HUMAN ANATOMY MIDTERM 1: 3.1 PART I

20) Unicellular exocrine glands are ________. A) mixed exocrine glands B) connected to a surface by ducts C) also called goblet cells D) arranged in a secretory sheet E) None of the answers are correct.

C) also called goblet cells

11) Epithelial cells usually have ________. A) a basal lamina B) unevenly distributed organelles C) apical and basal plasmalemmae with different associated proteins and functions D) an exposed apical surface E) All of the answers are correct.

E) All of the answers are correct.

1) Through the process of cell differentiation ________. A) each cell develops a characteristic set of structural features B) each cell becomes capable of performing all vital functions C) cells in nearby locations become unable to work together D) each cell becomes able to change its function throughout its life cycle E) None of the answers are correct.

A) each cell develops a characteristic set of structural features

8) The presence of large numbers of microvilli on the exposed surfaces of epithelial cells indicates that ________. A) it is an area where absorption and secretion occur B) these cells provide energy for transport activities C) these cells are probably located along portions of the respiratory tract from the lungs toward the throat D) All of the answers are correct. E) None of the answers are correct.

A) it is an area where absorption and secretion occur

12) What type of epithelium makes up the endothelium of blood vessels? A) simple squamous B) stratified cuboidal C) transitional D) simple columnar E) pseudostratified columnar

A) simple squamous

18) Hormones are examples of ________ secretion. A) exocrine B) endocrine C) holocrine D) merocrine E) apocrine

B) endocrine

19) What is the simplest multicellular exocrine gland called? A) tubular glands B) secretory sheet C) acinar glands D) alveolar glands E) simple coiled tubular

B) secretory sheet

17) The tissue lining the small intestine of the digestive tract is called ________. A) stratified squamous epithelium B) simple columnar epithelium C) stratified columnar epithelium D) simple squamous epithelium E) None of the answers are correct.

B) simple columnar epithelium

2) Which of the following is the study of groups of cells, tissues, and organs that work together to perform specific functions? A) cytology B) anatomy C) histology D) physiology E) embryology

C) histology

9) Stereocilia are described by which of the following? A) present in the epithelium of the female reproductive tract B) very short microvilli C) present on receptor cells of the inner ear D) manufactured by the Golgi apparatus E) All of the answers are correct.

C) present on receptor cells of the inner ear

21) Exocrine glands, which secrete a watery solution that usually contains enzymes are called ________. A) mucous glands B) endocrine glands C) serous glands D) mixed exocrine glands E) None of the answers are correct.

C) serous glands

13) Merocrine sweat glands are classified as which of the following? A) simple alveolar B) simple tubular C) simple coiled tubular D) simple branched alveolar E) simple branched tubular

C) simple coiled tubular

14) Which of the following terms means two or more layers? A) pseudostratified B) columnar C) stratified D) cuboidal E) None of the answers are correct.

C) stratified

16) Which type of epithelium lines the renal pelvis, ureters, and urinary bladder? A) cuboidal B) columnar C) transitional D) squamous E) glandular

C) transitional

7) Which of the following exclusively describes stratified epithelia? A) They consist of a single cell layer. B) They always have a free surface exposed to some inner chamber or passageway. C) They are avascular. D) They cover surfaces subjected to mechanical and chemical stress. E) None of the answers are correct.

D) They cover surfaces subjected to mechanical and chemical stress.

10) Which type of epithelium is present where easy exchange of materials out of the blood is most important, such as that in the lining of the heart and all blood vessels? A) stratified squamous epithelium B) columnar epithelium C) cuboidal epithelium D) endothelium E) simple epithelium

D) endothelium

15) What type of tissue comprises the inner lining of the ventral body cavity? A) simple squamous epithelium B) stratified epithelium C) columnar epithelium D) mesothelium E) endothelium

D) mesothelium

3) In epithelial tissues ________. A) cells that are damaged or lost at the surface cannot be replaced B) cells obtain nutrients via blood vessels found in the tissues C) extracellular fluid or fibers separate the individual cells D) there is little or no intercellular space between the cells E) the organelles and other cytoplasmic components are evenly distributed between the exposed

D) there is little or no intercellular space between the cells

4) Which feature(s) provides great strength and stability to epithelia? A) intercellular cement B) cell adhesion molecules C) cell junctions D) physical interlocking E) All of the answers are correct.

E) All of the answers are correct.

5) Which epithelial feature, dominated by glycoproteins and a network of five microfilaments, functions in providing a barrier that restricts the movement of proteins and other large molecules from the underlying connective tissue? A) basolateral surface B) apical surface C) dense layer of basal lamina D) intercellular connections E) clear layer of basal lamina

E) clear layer of basal lamina

6) Which type of epithelium is found in portions of the respiratory tract and includes a mixture of cell types whose nuclei are situated at varying distances from the surface? A) simple squamous B) simple cuboidal C) stratified columnar D) stratified cuboidal E) pseudostratified columnar

E) pseudostratified columnar