Question 1

________ Glossopharyngeal nerve
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The glossopharyngeal nerve (CN IX)is the nerve of the third pharyngeal arch;it supplies the stylopharyngeus muscle derived from the muscle element in this arch.Because the dorsal part of the root of the tongue is derived from the third arch,its sensory innervation is partly supplied by the glossopharyngeal nerve.

Question 2

________ Supplied by the vagus nerve
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The image depicts the lower respiratory tract and the structure labeled with TB1080_00 is the trachealis muscle. The trachealis muscle is supplied by the vagus nerve, which is represented by structure E.

Question 3

________ Forms the inferior part of the face
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Forms the inferior part of...

Question 4

________ Lesser horns of the hyoid bone
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The second pharyngeal arch gives rise to the lesser horns of the hyoid bone.

Question 5

________ Main contributor to the thyroid cartilage
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The cartilages of the fourth pair of pharyngeal arches give rise to large parts of the thyroid cartilage.The cartilages of the sixth arches also contribute to the laryngeal cartilages.

Question 6

________ Greater horn of hyoid bone
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The greater horns of the hyoid bone are derived from the cartilages of the third pair of pharyngeal arches.The inferior part of the body of this bone is also derived by endochondral ossification of these cartilages.

Question 7

________ Its muscle element gives rise to the platysma
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The platysma muscle arises from the subcutaneous tissue of the neck, specifically the fascia of the pectoral and deltoid muscles. The muscle element in the image that gives rise to the platysma is labeled as C.

Question 8

________ Its cartilage forms a greater horn of the hyoid bone
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Its cartilage forms a greater...

Question 9

________ Gives rise to the lateral palatine process
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The maxillary prominences of the first pair of pharyngeal arches give rise to two internal projections-lateral palatine processes.These processes later fuse with each other and with the nasal septum to form the posterior or secondary palate.Incomplete fusion of these processes results in a cleft of the posterior palate.

Question 10

________ Gives rise to lateral palatal process
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Gives rise to lateral palatal...

Question 11

________ Supplied by the vagus nerve (CN X)
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The fourth pharyngeal arch is supplied by the vagus nerve (CN X).This nerve supplies the intrinsic muscles of the larynx,which develop from myoblasts in this arch.

Question 12

________ Stylohyoid ligament
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The stylohyoid ligament is derived from the second pharyngeal arch.

Question 13

________ Superior laryngeal branch of the vagus nerve
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The superior laryngeal branch of the vagus nerve (CN X)supplies the fourth pharyngeal arch.Hence,it supplies the cricothyroid muscle and the constrictors of the pharynx that are derived from the muscle element in this arch.

Question 14

________ Forms inferior parathyroid gland
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Forms inferior parathyroid gland
A) A
B)...

Question 15

________ Its cartilage forms stapes
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The cartilage that forms stapes is part of the third pharyngeal arch, which is represented by structure C in the image.

Question 16

________ Forms the lateral part of upper lip
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The maxillary prominence of the first pharyngeal arch gives rise to the lateral part of the upper lip.It fuses with the intermaxillary segment (merged medial nasal prominences),which forms the central portion or philtrum of the lip.

Question 17

________ Supplied by the maxillary division of the fifth cranial nerve
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The maxillary prominence of the first pharyngeal arch is supplied by the maxillary division of the trigeminal nerve (CN V₂).The mandibular prominence is supplied by the mandibular branch of this nerve (CN V₃).The trigeminal nerve also supplies the muscles of mastication and other muscles derived from this arch.This nerve also supplies the skin over the mandible and the anterior two thirds of the tongue.

Question 18

________ Muscles of facial expression
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The second pharyngeal arch gives rise to the muscles of facial expression.

Question 19

________ Mandibular cartilage
A) First pharyngeal arch
B) Second pharyngeal arch
C) Third pharyngeal arch
D) Fourth pharyngeal arch
E) Sixth pharyngeal arch

Accepted Answer

The mandibular cartilage is derived from the second pharyngeal arch.

Question 20

________ Becomes the external acoustic meatus
A) A
B) B
C) C
D) D
E) E

Accepted Answer

The answer of  ________ Becomes the external acoustic meatus
A)...

Quiz 1: Gametogenesis and Fertilization

________ Glossopharyngeal nerve

________ Supplied by the vagus nerve

________ Forms the inferior part of the face

________ Lesser horns of the hyoid bone

________ Main contributor to the thyroid cartilage

________ Greater horn of hyoid bone

________ Its muscle element gives rise to the platysma

________ Its cartilage forms a greater horn of the hyoid bone

________ Gives rise to the lateral palatine process

________ Gives rise to lateral palatal process

________ Supplied by the vagus nerve (CN X)

________ Stylohyoid ligament

________ Superior laryngeal branch of the vagus nerve

________ Forms inferior parathyroid gland

________ Its cartilage forms stapes

________ Forms the lateral part of upper lip

________ Supplied by the maxillary division of the fifth cranial nerve

________ Muscles of facial expression

________ Mandibular cartilage

________ Becomes the external acoustic meatus