Deck 4: Epithelium and Glands

Question 1

In Fig. Img_008, the tissue at the tip of the pointer is classified as

A) stratified squamous epithelium
B) loose connective tissue
C) dense irregular collagenous connective tissue
D) simple squamous epithelium
E) stratified cuboidal epithelium

Answer 1

D

Question 2

The apical and basolateral surfaces of a polarized cell maintain their integrity due to the presence of

A) gap junctions
B) zonula adherens
C) fascia adherens
D) zonula occludens
E) fascia occludens

Answer 2

D

Question 3

A patient presents with a swelling on the external aspect of his cheek just anterior to the pinna of his ear. The region is tender, and upon examination it is evident that there is a blockage of salivary flow into the vestibule near the second maxillary molar, indicating a possible blockage of the duct (Stensen duct) of the parotid gland. Which of the following is a correct statement about the parotid? It is a

A) simple serous gland
B) simple mucous gland
C) compound serous gland
D) compound mucous gland
E) compound mixed gland

Answer 3

C

Question 4

In Fig. Img_022, the epithelium at the free surface is classified as

A) simple squamous
B) simple cuboidal
C) stratified squamous keratinized
D) stratified cuboidal
E) transitional

Question 5

In Fig. Img_005, the cell at the tip of the pointer manufactures and releases

A) mucinogen
B) mucinase
C) mucus
D) mucilage
E) mucin

Question 6

SEQ CHAPTER \h \r 1The principal product manufactured by goblet cells is known as

A) mucin
B) mucus
C) mucinogen
D) theca
E) mucosa

Question 7

A 10-year-old boy presents with peroneal muscular atrophy (Charcot-Marie-Tooth syndrome). He has weakness in his legs and atrophied calf and hand muscles. Additionally, he lost some heat, pain, and cold sensation in his feet and hands. This common hereditary neuropathy is the result of a mutation in the gene coding for

A) cadherins
B) integrins
C) dystroglycans
D) connexins
E) occludins

Question 8

In Fig. Img_023, the epithelium at the free surface is classified as

A) simple squamous
B) simple cuboidal
C) stratified squamous keratinized
D) stratified cuboidal
E) transitional

Question 9

A patient who was a long-time heavy smoker was seen by a physician for a persistent cough. A biopsy of the bronchial lining displayed a change in the epithelium from pseudostratified ciliated columnar to stratified squamous. The patient decided to quit smoking, and a second biopsy 6 months later showed that a reversal had occurred in the epithelium; it was back to the normal pseudostratified ciliated columnar. This patient had

A) carcinoma
B) adenocarcinoma
C) squamous metaplasia
D) bronchitis
E) pneumonia

Question 10

Which of the following substances is manufactured by epithelial cells?

A) procollagen
B) type II collagen
C) elastin
D) heparin
E) chondroitin sulfate

Question 11

An elderly patient is seen by her physician because of a dry mouth. It appears that her parotid glands no longer produce saliva. Which is the correct classification of the parotid glands?

A) apocrine
B) holocrine
C) sebaceous
D) mixed
E) serous

Question 12

In Fig. Img_018, the epithelium lining the lumen of this organ is classified as

A) simple squamous
B) simple cuboidal
C) stratified squamous nonkeratinized
D) stratified cuboidal
E) transitional

Question 13

SEQ CHAPTER \h \r 1Which of the following glycoproteins is manufactured by epithelial cells?

A) laminin
B) chondronectin
C) osteonectin
D) fibronectin
E) tenascin

Question 14

The urinary bladder needs to stretch (distend) and then return to its original shape. Which of the following epithelia are associated with that organ?

A) transitional
B) simple cuboidal
C) simple columnar
D) simple squamous
E) pseudostratified columnar

Question 15

Which of the following substances is manufactured by epithelial cells and is not calcium-dependent?

A) connexons
B) integrins
C) microfibrils
D) cadherins
E) claudins

Question 16

In Fig. Img_006, this is a healthy region in a patient suffering from cancer of the

A) esophagus
B) skin
C) urinary bladder
D) gallbladder
E) cervix

Question 17

The statement that subunit A has 13 protofilaments and subunit B has 10 protofilaments refers to the core of a

A) microvillus
B) cilium
C) stereocilium
D) villus
E) brush border

Question 18

In Fig. Img_021, a large percentage of the epithelial cells of this organ appear to possess an empty region. In life, that region was filled with secretory granules housing

A) mucus
B) mucinogen
C) mucin
D) trypsinogen
E) trypsin