c) Palatine bone
d) Rugae
A
Answer: b) Incisive fossa
49
Q
- What structure runs laterally from the palatine raphe in the anterior part of the hard palate?
a) Incisive papilla
b) Transverse ridges or rugae
c) Soft palate
d) Buccal fat pad
A
Answer: b) Transverse ridges or rugae
50
Q
- The rugae on the hard palate are composed of which type of tissue?
a) Smooth muscle
b) Dense connective tissue
c) Bone tissue
d) Elastic cartilage
A
Answer: b) Dense connective tissue
51
Q
- What structure separates the oral cavity from the pharynx?
a) Cheeks
b) Hard palate
c) Isthmus faucium
d) Lips
A
Answer: c) Isthmus faucium
52
Q
A
